diff --git a/BUILD b/BUILD
index 89dbddf..fbb0316 100644
--- a/BUILD
+++ b/BUILD
@@ -53,7 +53,6 @@
     "src/core/lib/support/env.h",
     "src/core/lib/support/mpscq.h",
     "src/core/lib/support/murmur_hash.h",
-    "src/core/lib/support/percent_encoding.h",
     "src/core/lib/support/stack_lockfree.h",
     "src/core/lib/support/string.h",
     "src/core/lib/support/string_windows.h",
@@ -82,9 +81,6 @@
     "src/core/lib/support/log_windows.c",
     "src/core/lib/support/mpscq.c",
     "src/core/lib/support/murmur_hash.c",
-    "src/core/lib/support/percent_encoding.c",
-    "src/core/lib/support/slice.c",
-    "src/core/lib/support/slice_buffer.c",
     "src/core/lib/support/stack_lockfree.c",
     "src/core/lib/support/string.c",
     "src/core/lib/support/string_posix.c",
@@ -122,8 +118,6 @@
     "include/grpc/support/log.h",
     "include/grpc/support/log_windows.h",
     "include/grpc/support/port_platform.h",
-    "include/grpc/support/slice.h",
-    "include/grpc/support/slice_buffer.h",
     "include/grpc/support/string_util.h",
     "include/grpc/support/subprocess.h",
     "include/grpc/support/sync.h",
@@ -235,6 +229,8 @@
     "src/core/lib/json/json_common.h",
     "src/core/lib/json/json_reader.h",
     "src/core/lib/json/json_writer.h",
+    "src/core/lib/slice/percent_encoding.h",
+    "src/core/lib/slice/slice_string_helpers.h",
     "src/core/lib/surface/api_trace.h",
     "src/core/lib/surface/call.h",
     "src/core/lib/surface/call_test_only.h",
@@ -413,6 +409,10 @@
     "src/core/lib/json/json_reader.c",
     "src/core/lib/json/json_string.c",
     "src/core/lib/json/json_writer.c",
+    "src/core/lib/slice/percent_encoding.c",
+    "src/core/lib/slice/slice.c",
+    "src/core/lib/slice/slice_buffer.c",
+    "src/core/lib/slice/slice_string_helpers.c",
     "src/core/lib/surface/alarm.c",
     "src/core/lib/surface/api_trace.c",
     "src/core/lib/surface/byte_buffer.c",
@@ -547,6 +547,8 @@
     "include/grpc/grpc.h",
     "include/grpc/grpc_posix.h",
     "include/grpc/grpc_security_constants.h",
+    "include/grpc/slice.h",
+    "include/grpc/slice_buffer.h",
     "include/grpc/status.h",
     "include/grpc/impl/codegen/byte_buffer_reader.h",
     "include/grpc/impl/codegen/compression_types.h",
@@ -661,6 +663,8 @@
     "src/core/lib/json/json_common.h",
     "src/core/lib/json/json_reader.h",
     "src/core/lib/json/json_writer.h",
+    "src/core/lib/slice/percent_encoding.h",
+    "src/core/lib/slice/slice_string_helpers.h",
     "src/core/lib/surface/api_trace.h",
     "src/core/lib/surface/call.h",
     "src/core/lib/surface/call_test_only.h",
@@ -824,6 +828,10 @@
     "src/core/lib/json/json_reader.c",
     "src/core/lib/json/json_string.c",
     "src/core/lib/json/json_writer.c",
+    "src/core/lib/slice/percent_encoding.c",
+    "src/core/lib/slice/slice.c",
+    "src/core/lib/slice/slice_buffer.c",
+    "src/core/lib/slice/slice_string_helpers.c",
     "src/core/lib/surface/alarm.c",
     "src/core/lib/surface/api_trace.c",
     "src/core/lib/surface/byte_buffer.c",
@@ -933,6 +941,8 @@
     "include/grpc/grpc.h",
     "include/grpc/grpc_posix.h",
     "include/grpc/grpc_security_constants.h",
+    "include/grpc/slice.h",
+    "include/grpc/slice_buffer.h",
     "include/grpc/status.h",
     "include/grpc/impl/codegen/byte_buffer_reader.h",
     "include/grpc/impl/codegen/compression_types.h",
@@ -1042,6 +1052,8 @@
     "src/core/lib/json/json_common.h",
     "src/core/lib/json/json_reader.h",
     "src/core/lib/json/json_writer.h",
+    "src/core/lib/slice/percent_encoding.h",
+    "src/core/lib/slice/slice_string_helpers.h",
     "src/core/lib/surface/api_trace.h",
     "src/core/lib/surface/call.h",
     "src/core/lib/surface/call_test_only.h",
@@ -1197,6 +1209,10 @@
     "src/core/lib/json/json_reader.c",
     "src/core/lib/json/json_string.c",
     "src/core/lib/json/json_writer.c",
+    "src/core/lib/slice/percent_encoding.c",
+    "src/core/lib/slice/slice.c",
+    "src/core/lib/slice/slice_buffer.c",
+    "src/core/lib/slice/slice_string_helpers.c",
     "src/core/lib/surface/alarm.c",
     "src/core/lib/surface/api_trace.c",
     "src/core/lib/surface/byte_buffer.c",
@@ -1302,6 +1318,8 @@
     "include/grpc/grpc.h",
     "include/grpc/grpc_posix.h",
     "include/grpc/grpc_security_constants.h",
+    "include/grpc/slice.h",
+    "include/grpc/slice_buffer.h",
     "include/grpc/status.h",
     "include/grpc/impl/codegen/byte_buffer_reader.h",
     "include/grpc/impl/codegen/compression_types.h",
@@ -1882,9 +1900,6 @@
     "src/core/lib/support/log_windows.c",
     "src/core/lib/support/mpscq.c",
     "src/core/lib/support/murmur_hash.c",
-    "src/core/lib/support/percent_encoding.c",
-    "src/core/lib/support/slice.c",
-    "src/core/lib/support/slice_buffer.c",
     "src/core/lib/support/stack_lockfree.c",
     "src/core/lib/support/string.c",
     "src/core/lib/support/string_posix.c",
@@ -1922,8 +1937,6 @@
     "include/grpc/support/log.h",
     "include/grpc/support/log_windows.h",
     "include/grpc/support/port_platform.h",
-    "include/grpc/support/slice.h",
-    "include/grpc/support/slice_buffer.h",
     "include/grpc/support/string_util.h",
     "include/grpc/support/subprocess.h",
     "include/grpc/support/sync.h",
@@ -1954,7 +1967,6 @@
     "src/core/lib/support/env.h",
     "src/core/lib/support/mpscq.h",
     "src/core/lib/support/murmur_hash.h",
-    "src/core/lib/support/percent_encoding.h",
     "src/core/lib/support/stack_lockfree.h",
     "src/core/lib/support/string.h",
     "src/core/lib/support/string_windows.h",
@@ -2055,6 +2067,10 @@
     "src/core/lib/json/json_reader.c",
     "src/core/lib/json/json_string.c",
     "src/core/lib/json/json_writer.c",
+    "src/core/lib/slice/percent_encoding.c",
+    "src/core/lib/slice/slice.c",
+    "src/core/lib/slice/slice_buffer.c",
+    "src/core/lib/slice/slice_string_helpers.c",
     "src/core/lib/surface/alarm.c",
     "src/core/lib/surface/api_trace.c",
     "src/core/lib/surface/byte_buffer.c",
@@ -2189,6 +2205,8 @@
     "include/grpc/grpc.h",
     "include/grpc/grpc_posix.h",
     "include/grpc/grpc_security_constants.h",
+    "include/grpc/slice.h",
+    "include/grpc/slice_buffer.h",
     "include/grpc/status.h",
     "include/grpc/impl/codegen/byte_buffer_reader.h",
     "include/grpc/impl/codegen/compression_types.h",
@@ -2282,6 +2300,8 @@
     "src/core/lib/json/json_common.h",
     "src/core/lib/json/json_reader.h",
     "src/core/lib/json/json_writer.h",
+    "src/core/lib/slice/percent_encoding.h",
+    "src/core/lib/slice/slice_string_helpers.h",
     "src/core/lib/surface/api_trace.h",
     "src/core/lib/surface/call.h",
     "src/core/lib/surface/call_test_only.h",
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2d74452..4d67d76 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -193,9 +193,6 @@
   src/core/lib/support/log_windows.c
   src/core/lib/support/mpscq.c
   src/core/lib/support/murmur_hash.c
-  src/core/lib/support/percent_encoding.c
-  src/core/lib/support/slice.c
-  src/core/lib/support/slice_buffer.c
   src/core/lib/support/stack_lockfree.c
   src/core/lib/support/string.c
   src/core/lib/support/string_posix.c
@@ -244,8 +241,6 @@
   include/grpc/support/log.h
   include/grpc/support/log_windows.h
   include/grpc/support/port_platform.h
-  include/grpc/support/slice.h
-  include/grpc/support/slice_buffer.h
   include/grpc/support/string_util.h
   include/grpc/support/subprocess.h
   include/grpc/support/sync.h
@@ -369,6 +364,10 @@
   src/core/lib/json/json_reader.c
   src/core/lib/json/json_string.c
   src/core/lib/json/json_writer.c
+  src/core/lib/slice/percent_encoding.c
+  src/core/lib/slice/slice.c
+  src/core/lib/slice/slice_buffer.c
+  src/core/lib/slice/slice_string_helpers.c
   src/core/lib/surface/alarm.c
   src/core/lib/surface/api_trace.c
   src/core/lib/surface/byte_buffer.c
@@ -523,6 +522,8 @@
   include/grpc/grpc.h
   include/grpc/grpc_posix.h
   include/grpc/grpc_security_constants.h
+  include/grpc/slice.h
+  include/grpc/slice_buffer.h
   include/grpc/status.h
   include/grpc/impl/codegen/byte_buffer_reader.h
   include/grpc/impl/codegen/compression_types.h
@@ -642,6 +643,10 @@
   src/core/lib/json/json_reader.c
   src/core/lib/json/json_string.c
   src/core/lib/json/json_writer.c
+  src/core/lib/slice/percent_encoding.c
+  src/core/lib/slice/slice.c
+  src/core/lib/slice/slice_buffer.c
+  src/core/lib/slice/slice_string_helpers.c
   src/core/lib/surface/alarm.c
   src/core/lib/surface/api_trace.c
   src/core/lib/surface/byte_buffer.c
@@ -767,6 +772,8 @@
   include/grpc/grpc.h
   include/grpc/grpc_posix.h
   include/grpc/grpc_security_constants.h
+  include/grpc/slice.h
+  include/grpc/slice_buffer.h
   include/grpc/status.h
   include/grpc/impl/codegen/byte_buffer_reader.h
   include/grpc/impl/codegen/compression_types.h
@@ -887,6 +894,10 @@
   src/core/lib/json/json_reader.c
   src/core/lib/json/json_string.c
   src/core/lib/json/json_writer.c
+  src/core/lib/slice/percent_encoding.c
+  src/core/lib/slice/slice.c
+  src/core/lib/slice/slice_buffer.c
+  src/core/lib/slice/slice_string_helpers.c
   src/core/lib/surface/alarm.c
   src/core/lib/surface/api_trace.c
   src/core/lib/surface/byte_buffer.c
@@ -1010,6 +1021,8 @@
   include/grpc/grpc.h
   include/grpc/grpc_posix.h
   include/grpc/grpc_security_constants.h
+  include/grpc/slice.h
+  include/grpc/slice_buffer.h
   include/grpc/status.h
   include/grpc/impl/codegen/byte_buffer_reader.h
   include/grpc/impl/codegen/compression_types.h
diff --git a/Makefile b/Makefile
index da0152b..6f37a1d 100644
--- a/Makefile
+++ b/Makefile
@@ -948,9 +948,6 @@
 gpr_host_port_test: $(BINDIR)/$(CONFIG)/gpr_host_port_test
 gpr_log_test: $(BINDIR)/$(CONFIG)/gpr_log_test
 gpr_mpscq_test: $(BINDIR)/$(CONFIG)/gpr_mpscq_test
-gpr_percent_encoding_test: $(BINDIR)/$(CONFIG)/gpr_percent_encoding_test
-gpr_slice_buffer_test: $(BINDIR)/$(CONFIG)/gpr_slice_buffer_test
-gpr_slice_test: $(BINDIR)/$(CONFIG)/gpr_slice_test
 gpr_stack_lockfree_test: $(BINDIR)/$(CONFIG)/gpr_stack_lockfree_test
 gpr_string_test: $(BINDIR)/$(CONFIG)/gpr_string_test
 gpr_sync_test: $(BINDIR)/$(CONFIG)/gpr_sync_test
@@ -1007,6 +1004,7 @@
 no_server_test: $(BINDIR)/$(CONFIG)/no_server_test
 percent_decode_fuzzer: $(BINDIR)/$(CONFIG)/percent_decode_fuzzer
 percent_encode_fuzzer: $(BINDIR)/$(CONFIG)/percent_encode_fuzzer
+percent_encoding_test: $(BINDIR)/$(CONFIG)/percent_encoding_test
 resolve_address_test: $(BINDIR)/$(CONFIG)/resolve_address_test
 resource_quota_test: $(BINDIR)/$(CONFIG)/resource_quota_test
 secure_channel_create_test: $(BINDIR)/$(CONFIG)/secure_channel_create_test
@@ -1016,6 +1014,9 @@
 server_fuzzer: $(BINDIR)/$(CONFIG)/server_fuzzer
 server_test: $(BINDIR)/$(CONFIG)/server_test
 set_initial_connect_string_test: $(BINDIR)/$(CONFIG)/set_initial_connect_string_test
+slice_buffer_test: $(BINDIR)/$(CONFIG)/slice_buffer_test
+slice_string_helpers_test: $(BINDIR)/$(CONFIG)/slice_string_helpers_test
+slice_test: $(BINDIR)/$(CONFIG)/slice_test
 sockaddr_resolver_test: $(BINDIR)/$(CONFIG)/sockaddr_resolver_test
 sockaddr_utils_test: $(BINDIR)/$(CONFIG)/sockaddr_utils_test
 socket_utils_test: $(BINDIR)/$(CONFIG)/socket_utils_test
@@ -1286,9 +1287,6 @@
   $(BINDIR)/$(CONFIG)/gpr_host_port_test \
   $(BINDIR)/$(CONFIG)/gpr_log_test \
   $(BINDIR)/$(CONFIG)/gpr_mpscq_test \
-  $(BINDIR)/$(CONFIG)/gpr_percent_encoding_test \
-  $(BINDIR)/$(CONFIG)/gpr_slice_buffer_test \
-  $(BINDIR)/$(CONFIG)/gpr_slice_test \
   $(BINDIR)/$(CONFIG)/gpr_stack_lockfree_test \
   $(BINDIR)/$(CONFIG)/gpr_string_test \
   $(BINDIR)/$(CONFIG)/gpr_sync_test \
@@ -1333,6 +1331,7 @@
   $(BINDIR)/$(CONFIG)/multiple_server_queues_test \
   $(BINDIR)/$(CONFIG)/murmur_hash_test \
   $(BINDIR)/$(CONFIG)/no_server_test \
+  $(BINDIR)/$(CONFIG)/percent_encoding_test \
   $(BINDIR)/$(CONFIG)/resolve_address_test \
   $(BINDIR)/$(CONFIG)/resource_quota_test \
   $(BINDIR)/$(CONFIG)/secure_channel_create_test \
@@ -1341,6 +1340,9 @@
   $(BINDIR)/$(CONFIG)/server_chttp2_test \
   $(BINDIR)/$(CONFIG)/server_test \
   $(BINDIR)/$(CONFIG)/set_initial_connect_string_test \
+  $(BINDIR)/$(CONFIG)/slice_buffer_test \
+  $(BINDIR)/$(CONFIG)/slice_string_helpers_test \
+  $(BINDIR)/$(CONFIG)/slice_test \
   $(BINDIR)/$(CONFIG)/sockaddr_resolver_test \
   $(BINDIR)/$(CONFIG)/sockaddr_utils_test \
   $(BINDIR)/$(CONFIG)/socket_utils_test \
@@ -1644,12 +1646,6 @@
 	$(Q) $(BINDIR)/$(CONFIG)/gpr_log_test || ( echo test gpr_log_test failed ; exit 1 )
 	$(E) "[RUN]     Testing gpr_mpscq_test"
 	$(Q) $(BINDIR)/$(CONFIG)/gpr_mpscq_test || ( echo test gpr_mpscq_test failed ; exit 1 )
-	$(E) "[RUN]     Testing gpr_percent_encoding_test"
-	$(Q) $(BINDIR)/$(CONFIG)/gpr_percent_encoding_test || ( echo test gpr_percent_encoding_test failed ; exit 1 )
-	$(E) "[RUN]     Testing gpr_slice_buffer_test"
-	$(Q) $(BINDIR)/$(CONFIG)/gpr_slice_buffer_test || ( echo test gpr_slice_buffer_test failed ; exit 1 )
-	$(E) "[RUN]     Testing gpr_slice_test"
-	$(Q) $(BINDIR)/$(CONFIG)/gpr_slice_test || ( echo test gpr_slice_test failed ; exit 1 )
 	$(E) "[RUN]     Testing gpr_stack_lockfree_test"
 	$(Q) $(BINDIR)/$(CONFIG)/gpr_stack_lockfree_test || ( echo test gpr_stack_lockfree_test failed ; exit 1 )
 	$(E) "[RUN]     Testing gpr_string_test"
@@ -1724,6 +1720,8 @@
 	$(Q) $(BINDIR)/$(CONFIG)/murmur_hash_test || ( echo test murmur_hash_test failed ; exit 1 )
 	$(E) "[RUN]     Testing no_server_test"
 	$(Q) $(BINDIR)/$(CONFIG)/no_server_test || ( echo test no_server_test failed ; exit 1 )
+	$(E) "[RUN]     Testing percent_encoding_test"
+	$(Q) $(BINDIR)/$(CONFIG)/percent_encoding_test || ( echo test percent_encoding_test failed ; exit 1 )
 	$(E) "[RUN]     Testing resolve_address_test"
 	$(Q) $(BINDIR)/$(CONFIG)/resolve_address_test || ( echo test resolve_address_test failed ; exit 1 )
 	$(E) "[RUN]     Testing resource_quota_test"
@@ -1740,6 +1738,12 @@
 	$(Q) $(BINDIR)/$(CONFIG)/server_test || ( echo test server_test failed ; exit 1 )
 	$(E) "[RUN]     Testing set_initial_connect_string_test"
 	$(Q) $(BINDIR)/$(CONFIG)/set_initial_connect_string_test || ( echo test set_initial_connect_string_test failed ; exit 1 )
+	$(E) "[RUN]     Testing slice_buffer_test"
+	$(Q) $(BINDIR)/$(CONFIG)/slice_buffer_test || ( echo test slice_buffer_test failed ; exit 1 )
+	$(E) "[RUN]     Testing slice_string_helpers_test"
+	$(Q) $(BINDIR)/$(CONFIG)/slice_string_helpers_test || ( echo test slice_string_helpers_test failed ; exit 1 )
+	$(E) "[RUN]     Testing slice_test"
+	$(Q) $(BINDIR)/$(CONFIG)/slice_test || ( echo test slice_test failed ; exit 1 )
 	$(E) "[RUN]     Testing sockaddr_resolver_test"
 	$(Q) $(BINDIR)/$(CONFIG)/sockaddr_resolver_test || ( echo test sockaddr_resolver_test failed ; exit 1 )
 	$(E) "[RUN]     Testing sockaddr_utils_test"
@@ -2463,9 +2467,6 @@
     src/core/lib/support/log_windows.c \
     src/core/lib/support/mpscq.c \
     src/core/lib/support/murmur_hash.c \
-    src/core/lib/support/percent_encoding.c \
-    src/core/lib/support/slice.c \
-    src/core/lib/support/slice_buffer.c \
     src/core/lib/support/stack_lockfree.c \
     src/core/lib/support/string.c \
     src/core/lib/support/string_posix.c \
@@ -2503,8 +2504,6 @@
     include/grpc/support/log.h \
     include/grpc/support/log_windows.h \
     include/grpc/support/port_platform.h \
-    include/grpc/support/slice.h \
-    include/grpc/support/slice_buffer.h \
     include/grpc/support/string_util.h \
     include/grpc/support/subprocess.h \
     include/grpc/support/sync.h \
@@ -2673,6 +2672,10 @@
     src/core/lib/json/json_reader.c \
     src/core/lib/json/json_string.c \
     src/core/lib/json/json_writer.c \
+    src/core/lib/slice/percent_encoding.c \
+    src/core/lib/slice/slice.c \
+    src/core/lib/slice/slice_buffer.c \
+    src/core/lib/slice/slice_string_helpers.c \
     src/core/lib/surface/alarm.c \
     src/core/lib/surface/api_trace.c \
     src/core/lib/surface/byte_buffer.c \
@@ -2810,6 +2813,8 @@
     include/grpc/grpc.h \
     include/grpc/grpc_posix.h \
     include/grpc/grpc_security_constants.h \
+    include/grpc/slice.h \
+    include/grpc/slice_buffer.h \
     include/grpc/status.h \
     include/grpc/impl/codegen/byte_buffer_reader.h \
     include/grpc/impl/codegen/compression_types.h \
@@ -2964,6 +2969,10 @@
     src/core/lib/json/json_reader.c \
     src/core/lib/json/json_string.c \
     src/core/lib/json/json_writer.c \
+    src/core/lib/slice/percent_encoding.c \
+    src/core/lib/slice/slice.c \
+    src/core/lib/slice/slice_buffer.c \
+    src/core/lib/slice/slice_string_helpers.c \
     src/core/lib/surface/alarm.c \
     src/core/lib/surface/api_trace.c \
     src/core/lib/surface/byte_buffer.c \
@@ -3073,6 +3082,8 @@
     include/grpc/grpc.h \
     include/grpc/grpc_posix.h \
     include/grpc/grpc_security_constants.h \
+    include/grpc/slice.h \
+    include/grpc/slice_buffer.h \
     include/grpc/status.h \
     include/grpc/impl/codegen/byte_buffer_reader.h \
     include/grpc/impl/codegen/compression_types.h \
@@ -3246,6 +3257,10 @@
     src/core/lib/json/json_reader.c \
     src/core/lib/json/json_string.c \
     src/core/lib/json/json_writer.c \
+    src/core/lib/slice/percent_encoding.c \
+    src/core/lib/slice/slice.c \
+    src/core/lib/slice/slice_buffer.c \
+    src/core/lib/slice/slice_string_helpers.c \
     src/core/lib/surface/alarm.c \
     src/core/lib/surface/api_trace.c \
     src/core/lib/surface/byte_buffer.c \
@@ -3283,6 +3298,8 @@
     include/grpc/grpc.h \
     include/grpc/grpc_posix.h \
     include/grpc/grpc_security_constants.h \
+    include/grpc/slice.h \
+    include/grpc/slice_buffer.h \
     include/grpc/status.h \
     include/grpc/impl/codegen/byte_buffer_reader.h \
     include/grpc/impl/codegen/compression_types.h \
@@ -3457,6 +3474,10 @@
     src/core/lib/json/json_reader.c \
     src/core/lib/json/json_string.c \
     src/core/lib/json/json_writer.c \
+    src/core/lib/slice/percent_encoding.c \
+    src/core/lib/slice/slice.c \
+    src/core/lib/slice/slice_buffer.c \
+    src/core/lib/slice/slice_string_helpers.c \
     src/core/lib/surface/alarm.c \
     src/core/lib/surface/api_trace.c \
     src/core/lib/surface/byte_buffer.c \
@@ -3565,6 +3586,8 @@
     include/grpc/grpc.h \
     include/grpc/grpc_posix.h \
     include/grpc/grpc_security_constants.h \
+    include/grpc/slice.h \
+    include/grpc/slice_buffer.h \
     include/grpc/status.h \
     include/grpc/impl/codegen/byte_buffer_reader.h \
     include/grpc/impl/codegen/compression_types.h \
@@ -8515,102 +8538,6 @@
 endif
 
 
-GPR_PERCENT_ENCODING_TEST_SRC = \
-    test/core/support/percent_encoding_test.c \
-
-GPR_PERCENT_ENCODING_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(GPR_PERCENT_ENCODING_TEST_SRC))))
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL.
-
-$(BINDIR)/$(CONFIG)/gpr_percent_encoding_test: openssl_dep_error
-
-else
-
-
-
-$(BINDIR)/$(CONFIG)/gpr_percent_encoding_test: $(GPR_PERCENT_ENCODING_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(GPR_PERCENT_ENCODING_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/gpr_percent_encoding_test
-
-endif
-
-$(OBJDIR)/$(CONFIG)/test/core/support/percent_encoding_test.o:  $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_gpr_percent_encoding_test: $(GPR_PERCENT_ENCODING_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(GPR_PERCENT_ENCODING_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
-GPR_SLICE_BUFFER_TEST_SRC = \
-    test/core/support/slice_buffer_test.c \
-
-GPR_SLICE_BUFFER_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(GPR_SLICE_BUFFER_TEST_SRC))))
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL.
-
-$(BINDIR)/$(CONFIG)/gpr_slice_buffer_test: openssl_dep_error
-
-else
-
-
-
-$(BINDIR)/$(CONFIG)/gpr_slice_buffer_test: $(GPR_SLICE_BUFFER_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(GPR_SLICE_BUFFER_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/gpr_slice_buffer_test
-
-endif
-
-$(OBJDIR)/$(CONFIG)/test/core/support/slice_buffer_test.o:  $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_gpr_slice_buffer_test: $(GPR_SLICE_BUFFER_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(GPR_SLICE_BUFFER_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
-GPR_SLICE_TEST_SRC = \
-    test/core/support/slice_test.c \
-
-GPR_SLICE_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(GPR_SLICE_TEST_SRC))))
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL.
-
-$(BINDIR)/$(CONFIG)/gpr_slice_test: openssl_dep_error
-
-else
-
-
-
-$(BINDIR)/$(CONFIG)/gpr_slice_test: $(GPR_SLICE_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(GPR_SLICE_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/gpr_slice_test
-
-endif
-
-$(OBJDIR)/$(CONFIG)/test/core/support/slice_test.o:  $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_gpr_slice_test: $(GPR_SLICE_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(GPR_SLICE_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
 GPR_STACK_LOCKFREE_TEST_SRC = \
     test/core/support/stack_lockfree_test.c \
 
@@ -10340,7 +10267,7 @@
 
 
 PERCENT_DECODE_FUZZER_SRC = \
-    test/core/support/percent_decode_fuzzer.c \
+    test/core/slice/percent_decode_fuzzer.c \
 
 PERCENT_DECODE_FUZZER_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(PERCENT_DECODE_FUZZER_SRC))))
 ifeq ($(NO_SECURE),true)
@@ -10360,7 +10287,7 @@
 
 endif
 
-$(OBJDIR)/$(CONFIG)/test/core/support/percent_decode_fuzzer.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(OBJDIR)/$(CONFIG)/test/core/slice/percent_decode_fuzzer.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 
 deps_percent_decode_fuzzer: $(PERCENT_DECODE_FUZZER_OBJS:.o=.dep)
 
@@ -10372,7 +10299,7 @@
 
 
 PERCENT_ENCODE_FUZZER_SRC = \
-    test/core/support/percent_encode_fuzzer.c \
+    test/core/slice/percent_encode_fuzzer.c \
 
 PERCENT_ENCODE_FUZZER_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(PERCENT_ENCODE_FUZZER_SRC))))
 ifeq ($(NO_SECURE),true)
@@ -10392,7 +10319,7 @@
 
 endif
 
-$(OBJDIR)/$(CONFIG)/test/core/support/percent_encode_fuzzer.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(OBJDIR)/$(CONFIG)/test/core/slice/percent_encode_fuzzer.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 
 deps_percent_encode_fuzzer: $(PERCENT_ENCODE_FUZZER_OBJS:.o=.dep)
 
@@ -10403,6 +10330,38 @@
 endif
 
 
+PERCENT_ENCODING_TEST_SRC = \
+    test/core/slice/percent_encoding_test.c \
+
+PERCENT_ENCODING_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(PERCENT_ENCODING_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/percent_encoding_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/percent_encoding_test: $(PERCENT_ENCODING_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(PERCENT_ENCODING_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/percent_encoding_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/slice/percent_encoding_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_percent_encoding_test: $(PERCENT_ENCODING_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(PERCENT_ENCODING_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 RESOLVE_ADDRESS_TEST_SRC = \
     test/core/iomgr/resolve_address_test.c \
 
@@ -10691,6 +10650,102 @@
 endif
 
 
+SLICE_BUFFER_TEST_SRC = \
+    test/core/slice/slice_buffer_test.c \
+
+SLICE_BUFFER_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(SLICE_BUFFER_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/slice_buffer_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/slice_buffer_test: $(SLICE_BUFFER_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(SLICE_BUFFER_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/slice_buffer_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/slice/slice_buffer_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_slice_buffer_test: $(SLICE_BUFFER_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(SLICE_BUFFER_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
+SLICE_STRING_HELPERS_TEST_SRC = \
+    test/core/slice/slice_string_helpers_test.c \
+
+SLICE_STRING_HELPERS_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(SLICE_STRING_HELPERS_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/slice_string_helpers_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/slice_string_helpers_test: $(SLICE_STRING_HELPERS_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(SLICE_STRING_HELPERS_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/slice_string_helpers_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/slice/slice_string_helpers_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_slice_string_helpers_test: $(SLICE_STRING_HELPERS_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(SLICE_STRING_HELPERS_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
+SLICE_TEST_SRC = \
+    test/core/slice/slice_test.c \
+
+SLICE_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(SLICE_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/slice_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/slice_test: $(SLICE_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(SLICE_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/slice_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/slice/slice_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_slice_test: $(SLICE_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(SLICE_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 SOCKADDR_RESOLVER_TEST_SRC = \
     test/core/client_channel/resolvers/sockaddr_resolver_test.c \
 
@@ -16161,7 +16216,7 @@
 
 
 PERCENT_DECODE_FUZZER_ONE_ENTRY_SRC = \
-    test/core/support/percent_decode_fuzzer.c \
+    test/core/slice/percent_decode_fuzzer.c \
     test/core/util/one_corpus_entry_fuzzer.c \
 
 PERCENT_DECODE_FUZZER_ONE_ENTRY_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(PERCENT_DECODE_FUZZER_ONE_ENTRY_SRC))))
@@ -16182,7 +16237,7 @@
 
 endif
 
-$(OBJDIR)/$(CONFIG)/test/core/support/percent_decode_fuzzer.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(OBJDIR)/$(CONFIG)/test/core/slice/percent_decode_fuzzer.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 
 $(OBJDIR)/$(CONFIG)/test/core/util/one_corpus_entry_fuzzer.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 
@@ -16196,7 +16251,7 @@
 
 
 PERCENT_ENCODE_FUZZER_ONE_ENTRY_SRC = \
-    test/core/support/percent_encode_fuzzer.c \
+    test/core/slice/percent_encode_fuzzer.c \
     test/core/util/one_corpus_entry_fuzzer.c \
 
 PERCENT_ENCODE_FUZZER_ONE_ENTRY_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(PERCENT_ENCODE_FUZZER_ONE_ENTRY_SRC))))
@@ -16217,7 +16272,7 @@
 
 endif
 
-$(OBJDIR)/$(CONFIG)/test/core/support/percent_encode_fuzzer.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(OBJDIR)/$(CONFIG)/test/core/slice/percent_encode_fuzzer.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 
 $(OBJDIR)/$(CONFIG)/test/core/util/one_corpus_entry_fuzzer.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 
diff --git a/binding.gyp b/binding.gyp
index bb215c4..ba90fca 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -520,9 +520,6 @@
         'src/core/lib/support/log_windows.c',
         'src/core/lib/support/mpscq.c',
         'src/core/lib/support/murmur_hash.c',
-        'src/core/lib/support/percent_encoding.c',
-        'src/core/lib/support/slice.c',
-        'src/core/lib/support/slice_buffer.c',
         'src/core/lib/support/stack_lockfree.c',
         'src/core/lib/support/string.c',
         'src/core/lib/support/string_posix.c',
@@ -647,6 +644,10 @@
         'src/core/lib/json/json_reader.c',
         'src/core/lib/json/json_string.c',
         'src/core/lib/json/json_writer.c',
+        'src/core/lib/slice/percent_encoding.c',
+        'src/core/lib/slice/slice.c',
+        'src/core/lib/slice/slice_buffer.c',
+        'src/core/lib/slice/slice_string_helpers.c',
         'src/core/lib/surface/alarm.c',
         'src/core/lib/surface/api_trace.c',
         'src/core/lib/surface/byte_buffer.c',
diff --git a/build.yaml b/build.yaml
index d7440fe..9a22f4c 100644
--- a/build.yaml
+++ b/build.yaml
@@ -64,8 +64,6 @@
   - include/grpc/support/log.h
   - include/grpc/support/log_windows.h
   - include/grpc/support/port_platform.h
-  - include/grpc/support/slice.h
-  - include/grpc/support/slice_buffer.h
   - include/grpc/support/string_util.h
   - include/grpc/support/subprocess.h
   - include/grpc/support/sync.h
@@ -86,7 +84,6 @@
   - src/core/lib/support/env.h
   - src/core/lib/support/mpscq.h
   - src/core/lib/support/murmur_hash.h
-  - src/core/lib/support/percent_encoding.h
   - src/core/lib/support/stack_lockfree.h
   - src/core/lib/support/string.h
   - src/core/lib/support/string_windows.h
@@ -116,9 +113,6 @@
   - src/core/lib/support/log_windows.c
   - src/core/lib/support/mpscq.c
   - src/core/lib/support/murmur_hash.c
-  - src/core/lib/support/percent_encoding.c
-  - src/core/lib/support/slice.c
-  - src/core/lib/support/slice_buffer.c
   - src/core/lib/support/stack_lockfree.c
   - src/core/lib/support/string.c
   - src/core/lib/support/string_posix.c
@@ -164,6 +158,8 @@
   - include/grpc/grpc.h
   - include/grpc/grpc_posix.h
   - include/grpc/grpc_security_constants.h
+  - include/grpc/slice.h
+  - include/grpc/slice_buffer.h
   - include/grpc/status.h
   headers:
   - src/core/lib/channel/channel_args.h
@@ -239,6 +235,8 @@
   - src/core/lib/json/json_common.h
   - src/core/lib/json/json_reader.h
   - src/core/lib/json/json_writer.h
+  - src/core/lib/slice/percent_encoding.h
+  - src/core/lib/slice/slice_string_helpers.h
   - src/core/lib/surface/api_trace.h
   - src/core/lib/surface/call.h
   - src/core/lib/surface/call_test_only.h
@@ -341,6 +339,10 @@
   - src/core/lib/json/json_reader.c
   - src/core/lib/json/json_string.c
   - src/core/lib/json/json_writer.c
+  - src/core/lib/slice/percent_encoding.c
+  - src/core/lib/slice/slice.c
+  - src/core/lib/slice/slice_buffer.c
+  - src/core/lib/slice/slice_string_helpers.c
   - src/core/lib/surface/alarm.c
   - src/core/lib/surface/api_trace.c
   - src/core/lib/surface/byte_buffer.c
@@ -1792,30 +1794,6 @@
   deps:
   - gpr_test_util
   - gpr
-- name: gpr_percent_encoding_test
-  build: test
-  language: c
-  src:
-  - test/core/support/percent_encoding_test.c
-  deps:
-  - gpr_test_util
-  - gpr
-- name: gpr_slice_buffer_test
-  build: test
-  language: c
-  src:
-  - test/core/support/slice_buffer_test.c
-  deps:
-  - gpr_test_util
-  - gpr
-- name: gpr_slice_test
-  build: test
-  language: c
-  src:
-  - test/core/support/slice_test.c
-  deps:
-  - gpr_test_util
-  - gpr
 - name: gpr_stack_lockfree_test
   cpu_cost: 7
   build: test
@@ -2393,28 +2371,38 @@
   build: fuzzer
   language: c
   src:
-  - test/core/support/percent_decode_fuzzer.c
+  - test/core/slice/percent_decode_fuzzer.c
   deps:
   - grpc_test_util
   - grpc
   - gpr_test_util
   - gpr
   corpus_dirs:
-  - test/core/support/percent_decode_corpus
+  - test/core/slice/percent_decode_corpus
   maxlen: 32
 - name: percent_encode_fuzzer
   build: fuzzer
   language: c
   src:
-  - test/core/support/percent_encode_fuzzer.c
+  - test/core/slice/percent_encode_fuzzer.c
   deps:
   - grpc_test_util
   - grpc
   - gpr_test_util
   - gpr
   corpus_dirs:
-  - test/core/support/percent_encode_corpus
+  - test/core/slice/percent_encode_corpus
   maxlen: 32
+- name: percent_encoding_test
+  build: test
+  language: c
+  src:
+  - test/core/slice/percent_encoding_test.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
 - name: resolve_address_test
   build: test
   language: c
@@ -2520,6 +2508,36 @@
   - gpr
   exclude_iomgrs:
   - uv
+- name: slice_buffer_test
+  build: test
+  language: c
+  src:
+  - test/core/slice/slice_buffer_test.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
+- name: slice_string_helpers_test
+  build: test
+  language: c
+  src:
+  - test/core/slice/slice_string_helpers_test.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
+- name: slice_test
+  build: test
+  language: c
+  src:
+  - test/core/slice/slice_test.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
 - name: sockaddr_resolver_test
   build: test
   language: c
diff --git a/config.m4 b/config.m4
index 09aaac6..988cc5b 100644
--- a/config.m4
+++ b/config.m4
@@ -58,9 +58,6 @@
     src/core/lib/support/log_windows.c \
     src/core/lib/support/mpscq.c \
     src/core/lib/support/murmur_hash.c \
-    src/core/lib/support/percent_encoding.c \
-    src/core/lib/support/slice.c \
-    src/core/lib/support/slice_buffer.c \
     src/core/lib/support/stack_lockfree.c \
     src/core/lib/support/string.c \
     src/core/lib/support/string_posix.c \
@@ -163,6 +160,10 @@
     src/core/lib/json/json_reader.c \
     src/core/lib/json/json_string.c \
     src/core/lib/json/json_writer.c \
+    src/core/lib/slice/percent_encoding.c \
+    src/core/lib/slice/slice.c \
+    src/core/lib/slice/slice_buffer.c \
+    src/core/lib/slice/slice_string_helpers.c \
     src/core/lib/surface/alarm.c \
     src/core/lib/surface/api_trace.c \
     src/core/lib/surface/byte_buffer.c \
@@ -632,6 +633,7 @@
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/security/credentials/ssl)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/security/transport)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/security/util)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/slice)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/support)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/surface)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/transport)
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index 706d7af..8708cdb 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -129,8 +129,6 @@
                       'include/grpc/support/log.h',
                       'include/grpc/support/log_windows.h',
                       'include/grpc/support/port_platform.h',
-                      'include/grpc/support/slice.h',
-                      'include/grpc/support/slice_buffer.h',
                       'include/grpc/support/string_util.h',
                       'include/grpc/support/subprocess.h',
                       'include/grpc/support/sync.h',
@@ -161,6 +159,8 @@
                       'include/grpc/grpc.h',
                       'include/grpc/grpc_posix.h',
                       'include/grpc/grpc_security_constants.h',
+                      'include/grpc/slice.h',
+                      'include/grpc/slice_buffer.h',
                       'include/grpc/status.h',
                       'include/grpc/impl/codegen/byte_buffer_reader.h',
                       'include/grpc/impl/codegen/compression_types.h',
@@ -195,7 +195,6 @@
                       'src/core/lib/support/env.h',
                       'src/core/lib/support/mpscq.h',
                       'src/core/lib/support/murmur_hash.h',
-                      'src/core/lib/support/percent_encoding.h',
                       'src/core/lib/support/stack_lockfree.h',
                       'src/core/lib/support/string.h',
                       'src/core/lib/support/string_windows.h',
@@ -224,9 +223,6 @@
                       'src/core/lib/support/log_windows.c',
                       'src/core/lib/support/mpscq.c',
                       'src/core/lib/support/murmur_hash.c',
-                      'src/core/lib/support/percent_encoding.c',
-                      'src/core/lib/support/slice.c',
-                      'src/core/lib/support/slice_buffer.c',
                       'src/core/lib/support/stack_lockfree.c',
                       'src/core/lib/support/string.c',
                       'src/core/lib/support/string_posix.c',
@@ -322,6 +318,8 @@
                       'src/core/lib/json/json_common.h',
                       'src/core/lib/json/json_reader.h',
                       'src/core/lib/json/json_writer.h',
+                      'src/core/lib/slice/percent_encoding.h',
+                      'src/core/lib/slice/slice_string_helpers.h',
                       'src/core/lib/surface/api_trace.h',
                       'src/core/lib/surface/call.h',
                       'src/core/lib/surface/call_test_only.h',
@@ -504,6 +502,10 @@
                       'src/core/lib/json/json_reader.c',
                       'src/core/lib/json/json_string.c',
                       'src/core/lib/json/json_writer.c',
+                      'src/core/lib/slice/percent_encoding.c',
+                      'src/core/lib/slice/slice.c',
+                      'src/core/lib/slice/slice_buffer.c',
+                      'src/core/lib/slice/slice_string_helpers.c',
                       'src/core/lib/surface/alarm.c',
                       'src/core/lib/surface/api_trace.c',
                       'src/core/lib/surface/byte_buffer.c',
@@ -640,7 +642,6 @@
                               'src/core/lib/support/env.h',
                               'src/core/lib/support/mpscq.h',
                               'src/core/lib/support/murmur_hash.h',
-                              'src/core/lib/support/percent_encoding.h',
                               'src/core/lib/support/stack_lockfree.h',
                               'src/core/lib/support/string.h',
                               'src/core/lib/support/string_windows.h',
@@ -720,6 +721,8 @@
                               'src/core/lib/json/json_common.h',
                               'src/core/lib/json/json_reader.h',
                               'src/core/lib/json/json_writer.h',
+                              'src/core/lib/slice/percent_encoding.h',
+                              'src/core/lib/slice/slice_string_helpers.h',
                               'src/core/lib/surface/api_trace.h',
                               'src/core/lib/surface/call.h',
                               'src/core/lib/surface/call_test_only.h',
diff --git a/grpc.def b/grpc.def
index 0b6db80..1abb9a7 100644
--- a/grpc.def
+++ b/grpc.def
@@ -134,6 +134,35 @@
     grpc_server_add_secure_http2_port
     grpc_call_set_credentials
     grpc_server_credentials_set_auth_metadata_processor
+    grpc_slice_ref
+    grpc_slice_unref
+    grpc_slice_new
+    grpc_slice_new_with_user_data
+    grpc_slice_new_with_len
+    grpc_slice_malloc
+    grpc_slice_from_copied_string
+    grpc_slice_from_copied_buffer
+    grpc_slice_from_static_string
+    grpc_slice_sub
+    grpc_slice_sub_no_ref
+    grpc_slice_split_tail
+    grpc_slice_split_head
+    gpr_empty_slice
+    grpc_slice_cmp
+    grpc_slice_str_cmp
+    grpc_slice_buffer_init
+    grpc_slice_buffer_destroy
+    grpc_slice_buffer_add
+    grpc_slice_buffer_add_indexed
+    grpc_slice_buffer_addn
+    grpc_slice_buffer_tiny_add
+    grpc_slice_buffer_pop
+    grpc_slice_buffer_reset_and_unref
+    grpc_slice_buffer_swap
+    grpc_slice_buffer_move_into
+    grpc_slice_buffer_trim_end
+    grpc_slice_buffer_move_first
+    grpc_slice_buffer_take_first
     gpr_malloc
     gpr_free
     gpr_realloc
@@ -183,35 +212,6 @@
     gpr_log_verbosity_init
     gpr_set_log_function
     gpr_format_message
-    gpr_slice_ref
-    gpr_slice_unref
-    gpr_slice_new
-    gpr_slice_new_with_user_data
-    gpr_slice_new_with_len
-    gpr_slice_malloc
-    gpr_slice_from_copied_string
-    gpr_slice_from_copied_buffer
-    gpr_slice_from_static_string
-    gpr_slice_sub
-    gpr_slice_sub_no_ref
-    gpr_slice_split_tail
-    gpr_slice_split_head
-    gpr_empty_slice
-    gpr_slice_cmp
-    gpr_slice_str_cmp
-    gpr_slice_buffer_init
-    gpr_slice_buffer_destroy
-    gpr_slice_buffer_add
-    gpr_slice_buffer_add_indexed
-    gpr_slice_buffer_addn
-    gpr_slice_buffer_tiny_add
-    gpr_slice_buffer_pop
-    gpr_slice_buffer_reset_and_unref
-    gpr_slice_buffer_swap
-    gpr_slice_buffer_move_into
-    gpr_slice_buffer_trim_end
-    gpr_slice_buffer_move_first
-    gpr_slice_buffer_take_first
     gpr_strdup
     gpr_asprintf
     gpr_subprocess_binary_extension
diff --git a/grpc.gemspec b/grpc.gemspec
index f4919bf..b071fcc 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -57,8 +57,6 @@
   s.files += %w( include/grpc/support/log.h )
   s.files += %w( include/grpc/support/log_windows.h )
   s.files += %w( include/grpc/support/port_platform.h )
-  s.files += %w( include/grpc/support/slice.h )
-  s.files += %w( include/grpc/support/slice_buffer.h )
   s.files += %w( include/grpc/support/string_util.h )
   s.files += %w( include/grpc/support/subprocess.h )
   s.files += %w( include/grpc/support/sync.h )
@@ -89,7 +87,6 @@
   s.files += %w( src/core/lib/support/env.h )
   s.files += %w( src/core/lib/support/mpscq.h )
   s.files += %w( src/core/lib/support/murmur_hash.h )
-  s.files += %w( src/core/lib/support/percent_encoding.h )
   s.files += %w( src/core/lib/support/stack_lockfree.h )
   s.files += %w( src/core/lib/support/string.h )
   s.files += %w( src/core/lib/support/string_windows.h )
@@ -118,9 +115,6 @@
   s.files += %w( src/core/lib/support/log_windows.c )
   s.files += %w( src/core/lib/support/mpscq.c )
   s.files += %w( src/core/lib/support/murmur_hash.c )
-  s.files += %w( src/core/lib/support/percent_encoding.c )
-  s.files += %w( src/core/lib/support/slice.c )
-  s.files += %w( src/core/lib/support/slice_buffer.c )
   s.files += %w( src/core/lib/support/stack_lockfree.c )
   s.files += %w( src/core/lib/support/string.c )
   s.files += %w( src/core/lib/support/string_posix.c )
@@ -149,6 +143,8 @@
   s.files += %w( include/grpc/grpc.h )
   s.files += %w( include/grpc/grpc_posix.h )
   s.files += %w( include/grpc/grpc_security_constants.h )
+  s.files += %w( include/grpc/slice.h )
+  s.files += %w( include/grpc/slice_buffer.h )
   s.files += %w( include/grpc/status.h )
   s.files += %w( include/grpc/impl/codegen/byte_buffer_reader.h )
   s.files += %w( include/grpc/impl/codegen/compression_types.h )
@@ -242,6 +238,8 @@
   s.files += %w( src/core/lib/json/json_common.h )
   s.files += %w( src/core/lib/json/json_reader.h )
   s.files += %w( src/core/lib/json/json_writer.h )
+  s.files += %w( src/core/lib/slice/percent_encoding.h )
+  s.files += %w( src/core/lib/slice/slice_string_helpers.h )
   s.files += %w( src/core/lib/surface/api_trace.h )
   s.files += %w( src/core/lib/surface/call.h )
   s.files += %w( src/core/lib/surface/call_test_only.h )
@@ -424,6 +422,10 @@
   s.files += %w( src/core/lib/json/json_reader.c )
   s.files += %w( src/core/lib/json/json_string.c )
   s.files += %w( src/core/lib/json/json_writer.c )
+  s.files += %w( src/core/lib/slice/percent_encoding.c )
+  s.files += %w( src/core/lib/slice/slice.c )
+  s.files += %w( src/core/lib/slice/slice_buffer.c )
+  s.files += %w( src/core/lib/slice/slice_string_helpers.c )
   s.files += %w( src/core/lib/surface/alarm.c )
   s.files += %w( src/core/lib/surface/api_trace.c )
   s.files += %w( src/core/lib/surface/byte_buffer.c )
diff --git a/include/grpc++/impl/codegen/core_codegen.h b/include/grpc++/impl/codegen/core_codegen.h
index aff88ff..6b5e637 100644
--- a/include/grpc++/impl/codegen/core_codegen.h
+++ b/include/grpc++/impl/codegen/core_codegen.h
@@ -71,16 +71,16 @@
   void grpc_byte_buffer_reader_destroy(
       grpc_byte_buffer_reader* reader) override;
   int grpc_byte_buffer_reader_next(grpc_byte_buffer_reader* reader,
-                                   gpr_slice* slice) override;
+                                   grpc_slice* slice) override;
 
-  grpc_byte_buffer* grpc_raw_byte_buffer_create(gpr_slice* slice,
+  grpc_byte_buffer* grpc_raw_byte_buffer_create(grpc_slice* slice,
                                                 size_t nslices) override;
 
-  gpr_slice gpr_slice_malloc(size_t length) override;
-  void gpr_slice_unref(gpr_slice slice) override;
-  gpr_slice gpr_slice_split_tail(gpr_slice* s, size_t split) override;
-  void gpr_slice_buffer_add(gpr_slice_buffer* sb, gpr_slice slice) override;
-  void gpr_slice_buffer_pop(gpr_slice_buffer* sb) override;
+  grpc_slice grpc_slice_malloc(size_t length) override;
+  void grpc_slice_unref(grpc_slice slice) override;
+  grpc_slice grpc_slice_split_tail(grpc_slice* s, size_t split) override;
+  void grpc_slice_buffer_add(grpc_slice_buffer* sb, grpc_slice slice) override;
+  void grpc_slice_buffer_pop(grpc_slice_buffer* sb) override;
 
   void grpc_metadata_array_init(grpc_metadata_array* array) override;
   void grpc_metadata_array_destroy(grpc_metadata_array* array) override;
diff --git a/include/grpc++/impl/codegen/core_codegen_interface.h b/include/grpc++/impl/codegen/core_codegen_interface.h
index 68851f1..4783a43 100644
--- a/include/grpc++/impl/codegen/core_codegen_interface.h
+++ b/include/grpc++/impl/codegen/core_codegen_interface.h
@@ -88,16 +88,17 @@
   virtual void grpc_byte_buffer_reader_destroy(
       grpc_byte_buffer_reader* reader) = 0;
   virtual int grpc_byte_buffer_reader_next(grpc_byte_buffer_reader* reader,
-                                           gpr_slice* slice) = 0;
+                                           grpc_slice* slice) = 0;
 
-  virtual grpc_byte_buffer* grpc_raw_byte_buffer_create(gpr_slice* slice,
+  virtual grpc_byte_buffer* grpc_raw_byte_buffer_create(grpc_slice* slice,
                                                         size_t nslices) = 0;
 
-  virtual gpr_slice gpr_slice_malloc(size_t length) = 0;
-  virtual void gpr_slice_unref(gpr_slice slice) = 0;
-  virtual gpr_slice gpr_slice_split_tail(gpr_slice* s, size_t split) = 0;
-  virtual void gpr_slice_buffer_add(gpr_slice_buffer* sb, gpr_slice slice) = 0;
-  virtual void gpr_slice_buffer_pop(gpr_slice_buffer* sb) = 0;
+  virtual grpc_slice grpc_slice_malloc(size_t length) = 0;
+  virtual void grpc_slice_unref(grpc_slice slice) = 0;
+  virtual grpc_slice grpc_slice_split_tail(grpc_slice* s, size_t split) = 0;
+  virtual void grpc_slice_buffer_add(grpc_slice_buffer* sb,
+                                     grpc_slice slice) = 0;
+  virtual void grpc_slice_buffer_pop(grpc_slice_buffer* sb) = 0;
 
   virtual void grpc_metadata_array_init(grpc_metadata_array* array) = 0;
   virtual void grpc_metadata_array_destroy(grpc_metadata_array* array) = 0;
diff --git a/include/grpc++/impl/codegen/proto_utils.h b/include/grpc++/impl/codegen/proto_utils.h
index cbaa3e7..2f15487 100644
--- a/include/grpc++/impl/codegen/proto_utils.h
+++ b/include/grpc++/impl/codegen/proto_utils.h
@@ -63,7 +63,7 @@
 
   ~GrpcBufferWriter() override {
     if (have_backup_) {
-      g_core_codegen_interface->gpr_slice_unref(backup_slice_);
+      g_core_codegen_interface->grpc_slice_unref(backup_slice_);
     }
   }
 
@@ -72,24 +72,24 @@
       slice_ = backup_slice_;
       have_backup_ = false;
     } else {
-      slice_ = g_core_codegen_interface->gpr_slice_malloc(block_size_);
+      slice_ = g_core_codegen_interface->grpc_slice_malloc(block_size_);
     }
-    *data = GPR_SLICE_START_PTR(slice_);
+    *data = GRPC_SLICE_START_PTR(slice_);
     // On win x64, int is only 32bit
-    GPR_CODEGEN_ASSERT(GPR_SLICE_LENGTH(slice_) <= INT_MAX);
-    byte_count_ += * size = (int)GPR_SLICE_LENGTH(slice_);
-    g_core_codegen_interface->gpr_slice_buffer_add(slice_buffer_, slice_);
+    GPR_CODEGEN_ASSERT(GRPC_SLICE_LENGTH(slice_) <= INT_MAX);
+    byte_count_ += * size = (int)GRPC_SLICE_LENGTH(slice_);
+    g_core_codegen_interface->grpc_slice_buffer_add(slice_buffer_, slice_);
     return true;
   }
 
   void BackUp(int count) override {
-    g_core_codegen_interface->gpr_slice_buffer_pop(slice_buffer_);
+    g_core_codegen_interface->grpc_slice_buffer_pop(slice_buffer_);
     if (count == block_size_) {
       backup_slice_ = slice_;
     } else {
-      backup_slice_ = g_core_codegen_interface->gpr_slice_split_tail(
-          &slice_, GPR_SLICE_LENGTH(slice_) - count);
-      g_core_codegen_interface->gpr_slice_buffer_add(slice_buffer_, slice_);
+      backup_slice_ = g_core_codegen_interface->grpc_slice_split_tail(
+          &slice_, GRPC_SLICE_LENGTH(slice_) - count);
+      g_core_codegen_interface->grpc_slice_buffer_add(slice_buffer_, slice_);
     }
     have_backup_ = true;
     byte_count_ -= count;
@@ -100,10 +100,10 @@
  private:
   const int block_size_;
   int64_t byte_count_;
-  gpr_slice_buffer* slice_buffer_;
+  grpc_slice_buffer* slice_buffer_;
   bool have_backup_;
-  gpr_slice backup_slice_;
-  gpr_slice slice_;
+  grpc_slice backup_slice_;
+  grpc_slice slice_;
 };
 
 class GrpcBufferReader final
@@ -126,7 +126,7 @@
       return false;
     }
     if (backup_count_ > 0) {
-      *data = GPR_SLICE_START_PTR(slice_) + GPR_SLICE_LENGTH(slice_) -
+      *data = GRPC_SLICE_START_PTR(slice_) + GRPC_SLICE_LENGTH(slice_) -
               backup_count_;
       GPR_CODEGEN_ASSERT(backup_count_ <= INT_MAX);
       *size = (int)backup_count_;
@@ -137,11 +137,11 @@
                                                                 &slice_)) {
       return false;
     }
-    g_core_codegen_interface->gpr_slice_unref(slice_);
-    *data = GPR_SLICE_START_PTR(slice_);
+    g_core_codegen_interface->grpc_slice_unref(slice_);
+    *data = GRPC_SLICE_START_PTR(slice_);
     // On win x64, int is only 32bit
-    GPR_CODEGEN_ASSERT(GPR_SLICE_LENGTH(slice_) <= INT_MAX);
-    byte_count_ += * size = (int)GPR_SLICE_LENGTH(slice_);
+    GPR_CODEGEN_ASSERT(GRPC_SLICE_LENGTH(slice_) <= INT_MAX);
+    byte_count_ += * size = (int)GRPC_SLICE_LENGTH(slice_);
     return true;
   }
 
@@ -172,7 +172,7 @@
   int64_t byte_count_;
   int64_t backup_count_;
   grpc_byte_buffer_reader reader_;
-  gpr_slice slice_;
+  grpc_slice slice_;
   Status status_;
 };
 }  // namespace internal
@@ -186,12 +186,12 @@
     *own_buffer = true;
     int byte_size = msg.ByteSize();
     if (byte_size <= internal::kGrpcBufferWriterMaxBufferLength) {
-      gpr_slice slice = g_core_codegen_interface->gpr_slice_malloc(byte_size);
+      grpc_slice slice = g_core_codegen_interface->grpc_slice_malloc(byte_size);
       GPR_CODEGEN_ASSERT(
-          GPR_SLICE_END_PTR(slice) ==
-          msg.SerializeWithCachedSizesToArray(GPR_SLICE_START_PTR(slice)));
+          GRPC_SLICE_END_PTR(slice) ==
+          msg.SerializeWithCachedSizesToArray(GRPC_SLICE_START_PTR(slice)));
       *bp = g_core_codegen_interface->grpc_raw_byte_buffer_create(&slice, 1);
-      g_core_codegen_interface->gpr_slice_unref(slice);
+      g_core_codegen_interface->grpc_slice_unref(slice);
       return g_core_codegen_interface->ok();
     } else {
       internal::GrpcBufferWriter writer(
diff --git a/include/grpc++/impl/codegen/thrift_serializer.h b/include/grpc++/impl/codegen/thrift_serializer.h
index fd324a9..86bc710 100644
--- a/include/grpc++/impl/codegen/thrift_serializer.h
+++ b/include/grpc++/impl/codegen/thrift_serializer.h
@@ -109,12 +109,12 @@
 
     Serialize(fields, &byte_buffer, &byte_buffer_size);
 
-    gpr_slice slice = gpr_slice_from_copied_buffer(
+    grpc_slice slice = grpc_slice_from_copied_buffer(
         reinterpret_cast<const char*>(byte_buffer), byte_buffer_size);
 
     *bp = grpc_raw_byte_buffer_create(&slice, 1);
 
-    gpr_slice_unref(slice);
+    grpc_slice_unref(slice);
   }
 
   // Deserialize the passed char array into  the passed type, returns the number
@@ -156,12 +156,12 @@
     grpc_byte_buffer_reader reader;
     grpc_byte_buffer_reader_init(&reader, buffer);
 
-    gpr_slice slice = grpc_byte_buffer_reader_readall(&reader);
+    grpc_slice slice = grpc_byte_buffer_reader_readall(&reader);
 
     uint32_t len =
-        Deserialize(GPR_SLICE_START_PTR(slice), GPR_SLICE_LENGTH(slice), msg);
+        Deserialize(GRPC_SLICE_START_PTR(slice), GRPC_SLICE_LENGTH(slice), msg);
 
-    gpr_slice_unref(slice);
+    grpc_slice_unref(slice);
 
     grpc_byte_buffer_reader_destroy(&reader);
 
@@ -214,4 +214,4 @@
 }  // namespace thrift
 }  // namespace apache
 
-#endif
+#endif  // GRPCXX_IMPL_CODEGEN_THRIFT_SERIALIZER_H
diff --git a/include/grpc++/support/slice.h b/include/grpc++/support/slice.h
index 85561f7..3ec0d1a 100644
--- a/include/grpc++/support/slice.h
+++ b/include/grpc++/support/slice.h
@@ -35,11 +35,11 @@
 #define GRPCXX_SUPPORT_SLICE_H
 
 #include <grpc++/support/config.h>
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 
 namespace grpc {
 
-/// A wrapper around \a gpr_slice.
+/// A wrapper around \a grpc_slice.
 ///
 /// A slice represents a contiguous reference counted array of bytes.
 /// It is cheap to take references to a slice, and it is cheap to create a
@@ -53,11 +53,11 @@
 
   enum AddRef { ADD_REF };
   /// Construct a slice from \a slice, adding a reference.
-  Slice(gpr_slice slice, AddRef);
+  Slice(grpc_slice slice, AddRef);
 
   enum StealRef { STEAL_REF };
   /// Construct a slice from \a slice, stealing a reference.
-  Slice(gpr_slice slice, StealRef);
+  Slice(grpc_slice slice, StealRef);
 
   /// Copy constructor, adds a reference.
   Slice(const Slice& other);
@@ -69,21 +69,21 @@
   }
 
   /// Byte size.
-  size_t size() const { return GPR_SLICE_LENGTH(slice_); }
+  size_t size() const { return GRPC_SLICE_LENGTH(slice_); }
 
   /// Raw pointer to the beginning (first element) of the slice.
-  const uint8_t* begin() const { return GPR_SLICE_START_PTR(slice_); }
+  const uint8_t* begin() const { return GRPC_SLICE_START_PTR(slice_); }
 
   /// Raw pointer to the end (one byte \em past the last element) of the slice.
-  const uint8_t* end() const { return GPR_SLICE_END_PTR(slice_); }
+  const uint8_t* end() const { return GRPC_SLICE_END_PTR(slice_); }
 
-  /// Raw C slice. Caller needs to call gpr_slice_unref when done.
-  gpr_slice c_slice() const { return gpr_slice_ref(slice_); }
+  /// Raw C slice. Caller needs to call grpc_slice_unref when done.
+  grpc_slice c_slice() const { return grpc_slice_ref(slice_); }
 
  private:
   friend class ByteBuffer;
 
-  gpr_slice slice_;
+  grpc_slice slice_;
 };
 
 }  // namespace grpc
diff --git a/include/grpc/byte_buffer.h b/include/grpc/byte_buffer.h
index f25c1d5..395ebef 100644
--- a/include/grpc/byte_buffer.h
+++ b/include/grpc/byte_buffer.h
@@ -35,7 +35,7 @@
 #define GRPC_BYTE_BUFFER_H
 
 #include <grpc/impl/codegen/grpc_types.h>
-#include <grpc/support/slice_buffer.h>
+#include <grpc/slice_buffer.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -45,7 +45,7 @@
  *
  * Increases the reference count for all \a slices processed. The user is
  * responsible for invoking grpc_byte_buffer_destroy on the returned instance.*/
-GRPCAPI grpc_byte_buffer *grpc_raw_byte_buffer_create(gpr_slice *slices,
+GRPCAPI grpc_byte_buffer *grpc_raw_byte_buffer_create(grpc_slice *slices,
                                                       size_t nslices);
 
 /** Returns a *compressed* RAW byte buffer instance over the given slices (up to
@@ -55,7 +55,7 @@
  * Increases the reference count for all \a slices processed. The user is
  * responsible for invoking grpc_byte_buffer_destroy on the returned instance.*/
 GRPCAPI grpc_byte_buffer *grpc_raw_compressed_byte_buffer_create(
-    gpr_slice *slices, size_t nslices, grpc_compression_algorithm compression);
+    grpc_slice *slices, size_t nslices, grpc_compression_algorithm compression);
 
 /** Copies input byte buffer \a bb.
  *
@@ -83,12 +83,12 @@
 
 /** Updates \a slice with the next piece of data from from \a reader and returns
  * 1. Returns 0 at the end of the stream. Caller is responsible for calling
- * gpr_slice_unref on the result. */
+ * grpc_slice_unref on the result. */
 GRPCAPI int grpc_byte_buffer_reader_next(grpc_byte_buffer_reader *reader,
-                                         gpr_slice *slice);
+                                         grpc_slice *slice);
 
 /** Merge all data from \a reader into single slice */
-GRPCAPI gpr_slice
+GRPCAPI grpc_slice
 grpc_byte_buffer_reader_readall(grpc_byte_buffer_reader *reader);
 
 /** Returns a RAW byte buffer instance from the output of \a reader. */
diff --git a/include/grpc/grpc.h b/include/grpc/grpc.h
index f8e4422..23d15fd 100644
--- a/include/grpc/grpc.h
+++ b/include/grpc/grpc.h
@@ -40,7 +40,7 @@
 #include <grpc/impl/codegen/connectivity_state.h>
 #include <grpc/impl/codegen/grpc_types.h>
 #include <grpc/impl/codegen/propagation_bits.h>
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include <grpc/support/time.h>
 #include <stddef.h>
 
diff --git a/include/grpc/impl/codegen/gpr_types.h b/include/grpc/impl/codegen/gpr_types.h
index c8f0815..ed9976f 100644
--- a/include/grpc/impl/codegen/gpr_types.h
+++ b/include/grpc/impl/codegen/gpr_types.h
@@ -68,71 +68,6 @@
   gpr_clock_type clock_type;
 } gpr_timespec;
 
-/* Slice API
-
-   A slice represents a contiguous reference counted array of bytes.
-   It is cheap to take references to a slice, and it is cheap to create a
-   slice pointing to a subset of another slice.
-
-   The data-structure for slices is exposed here to allow non-gpr code to
-   build slices from whatever data they have available.
-
-   When defining interfaces that handle slices, care should be taken to define
-   reference ownership semantics (who should call unref?) and mutability
-   constraints (is the callee allowed to modify the slice?) */
-
-/* Reference count container for gpr_slice. Contains function pointers to
-   increment and decrement reference counts. Implementations should cleanup
-   when the reference count drops to zero.
-   Typically client code should not touch this, and use gpr_slice_malloc,
-   gpr_slice_new, or gpr_slice_new_with_len instead. */
-typedef struct gpr_slice_refcount {
-  void (*ref)(void *);
-  void (*unref)(void *);
-} gpr_slice_refcount;
-
-#define GPR_SLICE_INLINED_SIZE (sizeof(size_t) + sizeof(uint8_t *) - 1)
-
-/* A gpr_slice s, if initialized, represents the byte range
-   s.bytes[0..s.length-1].
-
-   It can have an associated ref count which has a destruction routine to be run
-   when the ref count reaches zero (see gpr_slice_new() and grp_slice_unref()).
-   Multiple gpr_slice values may share a ref count.
-
-   If the slice does not have a refcount, it represents an inlined small piece
-   of data that is copied by value. */
-typedef struct gpr_slice {
-  struct gpr_slice_refcount *refcount;
-  union {
-    struct {
-      uint8_t *bytes;
-      size_t length;
-    } refcounted;
-    struct {
-      uint8_t length;
-      uint8_t bytes[GPR_SLICE_INLINED_SIZE];
-    } inlined;
-  } data;
-} gpr_slice;
-
-#define GRPC_SLICE_BUFFER_INLINE_ELEMENTS 8
-
-/* Represents an expandable array of slices, to be interpreted as a
-   single item. */
-typedef struct {
-  /* slices in the array */
-  gpr_slice *slices;
-  /* the number of slices in the array */
-  size_t count;
-  /* the number of slices allocated in the array */
-  size_t capacity;
-  /* the combined length of all slices in the array */
-  size_t length;
-  /* inlined elements to avoid allocations */
-  gpr_slice inlined[GRPC_SLICE_BUFFER_INLINE_ELEMENTS];
-} gpr_slice_buffer;
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/grpc/impl/codegen/grpc_types.h b/include/grpc/impl/codegen/grpc_types.h
index 66ece3c..1867862 100644
--- a/include/grpc/impl/codegen/grpc_types.h
+++ b/include/grpc/impl/codegen/grpc_types.h
@@ -35,6 +35,7 @@
 #define GRPC_IMPL_CODEGEN_GRPC_TYPES_H
 
 #include <grpc/impl/codegen/gpr_types.h>
+#include <grpc/impl/codegen/slice.h>
 
 #include <grpc/impl/codegen/compression_types.h>
 #include <grpc/impl/codegen/status.h>
@@ -60,7 +61,7 @@
     } reserved;
     struct {
       grpc_compression_algorithm compression;
-      gpr_slice_buffer slice_buffer;
+      grpc_slice_buffer slice_buffer;
     } raw;
   } data;
 } grpc_byte_buffer;
diff --git a/include/grpc/impl/codegen/slice.h b/include/grpc/impl/codegen/slice.h
index a2637ee..774ba0e 100644
--- a/include/grpc/impl/codegen/slice.h
+++ b/include/grpc/impl/codegen/slice.h
@@ -35,18 +35,84 @@
 #define GRPC_IMPL_CODEGEN_SLICE_H
 
 #include <stddef.h>
+#include <stdint.h>
 
-#define GPR_SLICE_START_PTR(slice)                  \
+/* Slice API
+
+   A slice represents a contiguous reference counted array of bytes.
+   It is cheap to take references to a slice, and it is cheap to create a
+   slice pointing to a subset of another slice.
+
+   The data-structure for slices is exposed here to allow non-gpr code to
+   build slices from whatever data they have available.
+
+   When defining interfaces that handle slices, care should be taken to define
+   reference ownership semantics (who should call unref?) and mutability
+   constraints (is the callee allowed to modify the slice?) */
+
+/* Reference count container for grpc_slice. Contains function pointers to
+   increment and decrement reference counts. Implementations should cleanup
+   when the reference count drops to zero.
+   Typically client code should not touch this, and use grpc_slice_malloc,
+   grpc_slice_new, or grpc_slice_new_with_len instead. */
+typedef struct grpc_slice_refcount {
+  void (*ref)(void *);
+  void (*unref)(void *);
+} grpc_slice_refcount;
+
+#define GRPC_SLICE_INLINED_SIZE (sizeof(size_t) + sizeof(uint8_t *) - 1)
+
+/* A grpc_slice s, if initialized, represents the byte range
+   s.bytes[0..s.length-1].
+
+   It can have an associated ref count which has a destruction routine to be run
+   when the ref count reaches zero (see grpc_slice_new() and grp_slice_unref()).
+   Multiple grpc_slice values may share a ref count.
+
+   If the slice does not have a refcount, it represents an inlined small piece
+   of data that is copied by value. */
+typedef struct grpc_slice {
+  struct grpc_slice_refcount *refcount;
+  union {
+    struct {
+      uint8_t *bytes;
+      size_t length;
+    } refcounted;
+    struct {
+      uint8_t length;
+      uint8_t bytes[GRPC_SLICE_INLINED_SIZE];
+    } inlined;
+  } data;
+} grpc_slice;
+
+#define GRPC_SLICE_BUFFER_INLINE_ELEMENTS 8
+
+/* Represents an expandable array of slices, to be interpreted as a
+   single item. */
+typedef struct {
+  /* slices in the array */
+  grpc_slice *slices;
+  /* the number of slices in the array */
+  size_t count;
+  /* the number of slices allocated in the array */
+  size_t capacity;
+  /* the combined length of all slices in the array */
+  size_t length;
+  /* inlined elements to avoid allocations */
+  grpc_slice inlined[GRPC_SLICE_BUFFER_INLINE_ELEMENTS];
+} grpc_slice_buffer;
+
+#define GRPC_SLICE_START_PTR(slice)                 \
   ((slice).refcount ? (slice).data.refcounted.bytes \
                     : (slice).data.inlined.bytes)
-#define GPR_SLICE_LENGTH(slice)                      \
+#define GRPC_SLICE_LENGTH(slice)                     \
   ((slice).refcount ? (slice).data.refcounted.length \
                     : (slice).data.inlined.length)
-#define GPR_SLICE_SET_LENGTH(slice, newlen)                               \
+#define GRPC_SLICE_SET_LENGTH(slice, newlen)                              \
   ((slice).refcount ? ((slice).data.refcounted.length = (size_t)(newlen)) \
                     : ((slice).data.inlined.length = (uint8_t)(newlen)))
-#define GPR_SLICE_END_PTR(slice) \
-  GPR_SLICE_START_PTR(slice) + GPR_SLICE_LENGTH(slice)
-#define GPR_SLICE_IS_EMPTY(slice) (GPR_SLICE_LENGTH(slice) == 0)
+#define GRPC_SLICE_END_PTR(slice) \
+  GRPC_SLICE_START_PTR(slice) + GRPC_SLICE_LENGTH(slice)
+#define GRPC_SLICE_IS_EMPTY(slice) (GRPC_SLICE_LENGTH(slice) == 0)
 
 #endif /* GRPC_IMPL_CODEGEN_SLICE_H */
diff --git a/include/grpc/support/slice.h b/include/grpc/slice.h
similarity index 66%
rename from include/grpc/support/slice.h
rename to include/grpc/slice.h
index b31fe6c..ee0bb49 100644
--- a/include/grpc/support/slice.h
+++ b/include/grpc/slice.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_SUPPORT_SLICE_H
-#define GRPC_SUPPORT_SLICE_H
+#ifndef GRPC_SLICE_H
+#define GRPC_SLICE_H
 
 #include <grpc/impl/codegen/slice.h>
 #include <grpc/support/sync.h>
@@ -43,86 +43,86 @@
 
 /* Increment the refcount of s. Requires slice is initialized.
    Returns s. */
-GPRAPI gpr_slice gpr_slice_ref(gpr_slice s);
+GPRAPI grpc_slice grpc_slice_ref(grpc_slice s);
 
 /* Decrement the ref count of s.  If the ref count of s reaches zero, all
    slices sharing the ref count are destroyed, and considered no longer
-   initialized.  If s is ultimately derived from a call to gpr_slice_new(start,
+   initialized.  If s is ultimately derived from a call to grpc_slice_new(start,
    len, dest) where dest!=NULL , then (*dest)(start) is called, else if s is
-   ultimately derived from a call to gpr_slice_new_with_len(start, len, dest)
+   ultimately derived from a call to grpc_slice_new_with_len(start, len, dest)
    where dest!=NULL , then (*dest)(start, len).  Requires s initialized.  */
-GPRAPI void gpr_slice_unref(gpr_slice s);
+GPRAPI void grpc_slice_unref(grpc_slice s);
 
 /* Create a slice pointing at some data. Calls malloc to allocate a refcount
    for the object, and arranges that destroy will be called with the pointer
    passed in at destruction. */
-GPRAPI gpr_slice gpr_slice_new(void *p, size_t len, void (*destroy)(void *));
+GPRAPI grpc_slice grpc_slice_new(void *p, size_t len, void (*destroy)(void *));
 
-/* Equivalent to gpr_slice_new, but with a separate pointer that is
+/* Equivalent to grpc_slice_new, but with a separate pointer that is
    passed to the destroy function.  This function can be useful when
    the data is part of a larger structure that must be destroyed when
    the data is no longer needed. */
-GPRAPI gpr_slice gpr_slice_new_with_user_data(void *p, size_t len,
-                                              void (*destroy)(void *),
-                                              void *user_data);
+GPRAPI grpc_slice grpc_slice_new_with_user_data(void *p, size_t len,
+                                                void (*destroy)(void *),
+                                                void *user_data);
 
-/* Equivalent to gpr_slice_new, but with a two argument destroy function that
+/* Equivalent to grpc_slice_new, but with a two argument destroy function that
    also takes the slice length. */
-GPRAPI gpr_slice gpr_slice_new_with_len(void *p, size_t len,
-                                        void (*destroy)(void *, size_t));
+GPRAPI grpc_slice grpc_slice_new_with_len(void *p, size_t len,
+                                          void (*destroy)(void *, size_t));
 
-/* Equivalent to gpr_slice_new(malloc(len), len, free), but saves one malloc()
+/* Equivalent to grpc_slice_new(malloc(len), len, free), but saves one malloc()
    call.
    Aborts if malloc() fails. */
-GPRAPI gpr_slice gpr_slice_malloc(size_t length);
+GPRAPI grpc_slice grpc_slice_malloc(size_t length);
 
 /* Create a slice by copying a string.
    Does not preserve null terminators.
    Equivalent to:
      size_t len = strlen(source);
-     gpr_slice slice = gpr_slice_malloc(len);
+     grpc_slice slice = grpc_slice_malloc(len);
      memcpy(slice->data, source, len); */
-GPRAPI gpr_slice gpr_slice_from_copied_string(const char *source);
+GPRAPI grpc_slice grpc_slice_from_copied_string(const char *source);
 
 /* Create a slice by copying a buffer.
    Equivalent to:
-     gpr_slice slice = gpr_slice_malloc(len);
+     grpc_slice slice = grpc_slice_malloc(len);
      memcpy(slice->data, source, len); */
-GPRAPI gpr_slice gpr_slice_from_copied_buffer(const char *source, size_t len);
+GPRAPI grpc_slice grpc_slice_from_copied_buffer(const char *source, size_t len);
 
 /* Create a slice pointing to constant memory */
-GPRAPI gpr_slice gpr_slice_from_static_string(const char *source);
+GPRAPI grpc_slice grpc_slice_from_static_string(const char *source);
 
 /* Return a result slice derived from s, which shares a ref count with s, where
    result.data==s.data+begin, and result.length==end-begin.
    The ref count of s is increased by one.
    Requires s initialized, begin <= end, begin <= s.length, and
    end <= source->length. */
-GPRAPI gpr_slice gpr_slice_sub(gpr_slice s, size_t begin, size_t end);
+GPRAPI grpc_slice grpc_slice_sub(grpc_slice s, size_t begin, size_t end);
 
-/* The same as gpr_slice_sub, but without altering the ref count */
-GPRAPI gpr_slice gpr_slice_sub_no_ref(gpr_slice s, size_t begin, size_t end);
+/* The same as grpc_slice_sub, but without altering the ref count */
+GPRAPI grpc_slice grpc_slice_sub_no_ref(grpc_slice s, size_t begin, size_t end);
 
 /* Splits s into two: modifies s to be s[0:split], and returns a new slice,
    sharing a refcount with s, that contains s[split:s.length].
    Requires s intialized, split <= s.length */
-GPRAPI gpr_slice gpr_slice_split_tail(gpr_slice *s, size_t split);
+GPRAPI grpc_slice grpc_slice_split_tail(grpc_slice *s, size_t split);
 
 /* Splits s into two: modifies s to be s[split:s.length], and returns a new
    slice, sharing a refcount with s, that contains s[0:split].
    Requires s intialized, split <= s.length */
-GPRAPI gpr_slice gpr_slice_split_head(gpr_slice *s, size_t split);
+GPRAPI grpc_slice grpc_slice_split_head(grpc_slice *s, size_t split);
 
-GPRAPI gpr_slice gpr_empty_slice(void);
+GPRAPI grpc_slice gpr_empty_slice(void);
 
 /* Returns <0 if a < b, ==0 if a == b, >0 if a > b
    The order is arbitrary, and is not guaranteed to be stable across different
    versions of the API. */
-GPRAPI int gpr_slice_cmp(gpr_slice a, gpr_slice b);
-GPRAPI int gpr_slice_str_cmp(gpr_slice a, const char *b);
+GPRAPI int grpc_slice_cmp(grpc_slice a, grpc_slice b);
+GPRAPI int grpc_slice_str_cmp(grpc_slice a, const char *b);
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif /* GRPC_SUPPORT_SLICE_H */
+#endif /* GRPC_SLICE_H */
diff --git a/include/grpc/support/slice_buffer.h b/include/grpc/slice_buffer.h
similarity index 68%
rename from include/grpc/support/slice_buffer.h
rename to include/grpc/slice_buffer.h
index 3920432..f1de653 100644
--- a/include/grpc/support/slice_buffer.h
+++ b/include/grpc/slice_buffer.h
@@ -31,23 +31,23 @@
  *
  */
 
-#ifndef GRPC_SUPPORT_SLICE_BUFFER_H
-#define GRPC_SUPPORT_SLICE_BUFFER_H
+#ifndef GRPC_SLICE_BUFFER_H
+#define GRPC_SLICE_BUFFER_H
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /* initialize a slice buffer */
-GPRAPI void gpr_slice_buffer_init(gpr_slice_buffer *sb);
+GPRAPI void grpc_slice_buffer_init(grpc_slice_buffer *sb);
 /* destroy a slice buffer - unrefs any held elements */
-GPRAPI void gpr_slice_buffer_destroy(gpr_slice_buffer *sb);
+GPRAPI void grpc_slice_buffer_destroy(grpc_slice_buffer *sb);
 /* Add an element to a slice buffer - takes ownership of the slice.
    This function is allowed to concatenate the passed in slice to the end of
    some other slice if desired by the slice buffer. */
-GPRAPI void gpr_slice_buffer_add(gpr_slice_buffer *sb, gpr_slice slice);
+GPRAPI void grpc_slice_buffer_add(grpc_slice_buffer *sb, grpc_slice slice);
 /* add an element to a slice buffer - takes ownership of the slice and returns
    the index of the slice.
    Guarantees that the slice will not be concatenated at the end of another
@@ -55,33 +55,33 @@
    slice at the returned index in sb->slices)
    The implementation MAY decide to concatenate data at the end of a small
    slice added in this fashion. */
-GPRAPI size_t gpr_slice_buffer_add_indexed(gpr_slice_buffer *sb,
-                                           gpr_slice slice);
-GPRAPI void gpr_slice_buffer_addn(gpr_slice_buffer *sb, gpr_slice *slices,
-                                  size_t n);
+GPRAPI size_t grpc_slice_buffer_add_indexed(grpc_slice_buffer *sb,
+                                            grpc_slice slice);
+GPRAPI void grpc_slice_buffer_addn(grpc_slice_buffer *sb, grpc_slice *slices,
+                                   size_t n);
 /* add a very small (less than 8 bytes) amount of data to the end of a slice
    buffer: returns a pointer into which to add the data */
-GPRAPI uint8_t *gpr_slice_buffer_tiny_add(gpr_slice_buffer *sb, size_t len);
+GPRAPI uint8_t *grpc_slice_buffer_tiny_add(grpc_slice_buffer *sb, size_t len);
 /* pop the last buffer, but don't unref it */
-GPRAPI void gpr_slice_buffer_pop(gpr_slice_buffer *sb);
+GPRAPI void grpc_slice_buffer_pop(grpc_slice_buffer *sb);
 /* clear a slice buffer, unref all elements */
-GPRAPI void gpr_slice_buffer_reset_and_unref(gpr_slice_buffer *sb);
+GPRAPI void grpc_slice_buffer_reset_and_unref(grpc_slice_buffer *sb);
 /* swap the contents of two slice buffers */
-GPRAPI void gpr_slice_buffer_swap(gpr_slice_buffer *a, gpr_slice_buffer *b);
+GPRAPI void grpc_slice_buffer_swap(grpc_slice_buffer *a, grpc_slice_buffer *b);
 /* move all of the elements of src into dst */
-GPRAPI void gpr_slice_buffer_move_into(gpr_slice_buffer *src,
-                                       gpr_slice_buffer *dst);
+GPRAPI void grpc_slice_buffer_move_into(grpc_slice_buffer *src,
+                                        grpc_slice_buffer *dst);
 /* remove n bytes from the end of a slice buffer */
-GPRAPI void gpr_slice_buffer_trim_end(gpr_slice_buffer *src, size_t n,
-                                      gpr_slice_buffer *garbage);
+GPRAPI void grpc_slice_buffer_trim_end(grpc_slice_buffer *src, size_t n,
+                                       grpc_slice_buffer *garbage);
 /* move the first n bytes of src into dst */
-GPRAPI void gpr_slice_buffer_move_first(gpr_slice_buffer *src, size_t n,
-                                        gpr_slice_buffer *dst);
+GPRAPI void grpc_slice_buffer_move_first(grpc_slice_buffer *src, size_t n,
+                                         grpc_slice_buffer *dst);
 /* take the first slice in the slice buffer */
-GPRAPI gpr_slice gpr_slice_buffer_take_first(gpr_slice_buffer *src);
+GPRAPI grpc_slice grpc_slice_buffer_take_first(grpc_slice_buffer *src);
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif /* GRPC_SUPPORT_SLICE_BUFFER_H */
+#endif /* GRPC_SLICE_BUFFER_H */
diff --git a/package.xml b/package.xml
index 169553e..348ad5f 100644
--- a/package.xml
+++ b/package.xml
@@ -64,8 +64,6 @@
     <file baseinstalldir="/" name="include/grpc/support/log.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/log_windows.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/port_platform.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/slice.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/slice_buffer.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/string_util.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/subprocess.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/sync.h" role="src" />
@@ -96,7 +94,6 @@
     <file baseinstalldir="/" name="src/core/lib/support/env.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/mpscq.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/murmur_hash.h" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/support/percent_encoding.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/stack_lockfree.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/string.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/string_windows.h" role="src" />
@@ -125,9 +122,6 @@
     <file baseinstalldir="/" name="src/core/lib/support/log_windows.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/mpscq.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/murmur_hash.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/support/percent_encoding.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/support/slice.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/support/slice_buffer.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/stack_lockfree.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/string.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/string_posix.c" role="src" />
@@ -156,6 +150,8 @@
     <file baseinstalldir="/" name="include/grpc/grpc.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/grpc_posix.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/grpc_security_constants.h" role="src" />
+    <file baseinstalldir="/" name="include/grpc/slice.h" role="src" />
+    <file baseinstalldir="/" name="include/grpc/slice_buffer.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/status.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/byte_buffer_reader.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/compression_types.h" role="src" />
@@ -249,6 +245,8 @@
     <file baseinstalldir="/" name="src/core/lib/json/json_common.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/json/json_reader.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/json/json_writer.h" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/slice/percent_encoding.h" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/slice/slice_string_helpers.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/surface/api_trace.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/surface/call.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/surface/call_test_only.h" role="src" />
@@ -431,6 +429,10 @@
     <file baseinstalldir="/" name="src/core/lib/json/json_reader.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/json/json_string.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/json/json_writer.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/slice/percent_encoding.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/slice/slice.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/slice/slice_buffer.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/slice/slice_string_helpers.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/surface/alarm.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/surface/api_trace.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/surface/byte_buffer.c" role="src" />
diff --git a/src/core/ext/census/grpc_filter.c b/src/core/ext/census/grpc_filter.c
index a4cf6f3..5a283de 100644
--- a/src/core/ext/census/grpc_filter.c
+++ b/src/core/ext/census/grpc_filter.c
@@ -37,9 +37,9 @@
 #include <string.h>
 
 #include <grpc/census.h>
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include <grpc/support/time.h>
 
 #include "src/core/ext/census/census_interface.h"
@@ -69,7 +69,7 @@
   for (m = md->list.head; m != NULL; m = m->next) {
     if (m->md->key == GRPC_MDSTR_PATH) {
       gpr_log(GPR_DEBUG, "%s",
-              (const char *)GPR_SLICE_START_PTR(m->md->value->slice));
+              (const char *)GRPC_SLICE_START_PTR(m->md->value->slice));
       /* Add method tag here */
     }
   }
diff --git a/src/core/ext/census/trace_context.h b/src/core/ext/census/trace_context.h
index ee71fef..1cb5e26 100644
--- a/src/core/ext/census/trace_context.h
+++ b/src/core/ext/census/trace_context.h
@@ -65,4 +65,4 @@
 bool decode_trace_context(google_trace_TraceContext *ctxt, uint8_t *buffer,
                           const size_t nbytes);
 
-#endif
+#endif /* GRPC_CORE_EXT_CENSUS_TRACE_CONTEXT_H */
diff --git a/src/core/ext/client_channel/connector.h b/src/core/ext/client_channel/connector.h
index ed7d545..3de0616 100644
--- a/src/core/ext/client_channel/connector.h
+++ b/src/core/ext/client_channel/connector.h
@@ -52,7 +52,7 @@
   const grpc_resolved_address *addr;
   size_t addr_len;
   /** initial connect string to send */
-  gpr_slice initial_connect_string;
+  grpc_slice initial_connect_string;
   /** deadline for connection */
   gpr_timespec deadline;
   /** channel arguments (to be passed to transport) */
diff --git a/src/core/ext/client_channel/default_initial_connect_string.c b/src/core/ext/client_channel/default_initial_connect_string.c
index 0b25137..6db82d8 100644
--- a/src/core/ext/client_channel/default_initial_connect_string.c
+++ b/src/core/ext/client_channel/default_initial_connect_string.c
@@ -31,8 +31,8 @@
  *
  */
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include "src/core/lib/iomgr/resolve_address.h"
 
 void grpc_set_default_initial_connect_string(grpc_resolved_address **addr,
-                                             gpr_slice *initial_str) {}
+                                             grpc_slice *initial_str) {}
diff --git a/src/core/ext/client_channel/http_connect_handshaker.c b/src/core/ext/client_channel/http_connect_handshaker.c
index ea2cbbd..8204289 100644
--- a/src/core/ext/client_channel/http_connect_handshaker.c
+++ b/src/core/ext/client_channel/http_connect_handshaker.c
@@ -35,9 +35,9 @@
 
 #include <string.h>
 
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/string_util.h>
 
 #include "src/core/ext/client_channel/uri_parser.h"
@@ -60,8 +60,8 @@
   void* user_data;
 
   // Objects for processing the HTTP CONNECT request and response.
-  gpr_slice_buffer write_buffer;
-  gpr_slice_buffer* read_buffer;  // Ownership passes through this object.
+  grpc_slice_buffer write_buffer;
+  grpc_slice_buffer* read_buffer;  // Ownership passes through this object.
   grpc_closure request_done_closure;
   grpc_closure response_read_closure;
   grpc_http_parser http_parser;
@@ -76,7 +76,7 @@
   if (gpr_unref(&handshaker->refcount)) {
     gpr_free(handshaker->proxy_server);
     gpr_free(handshaker->server_name);
-    gpr_slice_buffer_destroy(&handshaker->write_buffer);
+    grpc_slice_buffer_destroy(&handshaker->write_buffer);
     grpc_http_parser_destroy(&handshaker->http_parser);
     grpc_http_response_destroy(&handshaker->http_response);
     gpr_free(handshaker);
@@ -118,7 +118,7 @@
   }
   // Add buffer to parser.
   for (size_t i = 0; i < handshaker->read_buffer->count; ++i) {
-    if (GPR_SLICE_LENGTH(handshaker->read_buffer->slices[i]) > 0) {
+    if (GRPC_SLICE_LENGTH(handshaker->read_buffer->slices[i]) > 0) {
       size_t body_start_offset = 0;
       error = grpc_http_parser_parse(&handshaker->http_parser,
                                      handshaker->read_buffer->slices[i],
@@ -129,20 +129,20 @@
         grpc_timer_cancel(exec_ctx, &handshaker->timeout_timer);
         // Remove the data we've already read from the read buffer,
         // leaving only the leftover bytes (if any).
-        gpr_slice_buffer tmp_buffer;
-        gpr_slice_buffer_init(&tmp_buffer);
+        grpc_slice_buffer tmp_buffer;
+        grpc_slice_buffer_init(&tmp_buffer);
         if (body_start_offset <
-            GPR_SLICE_LENGTH(handshaker->read_buffer->slices[i])) {
-          gpr_slice_buffer_add(
+            GRPC_SLICE_LENGTH(handshaker->read_buffer->slices[i])) {
+          grpc_slice_buffer_add(
               &tmp_buffer,
-              gpr_slice_split_tail(&handshaker->read_buffer->slices[i],
-                                   body_start_offset));
+              grpc_slice_split_tail(&handshaker->read_buffer->slices[i],
+                                    body_start_offset));
         }
-        gpr_slice_buffer_addn(&tmp_buffer,
-                              &handshaker->read_buffer->slices[i + 1],
-                              handshaker->read_buffer->count - i - 1);
-        gpr_slice_buffer_swap(handshaker->read_buffer, &tmp_buffer);
-        gpr_slice_buffer_destroy(&tmp_buffer);
+        grpc_slice_buffer_addn(&tmp_buffer,
+                               &handshaker->read_buffer->slices[i + 1],
+                               handshaker->read_buffer->count - i - 1);
+        grpc_slice_buffer_swap(handshaker->read_buffer, &tmp_buffer);
+        grpc_slice_buffer_destroy(&tmp_buffer);
         break;
       }
     }
@@ -159,7 +159,7 @@
   // complete (e.g., handling chunked transfer encoding or looking
   // at the Content-Length: header).
   if (handshaker->http_parser.state != GRPC_HTTP_BODY) {
-    gpr_slice_buffer_reset_and_unref(handshaker->read_buffer);
+    grpc_slice_buffer_reset_and_unref(handshaker->read_buffer);
     grpc_endpoint_read(exec_ctx, handshaker->endpoint, handshaker->read_buffer,
                        &handshaker->response_read_closure);
     return;
@@ -195,7 +195,7 @@
 static void http_connect_handshaker_do_handshake(
     grpc_exec_ctx* exec_ctx, grpc_handshaker* handshaker_in,
     grpc_endpoint* endpoint, grpc_channel_args* args,
-    gpr_slice_buffer* read_buffer, gpr_timespec deadline,
+    grpc_slice_buffer* read_buffer, gpr_timespec deadline,
     grpc_tcp_server_acceptor* acceptor, grpc_handshaker_done_cb cb,
     void* user_data) {
   http_connect_handshaker* handshaker = (http_connect_handshaker*)handshaker_in;
@@ -214,8 +214,8 @@
   request.http.method = "CONNECT";
   request.http.path = handshaker->server_name;
   request.handshaker = &grpc_httpcli_plaintext;
-  gpr_slice request_slice = grpc_httpcli_format_connect_request(&request);
-  gpr_slice_buffer_add(&handshaker->write_buffer, request_slice);
+  grpc_slice request_slice = grpc_httpcli_format_connect_request(&request);
+  grpc_slice_buffer_add(&handshaker->write_buffer, request_slice);
   grpc_endpoint_write(exec_ctx, endpoint, &handshaker->write_buffer,
                       &handshaker->request_done_closure);
   // Set timeout timer.  The timer gets a reference to the handshaker.
@@ -239,7 +239,7 @@
   grpc_handshaker_init(&http_connect_handshaker_vtable, &handshaker->base);
   handshaker->proxy_server = gpr_strdup(proxy_server);
   handshaker->server_name = gpr_strdup(server_name);
-  gpr_slice_buffer_init(&handshaker->write_buffer);
+  grpc_slice_buffer_init(&handshaker->write_buffer);
   grpc_closure_init(&handshaker->request_done_closure, on_write_done,
                     handshaker);
   grpc_closure_init(&handshaker->response_read_closure, on_read_done,
diff --git a/src/core/ext/client_channel/initial_connect_string.c b/src/core/ext/client_channel/initial_connect_string.c
index fb1493d..8ebd06c 100644
--- a/src/core/ext/client_channel/initial_connect_string.c
+++ b/src/core/ext/client_channel/initial_connect_string.c
@@ -36,7 +36,7 @@
 #include <stddef.h>
 
 extern void grpc_set_default_initial_connect_string(
-    grpc_resolved_address **addr, gpr_slice *initial_str);
+    grpc_resolved_address **addr, grpc_slice *initial_str);
 
 static grpc_set_initial_connect_string_func g_set_initial_connect_string_func =
     grpc_set_default_initial_connect_string;
@@ -47,6 +47,6 @@
 }
 
 void grpc_set_initial_connect_string(grpc_resolved_address **addr,
-                                     gpr_slice *initial_str) {
+                                     grpc_slice *initial_str) {
   g_set_initial_connect_string_func(addr, initial_str);
 }
diff --git a/src/core/ext/client_channel/initial_connect_string.h b/src/core/ext/client_channel/initial_connect_string.h
index 68adb03..876abea 100644
--- a/src/core/ext/client_channel/initial_connect_string.h
+++ b/src/core/ext/client_channel/initial_connect_string.h
@@ -34,17 +34,17 @@
 #ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_INITIAL_CONNECT_STRING_H
 #define GRPC_CORE_EXT_CLIENT_CHANNEL_INITIAL_CONNECT_STRING_H
 
-#include <grpc/support/slice.h>
-
+#include <grpc/slice.h>
 #include "src/core/lib/iomgr/resolve_address.h"
 
 typedef void (*grpc_set_initial_connect_string_func)(
-    grpc_resolved_address **addr, gpr_slice *initial_str);
+    grpc_resolved_address **addr, grpc_slice *initial_str);
+
 void grpc_test_set_initial_connect_string_function(
     grpc_set_initial_connect_string_func func);
 
 /** Set a string to be sent once connected. Optionally reset addr. */
 void grpc_set_initial_connect_string(grpc_resolved_address **addr,
-                                     gpr_slice *connect_string);
+                                     grpc_slice *connect_string);
 
 #endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_INITIAL_CONNECT_STRING_H */
diff --git a/src/core/ext/client_channel/subchannel.c b/src/core/ext/client_channel/subchannel.c
index 789966c..a5d7c0d 100644
--- a/src/core/ext/client_channel/subchannel.c
+++ b/src/core/ext/client_channel/subchannel.c
@@ -100,7 +100,7 @@
   grpc_subchannel_key *key;
 
   /** initial string to send to peer */
-  gpr_slice initial_connect_string;
+  grpc_slice initial_connect_string;
 
   /** set during connection */
   grpc_connect_out_args connecting_result;
@@ -206,7 +206,7 @@
   gpr_free((void *)c->filters);
   grpc_channel_args_destroy(c->args);
   gpr_free(c->addr);
-  gpr_slice_unref(c->initial_connect_string);
+  grpc_slice_unref(c->initial_connect_string);
   grpc_connectivity_state_destroy(exec_ctx, &c->state_tracker);
   grpc_connector_unref(exec_ctx, c->connector);
   grpc_pollset_set_destroy(c->pollset_set);
diff --git a/src/core/ext/client_channel/uri_parser.c b/src/core/ext/client_channel/uri_parser.c
index bcb6a1d..0fbc542 100644
--- a/src/core/ext/client_channel/uri_parser.c
+++ b/src/core/ext/client_channel/uri_parser.c
@@ -35,13 +35,14 @@
 
 #include <string.h>
 
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
-#include <grpc/support/slice.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/string_util.h>
 
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 
 /** a size_t default value... maps to all 1's */
@@ -148,38 +149,38 @@
     uri->num_query_parts = 0;
     return;
   }
-  gpr_slice query_slice =
-      gpr_slice_new(uri->query, strlen(uri->query), do_nothing);
-  gpr_slice_buffer query_parts; /* the &-separated elements of the query */
-  gpr_slice_buffer query_param_parts; /* the =-separated subelements */
+  grpc_slice query_slice =
+      grpc_slice_new(uri->query, strlen(uri->query), do_nothing);
+  grpc_slice_buffer query_parts; /* the &-separated elements of the query */
+  grpc_slice_buffer query_param_parts; /* the =-separated subelements */
 
-  gpr_slice_buffer_init(&query_parts);
-  gpr_slice_buffer_init(&query_param_parts);
+  grpc_slice_buffer_init(&query_parts);
+  grpc_slice_buffer_init(&query_param_parts);
 
-  gpr_slice_split(query_slice, QUERY_PARTS_SEPARATOR, &query_parts);
+  grpc_slice_split(query_slice, QUERY_PARTS_SEPARATOR, &query_parts);
   uri->query_parts = gpr_malloc(query_parts.count * sizeof(char *));
   uri->query_parts_values = gpr_malloc(query_parts.count * sizeof(char *));
   uri->num_query_parts = query_parts.count;
   for (size_t i = 0; i < query_parts.count; i++) {
-    gpr_slice_split(query_parts.slices[i], QUERY_PARTS_VALUE_SEPARATOR,
-                    &query_param_parts);
+    grpc_slice_split(query_parts.slices[i], QUERY_PARTS_VALUE_SEPARATOR,
+                     &query_param_parts);
     GPR_ASSERT(query_param_parts.count > 0);
     uri->query_parts[i] =
-        gpr_dump_slice(query_param_parts.slices[0], GPR_DUMP_ASCII);
+        grpc_dump_slice(query_param_parts.slices[0], GPR_DUMP_ASCII);
     if (query_param_parts.count > 1) {
       /* TODO(dgq): only the first value after the separator is considered.
        * Perhaps all chars after the first separator for the query part should
        * be included, even if they include the separator. */
       uri->query_parts_values[i] =
-          gpr_dump_slice(query_param_parts.slices[1], GPR_DUMP_ASCII);
+          grpc_dump_slice(query_param_parts.slices[1], GPR_DUMP_ASCII);
     } else {
       uri->query_parts_values[i] = NULL;
     }
-    gpr_slice_buffer_reset_and_unref(&query_param_parts);
+    grpc_slice_buffer_reset_and_unref(&query_param_parts);
   }
-  gpr_slice_buffer_destroy(&query_parts);
-  gpr_slice_buffer_destroy(&query_param_parts);
-  gpr_slice_unref(query_slice);
+  grpc_slice_buffer_destroy(&query_parts);
+  grpc_slice_buffer_destroy(&query_param_parts);
+  grpc_slice_unref(query_slice);
 }
 
 grpc_uri *grpc_uri_parse(const char *uri_text, int suppress_errors) {
diff --git a/src/core/ext/lb_policy/grpclb/grpclb.c b/src/core/ext/lb_policy/grpclb/grpclb.c
index 6249f8b..41e177c 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb.c
+++ b/src/core/ext/lb_policy/grpclb/grpclb.c
@@ -116,6 +116,7 @@
 #include "src/core/lib/iomgr/sockaddr.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
 #include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/backoff.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/surface/call.h"
@@ -971,10 +972,10 @@
 
   grpc_grpclb_request *request =
       grpc_grpclb_request_create(glb_policy->server_name);
-  gpr_slice request_payload_slice = grpc_grpclb_request_encode(request);
+  grpc_slice request_payload_slice = grpc_grpclb_request_encode(request);
   glb_policy->lb_request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
-  gpr_slice_unref(request_payload_slice);
+  grpc_slice_unref(request_payload_slice);
   grpc_grpclb_request_destroy(request);
 
   glb_policy->lb_call_status_details = NULL;
@@ -1086,13 +1087,13 @@
      * glb_policy->lb_response_payload, for a serverlist. */
     grpc_byte_buffer_reader bbr;
     grpc_byte_buffer_reader_init(&bbr, glb_policy->lb_response_payload);
-    gpr_slice response_slice = grpc_byte_buffer_reader_readall(&bbr);
+    grpc_slice response_slice = grpc_byte_buffer_reader_readall(&bbr);
     grpc_byte_buffer_destroy(glb_policy->lb_response_payload);
     grpc_grpclb_serverlist *serverlist =
         grpc_grpclb_response_parse_serverlist(response_slice);
     if (serverlist != NULL) {
       GPR_ASSERT(glb_policy->lb_call != NULL);
-      gpr_slice_unref(response_slice);
+      grpc_slice_unref(response_slice);
       if (grpc_lb_glb_trace) {
         gpr_log(GPR_INFO, "Serverlist with %lu servers received",
                 (unsigned long)serverlist->num_servers);
@@ -1134,8 +1135,8 @@
       }
     } else { /* serverlist == NULL */
       gpr_log(GPR_ERROR, "Invalid LB response received: '%s'. Ignoring.",
-              gpr_dump_slice(response_slice, GPR_DUMP_ASCII | GPR_DUMP_HEX));
-      gpr_slice_unref(response_slice);
+              grpc_dump_slice(response_slice, GPR_DUMP_ASCII | GPR_DUMP_HEX));
+      grpc_slice_unref(response_slice);
     }
 
     if (!glb_policy->shutting_down) {
diff --git a/src/core/ext/lb_policy/grpclb/load_balancer_api.c b/src/core/ext/lb_policy/grpclb/load_balancer_api.c
index a888100..837e9c1 100644
--- a/src/core/ext/lb_policy/grpclb/load_balancer_api.c
+++ b/src/core/ext/lb_policy/grpclb/load_balancer_api.c
@@ -90,18 +90,18 @@
   return req;
 }
 
-gpr_slice grpc_grpclb_request_encode(const grpc_grpclb_request *request) {
+grpc_slice grpc_grpclb_request_encode(const grpc_grpclb_request *request) {
   size_t encoded_length;
   pb_ostream_t sizestream;
   pb_ostream_t outputstream;
-  gpr_slice slice;
+  grpc_slice slice;
   memset(&sizestream, 0, sizeof(pb_ostream_t));
   pb_encode(&sizestream, grpc_lb_v1_LoadBalanceRequest_fields, request);
   encoded_length = sizestream.bytes_written;
 
-  slice = gpr_slice_malloc(encoded_length);
+  slice = grpc_slice_malloc(encoded_length);
   outputstream =
-      pb_ostream_from_buffer(GPR_SLICE_START_PTR(slice), encoded_length);
+      pb_ostream_from_buffer(GRPC_SLICE_START_PTR(slice), encoded_length);
   GPR_ASSERT(pb_encode(&outputstream, grpc_lb_v1_LoadBalanceRequest_fields,
                        request) != 0);
   return slice;
@@ -113,10 +113,10 @@
 
 typedef grpc_lb_v1_LoadBalanceResponse grpc_grpclb_response;
 grpc_grpclb_initial_response *grpc_grpclb_initial_response_parse(
-    gpr_slice encoded_grpc_grpclb_response) {
+    grpc_slice encoded_grpc_grpclb_response) {
   pb_istream_t stream =
-      pb_istream_from_buffer(GPR_SLICE_START_PTR(encoded_grpc_grpclb_response),
-                             GPR_SLICE_LENGTH(encoded_grpc_grpclb_response));
+      pb_istream_from_buffer(GRPC_SLICE_START_PTR(encoded_grpc_grpclb_response),
+                             GRPC_SLICE_LENGTH(encoded_grpc_grpclb_response));
   grpc_grpclb_response res;
   memset(&res, 0, sizeof(grpc_grpclb_response));
   if (!pb_decode(&stream, grpc_lb_v1_LoadBalanceResponse_fields, &res)) {
@@ -132,12 +132,12 @@
 }
 
 grpc_grpclb_serverlist *grpc_grpclb_response_parse_serverlist(
-    gpr_slice encoded_grpc_grpclb_response) {
+    grpc_slice encoded_grpc_grpclb_response) {
   bool status;
   decode_serverlist_arg arg;
   pb_istream_t stream =
-      pb_istream_from_buffer(GPR_SLICE_START_PTR(encoded_grpc_grpclb_response),
-                             GPR_SLICE_LENGTH(encoded_grpc_grpclb_response));
+      pb_istream_from_buffer(GRPC_SLICE_START_PTR(encoded_grpc_grpclb_response),
+                             GRPC_SLICE_LENGTH(encoded_grpc_grpclb_response));
   pb_istream_t stream_at_start = stream;
   grpc_grpclb_response res;
   memset(&res, 0, sizeof(grpc_grpclb_response));
diff --git a/src/core/ext/lb_policy/grpclb/load_balancer_api.h b/src/core/ext/lb_policy/grpclb/load_balancer_api.h
index 079a64a..b4c967e 100644
--- a/src/core/ext/lb_policy/grpclb/load_balancer_api.h
+++ b/src/core/ext/lb_policy/grpclb/load_balancer_api.h
@@ -34,7 +34,7 @@
 #ifndef GRPC_CORE_EXT_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H
 #define GRPC_CORE_EXT_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H
 
-#include <grpc/support/slice_buffer.h>
+#include <grpc/slice_buffer.h>
 
 #include "src/core/ext/client_channel/lb_policy_factory.h"
 #include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
@@ -60,7 +60,7 @@
 grpc_grpclb_request *grpc_grpclb_request_create(const char *lb_service_name);
 
 /** Protocol Buffers v3-encode \a request */
-gpr_slice grpc_grpclb_request_encode(const grpc_grpclb_request *request);
+grpc_slice grpc_grpclb_request_encode(const grpc_grpclb_request *request);
 
 /** Destroy \a request */
 void grpc_grpclb_request_destroy(grpc_grpclb_request *request);
@@ -68,11 +68,11 @@
 /** Parse (ie, decode) the bytes in \a encoded_grpc_grpclb_response as a \a
  * grpc_grpclb_initial_response */
 grpc_grpclb_initial_response *grpc_grpclb_initial_response_parse(
-    gpr_slice encoded_grpc_grpclb_response);
+    grpc_slice encoded_grpc_grpclb_response);
 
 /** Parse the list of servers from an encoded \a grpc_grpclb_response */
 grpc_grpclb_serverlist *grpc_grpclb_response_parse_serverlist(
-    gpr_slice encoded_grpc_grpclb_response);
+    grpc_slice encoded_grpc_grpclb_response);
 
 /** Return a copy of \a sl. The caller is responsible for calling \a
  * grpc_grpclb_destroy_serverlist on the returned copy. */
diff --git a/src/core/ext/resolver/sockaddr/sockaddr_resolver.c b/src/core/ext/resolver/sockaddr/sockaddr_resolver.c
index 5fec03a..26a650a 100644
--- a/src/core/ext/resolver/sockaddr/sockaddr_resolver.c
+++ b/src/core/ext/resolver/sockaddr/sockaddr_resolver.c
@@ -47,6 +47,7 @@
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/resolve_address.h"
 #include "src/core/lib/iomgr/unix_sockets_posix.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 
 typedef struct {
@@ -169,17 +170,17 @@
     return NULL;
   }
   /* Construct addresses. */
-  gpr_slice path_slice =
-      gpr_slice_new(args->uri->path, strlen(args->uri->path), do_nothing);
-  gpr_slice_buffer path_parts;
-  gpr_slice_buffer_init(&path_parts);
-  gpr_slice_split(path_slice, ",", &path_parts);
+  grpc_slice path_slice =
+      grpc_slice_new(args->uri->path, strlen(args->uri->path), do_nothing);
+  grpc_slice_buffer path_parts;
+  grpc_slice_buffer_init(&path_parts);
+  grpc_slice_split(path_slice, ",", &path_parts);
   grpc_lb_addresses *addresses =
       grpc_lb_addresses_create(path_parts.count, NULL /* user_data_vtable */);
   bool errors_found = false;
   for (size_t i = 0; i < addresses->num_addresses; i++) {
     grpc_uri ith_uri = *args->uri;
-    char *part_str = gpr_dump_slice(path_parts.slices[i], GPR_DUMP_ASCII);
+    char *part_str = grpc_dump_slice(path_parts.slices[i], GPR_DUMP_ASCII);
     ith_uri.path = part_str;
     if (!parse(&ith_uri, &addresses->addresses[i].address)) {
       errors_found = true; /* GPR_TRUE */
@@ -187,8 +188,8 @@
     gpr_free(part_str);
     if (errors_found) break;
   }
-  gpr_slice_buffer_destroy(&path_parts);
-  gpr_slice_unref(path_slice);
+  grpc_slice_buffer_destroy(&path_parts);
+  grpc_slice_unref(path_slice);
   if (errors_found) {
     grpc_lb_addresses_destroy(addresses);
     return NULL;
diff --git a/src/core/ext/transport/chttp2/client/insecure/channel_create.c b/src/core/ext/transport/chttp2/client/insecure/channel_create.c
index 71a06e1..8e03fd8 100644
--- a/src/core/ext/transport/chttp2/client/insecure/channel_create.c
+++ b/src/core/ext/transport/chttp2/client/insecure/channel_create.c
@@ -36,9 +36,9 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
-#include <grpc/support/slice.h>
-#include <grpc/support/slice_buffer.h>
 
 #include "src/core/ext/client_channel/client_channel.h"
 #include "src/core/ext/client_channel/http_connect_handshaker.h"
@@ -64,7 +64,7 @@
   grpc_connect_in_args args;
   grpc_connect_out_args *result;
   grpc_closure initial_string_sent;
-  gpr_slice_buffer initial_string_buffer;
+  grpc_slice_buffer initial_string_buffer;
 
   grpc_endpoint *tcp;
 
@@ -94,7 +94,7 @@
 
 static void on_handshake_done(grpc_exec_ctx *exec_ctx, grpc_endpoint *endpoint,
                               grpc_channel_args *args,
-                              gpr_slice_buffer *read_buffer, void *user_data,
+                              grpc_slice_buffer *read_buffer, void *user_data,
                               grpc_error *error) {
   connector *c = user_data;
   if (error != GRPC_ERROR_NONE) {
@@ -117,12 +117,12 @@
   connector *c = arg;
   grpc_endpoint *tcp = c->tcp;
   if (tcp != NULL) {
-    if (!GPR_SLICE_IS_EMPTY(c->args.initial_connect_string)) {
+    if (!GRPC_SLICE_IS_EMPTY(c->args.initial_connect_string)) {
       grpc_closure_init(&c->initial_string_sent, on_initial_connect_string_sent,
                         c);
-      gpr_slice_buffer_init(&c->initial_string_buffer);
-      gpr_slice_buffer_add(&c->initial_string_buffer,
-                           c->args.initial_connect_string);
+      grpc_slice_buffer_init(&c->initial_string_buffer);
+      grpc_slice_buffer_add(&c->initial_string_buffer,
+                            c->args.initial_connect_string);
       connector_ref(arg);
       grpc_endpoint_write(exec_ctx, tcp, &c->initial_string_buffer,
                           &c->initial_string_sent);
diff --git a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
index d0ac72a..04c88a2 100644
--- a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
+++ b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
@@ -36,9 +36,9 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
-#include <grpc/support/slice.h>
-#include <grpc/support/slice_buffer.h>
 
 #include "src/core/ext/client_channel/client_channel.h"
 #include "src/core/ext/client_channel/http_connect_handshaker.h"
@@ -68,7 +68,7 @@
   grpc_connect_in_args args;
   grpc_connect_out_args *result;
   grpc_closure initial_string_sent;
-  gpr_slice_buffer initial_string_buffer;
+  grpc_slice_buffer initial_string_buffer;
 
   gpr_mu mu;
   grpc_endpoint *connecting_endpoint;
@@ -131,7 +131,7 @@
 
 static void on_handshake_done(grpc_exec_ctx *exec_ctx, grpc_endpoint *endpoint,
                               grpc_channel_args *args,
-                              gpr_slice_buffer *read_buffer, void *user_data,
+                              grpc_slice_buffer *read_buffer, void *user_data,
                               grpc_error *error) {
   connector *c = user_data;
   c->tmp_args = args;
@@ -166,12 +166,12 @@
     GPR_ASSERT(c->connecting_endpoint == NULL);
     c->connecting_endpoint = tcp;
     gpr_mu_unlock(&c->mu);
-    if (!GPR_SLICE_IS_EMPTY(c->args.initial_connect_string)) {
+    if (!GRPC_SLICE_IS_EMPTY(c->args.initial_connect_string)) {
       grpc_closure_init(&c->initial_string_sent, on_initial_connect_string_sent,
                         c);
-      gpr_slice_buffer_init(&c->initial_string_buffer);
-      gpr_slice_buffer_add(&c->initial_string_buffer,
-                           c->args.initial_connect_string);
+      grpc_slice_buffer_init(&c->initial_string_buffer);
+      grpc_slice_buffer_add(&c->initial_string_buffer,
+                            c->args.initial_connect_string);
       grpc_endpoint_write(exec_ctx, tcp, &c->initial_string_buffer,
                           &c->initial_string_sent);
     } else {
diff --git a/src/core/ext/transport/chttp2/server/insecure/server_chttp2.c b/src/core/ext/transport/chttp2/server/insecure/server_chttp2.c
index d42611b..c18d618 100644
--- a/src/core/ext/transport/chttp2/server/insecure/server_chttp2.c
+++ b/src/core/ext/transport/chttp2/server/insecure/server_chttp2.c
@@ -56,7 +56,7 @@
 
 static void on_handshake_done(grpc_exec_ctx *exec_ctx, grpc_endpoint *endpoint,
                               grpc_channel_args *args,
-                              gpr_slice_buffer *read_buffer, void *user_data,
+                              grpc_slice_buffer *read_buffer, void *user_data,
                               grpc_error *error) {
   server_connect_state *state = user_data;
   if (error != GRPC_ERROR_NONE) {
diff --git a/src/core/ext/transport/chttp2/server/secure/server_secure_chttp2.c b/src/core/ext/transport/chttp2/server/secure/server_secure_chttp2.c
index 7ad6870..942638a 100644
--- a/src/core/ext/transport/chttp2/server/secure/server_secure_chttp2.c
+++ b/src/core/ext/transport/chttp2/server/secure/server_secure_chttp2.c
@@ -117,7 +117,7 @@
 
 static void on_handshake_done(grpc_exec_ctx *exec_ctx, grpc_endpoint *endpoint,
                               grpc_channel_args *args,
-                              gpr_slice_buffer *read_buffer, void *user_data,
+                              grpc_slice_buffer *read_buffer, void *user_data,
                               grpc_error *error) {
   server_secure_connect *connection_state = user_data;
   if (error != GRPC_ERROR_NONE) {
diff --git a/src/core/ext/transport/chttp2/transport/bin_decoder.c b/src/core/ext/transport/chttp2/transport/bin_decoder.c
index 2d90b01..3eef80b 100644
--- a/src/core/ext/transport/chttp2/transport/bin_decoder.c
+++ b/src/core/ext/transport/chttp2/transport/bin_decoder.c
@@ -34,6 +34,7 @@
 #include "src/core/ext/transport/chttp2/transport/bin_decoder.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 
 static uint8_t decode_table[] = {
@@ -142,11 +143,11 @@
   return true;
 }
 
-gpr_slice grpc_chttp2_base64_decode(gpr_slice input) {
-  size_t input_length = GPR_SLICE_LENGTH(input);
+grpc_slice grpc_chttp2_base64_decode(grpc_slice input) {
+  size_t input_length = GRPC_SLICE_LENGTH(input);
   size_t output_length = input_length / 4 * 3;
   struct grpc_base64_decode_context ctx;
-  gpr_slice output;
+  grpc_slice output;
 
   if (input_length % 4 != 0) {
     gpr_log(GPR_ERROR,
@@ -158,7 +159,7 @@
   }
 
   if (input_length > 0) {
-    uint8_t *input_end = GPR_SLICE_END_PTR(input);
+    uint8_t *input_end = GRPC_SLICE_END_PTR(input);
     if (*(--input_end) == '=') {
       output_length--;
       if (*(--input_end) == '=') {
@@ -166,30 +167,30 @@
       }
     }
   }
-  output = gpr_slice_malloc(output_length);
+  output = grpc_slice_malloc(output_length);
 
-  ctx.input_cur = GPR_SLICE_START_PTR(input);
-  ctx.input_end = GPR_SLICE_END_PTR(input);
-  ctx.output_cur = GPR_SLICE_START_PTR(output);
-  ctx.output_end = GPR_SLICE_END_PTR(output);
+  ctx.input_cur = GRPC_SLICE_START_PTR(input);
+  ctx.input_end = GRPC_SLICE_END_PTR(input);
+  ctx.output_cur = GRPC_SLICE_START_PTR(output);
+  ctx.output_end = GRPC_SLICE_END_PTR(output);
   ctx.contains_tail = false;
 
   if (!grpc_base64_decode_partial(&ctx)) {
-    char *s = gpr_dump_slice(input, GPR_DUMP_ASCII);
+    char *s = grpc_dump_slice(input, GPR_DUMP_ASCII);
     gpr_log(GPR_ERROR, "Base64 decoding failed, input string:\n%s\n", s);
     gpr_free(s);
-    gpr_slice_unref(output);
+    grpc_slice_unref(output);
     return gpr_empty_slice();
   }
-  GPR_ASSERT(ctx.output_cur == GPR_SLICE_END_PTR(output));
-  GPR_ASSERT(ctx.input_cur == GPR_SLICE_END_PTR(input));
+  GPR_ASSERT(ctx.output_cur == GRPC_SLICE_END_PTR(output));
+  GPR_ASSERT(ctx.input_cur == GRPC_SLICE_END_PTR(input));
   return output;
 }
 
-gpr_slice grpc_chttp2_base64_decode_with_length(gpr_slice input,
-                                                size_t output_length) {
-  size_t input_length = GPR_SLICE_LENGTH(input);
-  gpr_slice output = gpr_slice_malloc(output_length);
+grpc_slice grpc_chttp2_base64_decode_with_length(grpc_slice input,
+                                                 size_t output_length) {
+  size_t input_length = GRPC_SLICE_LENGTH(input);
+  grpc_slice output = grpc_slice_malloc(output_length);
   struct grpc_base64_decode_context ctx;
 
   // The length of a base64 string cannot be 4 * n + 1
@@ -199,7 +200,7 @@
             "grpc_chttp2_base64_decode_with_length has a length of %d, which "
             "has a tail of 1 byte.\n",
             (int)input_length);
-    gpr_slice_unref(output);
+    grpc_slice_unref(output);
     return gpr_empty_slice();
   }
 
@@ -209,24 +210,24 @@
             "than the max possible output length %d.\n",
             (int)output_length,
             (int)(input_length / 4 * 3 + tail_xtra[input_length % 4]));
-    gpr_slice_unref(output);
+    grpc_slice_unref(output);
     return gpr_empty_slice();
   }
 
-  ctx.input_cur = GPR_SLICE_START_PTR(input);
-  ctx.input_end = GPR_SLICE_END_PTR(input);
-  ctx.output_cur = GPR_SLICE_START_PTR(output);
-  ctx.output_end = GPR_SLICE_END_PTR(output);
+  ctx.input_cur = GRPC_SLICE_START_PTR(input);
+  ctx.input_end = GRPC_SLICE_END_PTR(input);
+  ctx.output_cur = GRPC_SLICE_START_PTR(output);
+  ctx.output_end = GRPC_SLICE_END_PTR(output);
   ctx.contains_tail = true;
 
   if (!grpc_base64_decode_partial(&ctx)) {
-    char *s = gpr_dump_slice(input, GPR_DUMP_ASCII);
+    char *s = grpc_dump_slice(input, GPR_DUMP_ASCII);
     gpr_log(GPR_ERROR, "Base64 decoding failed, input string:\n%s\n", s);
     gpr_free(s);
-    gpr_slice_unref(output);
+    grpc_slice_unref(output);
     return gpr_empty_slice();
   }
-  GPR_ASSERT(ctx.output_cur == GPR_SLICE_END_PTR(output));
-  GPR_ASSERT(ctx.input_cur <= GPR_SLICE_END_PTR(input));
+  GPR_ASSERT(ctx.output_cur == GRPC_SLICE_END_PTR(output));
+  GPR_ASSERT(ctx.input_cur <= GRPC_SLICE_END_PTR(input));
   return output;
 }
diff --git a/src/core/ext/transport/chttp2/transport/bin_decoder.h b/src/core/ext/transport/chttp2/transport/bin_decoder.h
index b9d40c9..83a90be 100644
--- a/src/core/ext/transport/chttp2/transport/bin_decoder.h
+++ b/src/core/ext/transport/chttp2/transport/bin_decoder.h
@@ -34,7 +34,7 @@
 #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_DECODER_H
 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_DECODER_H
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include <stdbool.h>
 
 struct grpc_base64_decode_context {
@@ -55,12 +55,12 @@
 
 /* base64 decode a slice with pad chars. Returns a new slice, does not take
    ownership of the input. Returns an empty slice if decoding is failed. */
-gpr_slice grpc_chttp2_base64_decode(gpr_slice input);
+grpc_slice grpc_chttp2_base64_decode(grpc_slice input);
 
 /* base64 decode a slice without pad chars, data length is needed. Returns a new
    slice, does not take ownership of the input. Returns an empty slice if
    decoding is failed. */
-gpr_slice grpc_chttp2_base64_decode_with_length(gpr_slice input,
-                                                size_t output_length);
+grpc_slice grpc_chttp2_base64_decode_with_length(grpc_slice input,
+                                                 size_t output_length);
 
 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_DECODER_H */
diff --git a/src/core/ext/transport/chttp2/transport/bin_encoder.c b/src/core/ext/transport/chttp2/transport/bin_encoder.c
index 1b43c28..af25a43 100644
--- a/src/core/ext/transport/chttp2/transport/bin_encoder.c
+++ b/src/core/ext/transport/chttp2/transport/bin_encoder.c
@@ -61,14 +61,14 @@
 
 static const uint8_t tail_xtra[3] = {0, 2, 3};
 
-gpr_slice grpc_chttp2_base64_encode(gpr_slice input) {
-  size_t input_length = GPR_SLICE_LENGTH(input);
+grpc_slice grpc_chttp2_base64_encode(grpc_slice input) {
+  size_t input_length = GRPC_SLICE_LENGTH(input);
   size_t input_triplets = input_length / 3;
   size_t tail_case = input_length % 3;
   size_t output_length = input_triplets * 4 + tail_xtra[tail_case];
-  gpr_slice output = gpr_slice_malloc(output_length);
-  uint8_t *in = GPR_SLICE_START_PTR(input);
-  char *out = (char *)GPR_SLICE_START_PTR(output);
+  grpc_slice output = grpc_slice_malloc(output_length);
+  uint8_t *in = GRPC_SLICE_START_PTR(input);
+  char *out = (char *)GRPC_SLICE_START_PTR(output);
   size_t i;
 
   /* encode full triplets */
@@ -100,27 +100,29 @@
       break;
   }
 
-  GPR_ASSERT(out == (char *)GPR_SLICE_END_PTR(output));
-  GPR_ASSERT(in == GPR_SLICE_END_PTR(input));
+  GPR_ASSERT(out == (char *)GRPC_SLICE_END_PTR(output));
+  GPR_ASSERT(in == GRPC_SLICE_END_PTR(input));
   return output;
 }
 
-gpr_slice grpc_chttp2_huffman_compress(gpr_slice input) {
+grpc_slice grpc_chttp2_huffman_compress(grpc_slice input) {
   size_t nbits;
   uint8_t *in;
   uint8_t *out;
-  gpr_slice output;
+  grpc_slice output;
   uint32_t temp = 0;
   uint32_t temp_length = 0;
 
   nbits = 0;
-  for (in = GPR_SLICE_START_PTR(input); in != GPR_SLICE_END_PTR(input); ++in) {
+  for (in = GRPC_SLICE_START_PTR(input); in != GRPC_SLICE_END_PTR(input);
+       ++in) {
     nbits += grpc_chttp2_huffsyms[*in].length;
   }
 
-  output = gpr_slice_malloc(nbits / 8 + (nbits % 8 != 0));
-  out = GPR_SLICE_START_PTR(output);
-  for (in = GPR_SLICE_START_PTR(input); in != GPR_SLICE_END_PTR(input); ++in) {
+  output = grpc_slice_malloc(nbits / 8 + (nbits % 8 != 0));
+  out = GRPC_SLICE_START_PTR(output);
+  for (in = GRPC_SLICE_START_PTR(input); in != GRPC_SLICE_END_PTR(input);
+       ++in) {
     int sym = *in;
     temp <<= grpc_chttp2_huffsyms[sym].length;
     temp |= grpc_chttp2_huffsyms[sym].bits;
@@ -141,7 +143,7 @@
                        (uint8_t)(0xffu >> temp_length));
   }
 
-  GPR_ASSERT(out == GPR_SLICE_END_PTR(output));
+  GPR_ASSERT(out == GRPC_SLICE_END_PTR(output));
 
   return output;
 }
@@ -175,16 +177,17 @@
   enc_flush_some(out);
 }
 
-gpr_slice grpc_chttp2_base64_encode_and_huffman_compress_impl(gpr_slice input) {
-  size_t input_length = GPR_SLICE_LENGTH(input);
+grpc_slice grpc_chttp2_base64_encode_and_huffman_compress_impl(
+    grpc_slice input) {
+  size_t input_length = GRPC_SLICE_LENGTH(input);
   size_t input_triplets = input_length / 3;
   size_t tail_case = input_length % 3;
   size_t output_syms = input_triplets * 4 + tail_xtra[tail_case];
   size_t max_output_bits = 11 * output_syms;
   size_t max_output_length = max_output_bits / 8 + (max_output_bits % 8 != 0);
-  gpr_slice output = gpr_slice_malloc(max_output_length);
-  uint8_t *in = GPR_SLICE_START_PTR(input);
-  uint8_t *start_out = GPR_SLICE_START_PTR(output);
+  grpc_slice output = grpc_slice_malloc(max_output_length);
+  uint8_t *in = GRPC_SLICE_START_PTR(input);
+  uint8_t *start_out = GRPC_SLICE_START_PTR(output);
   huff_out out;
   size_t i;
 
@@ -231,9 +234,9 @@
                            (uint8_t)(0xffu >> out.temp_length));
   }
 
-  GPR_ASSERT(out.out <= GPR_SLICE_END_PTR(output));
-  GPR_SLICE_SET_LENGTH(output, out.out - start_out);
+  GPR_ASSERT(out.out <= GRPC_SLICE_END_PTR(output));
+  GRPC_SLICE_SET_LENGTH(output, out.out - start_out);
 
-  GPR_ASSERT(in == GPR_SLICE_END_PTR(input));
+  GPR_ASSERT(in == GRPC_SLICE_END_PTR(input));
   return output;
 }
diff --git a/src/core/ext/transport/chttp2/transport/bin_encoder.h b/src/core/ext/transport/chttp2/transport/bin_encoder.h
index 61ebbaf..9e143b4 100644
--- a/src/core/ext/transport/chttp2/transport/bin_encoder.h
+++ b/src/core/ext/transport/chttp2/transport/bin_encoder.h
@@ -34,21 +34,22 @@
 #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_ENCODER_H
 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_ENCODER_H
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 
 /* base64 encode a slice. Returns a new slice, does not take ownership of the
    input */
-gpr_slice grpc_chttp2_base64_encode(gpr_slice input);
+grpc_slice grpc_chttp2_base64_encode(grpc_slice input);
 
 /* Compress a slice with the static huffman encoder detailed in the hpack
    standard. Returns a new slice, does not take ownership of the input */
-gpr_slice grpc_chttp2_huffman_compress(gpr_slice input);
+grpc_slice grpc_chttp2_huffman_compress(grpc_slice input);
 
 /* equivalent to:
-   gpr_slice x = grpc_chttp2_base64_encode(input);
-   gpr_slice y = grpc_chttp2_huffman_compress(x);
-   gpr_slice_unref(x);
+   grpc_slice x = grpc_chttp2_base64_encode(input);
+   grpc_slice y = grpc_chttp2_huffman_compress(x);
+   grpc_slice_unref(x);
    return y; */
-gpr_slice grpc_chttp2_base64_encode_and_huffman_compress_impl(gpr_slice input);
+grpc_slice grpc_chttp2_base64_encode_and_huffman_compress_impl(
+    grpc_slice input);
 
 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_ENCODER_H */
diff --git a/src/core/ext/transport/chttp2/transport/chttp2_transport.c b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
index 4a9f806..1ffa916 100644
--- a/src/core/ext/transport/chttp2/transport/chttp2_transport.c
+++ b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
@@ -38,9 +38,9 @@
 #include <stdio.h>
 #include <string.h>
 
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
 
@@ -51,6 +51,7 @@
 #include "src/core/lib/http/parser.h"
 #include "src/core/lib/iomgr/workqueue.h"
 #include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/transport/static_metadata.h"
 #include "src/core/lib/transport/timeout_encoding.h"
@@ -143,12 +144,12 @@
 
   grpc_endpoint_destroy(exec_ctx, t->ep);
 
-  gpr_slice_buffer_destroy(&t->qbuf);
+  grpc_slice_buffer_destroy(&t->qbuf);
 
-  gpr_slice_buffer_destroy(&t->outbuf);
+  grpc_slice_buffer_destroy(&t->outbuf);
   grpc_chttp2_hpack_compressor_destroy(&t->hpack_compressor);
 
-  gpr_slice_buffer_destroy(&t->read_buffer);
+  grpc_slice_buffer_destroy(&t->read_buffer);
   grpc_chttp2_hpack_parser_destroy(&t->hpack_parser);
   grpc_chttp2_goaway_parser_destroy(&t->goaway_parser);
 
@@ -243,9 +244,9 @@
       &t->channel_callback.state_tracker, GRPC_CHANNEL_READY,
       is_client ? "client_transport" : "server_transport");
 
-  gpr_slice_buffer_init(&t->qbuf);
+  grpc_slice_buffer_init(&t->qbuf);
 
-  gpr_slice_buffer_init(&t->outbuf);
+  grpc_slice_buffer_init(&t->outbuf);
   grpc_chttp2_hpack_compressor_init(&t->hpack_compressor);
 
   grpc_closure_init(&t->write_action_begin_locked, write_action_begin_locked,
@@ -264,7 +265,7 @@
   grpc_chttp2_goaway_parser_init(&t->goaway_parser);
   grpc_chttp2_hpack_parser_init(&t->hpack_parser);
 
-  gpr_slice_buffer_init(&t->read_buffer);
+  grpc_slice_buffer_init(&t->read_buffer);
 
   /* 8 is a random stab in the dark as to a good initial size: it's small enough
      that it shouldn't waste memory for infrequently used connections, yet
@@ -286,8 +287,8 @@
   t->sent_local_settings = 0;
 
   if (is_client) {
-    gpr_slice_buffer_add(&t->outbuf, gpr_slice_from_copied_string(
-                                         GRPC_CHTTP2_CLIENT_CONNECT_STRING));
+    grpc_slice_buffer_add(&t->outbuf, grpc_slice_from_copied_string(
+                                          GRPC_CHTTP2_CLIENT_CONNECT_STRING));
     grpc_chttp2_initiate_write(exec_ctx, t, false, "initial_write");
   }
 
@@ -471,7 +472,7 @@
   grpc_chttp2_incoming_metadata_buffer_init(&s->metadata_buffer[0]);
   grpc_chttp2_incoming_metadata_buffer_init(&s->metadata_buffer[1]);
   grpc_chttp2_data_parser_init(&s->data_parser);
-  gpr_slice_buffer_init(&s->flow_controlled_buffer);
+  grpc_slice_buffer_init(&s->flow_controlled_buffer);
   s->deadline = gpr_inf_future(GPR_CLOCK_MONOTONIC);
   grpc_closure_init(&s->complete_fetch, complete_fetch, s);
   grpc_closure_init(&s->complete_fetch_locked, complete_fetch_locked, s);
@@ -531,7 +532,7 @@
   grpc_chttp2_data_parser_destroy(exec_ctx, &s->data_parser);
   grpc_chttp2_incoming_metadata_buffer_destroy(&s->metadata_buffer[0]);
   grpc_chttp2_incoming_metadata_buffer_destroy(&s->metadata_buffer[1]);
-  gpr_slice_buffer_destroy(&s->flow_controlled_buffer);
+  grpc_slice_buffer_destroy(&s->flow_controlled_buffer);
   GRPC_ERROR_UNREF(s->read_closed_error);
   GRPC_ERROR_UNREF(s->write_closed_error);
 
@@ -756,11 +757,11 @@
 void grpc_chttp2_add_incoming_goaway(grpc_exec_ctx *exec_ctx,
                                      grpc_chttp2_transport *t,
                                      uint32_t goaway_error,
-                                     gpr_slice goaway_text) {
-  char *msg = gpr_dump_slice(goaway_text, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+                                     grpc_slice goaway_text) {
+  char *msg = grpc_dump_slice(goaway_text, GPR_DUMP_HEX | GPR_DUMP_ASCII);
   GRPC_CHTTP2_IF_TRACING(
       gpr_log(GPR_DEBUG, "got goaway [%d]: %s", goaway_error, msg));
-  gpr_slice_unref(goaway_text);
+  grpc_slice_unref(goaway_text);
   t->seen_goaway = 1;
   /* lie: use transient failure from the transport to indicate goaway has been
    * received */
@@ -884,8 +885,8 @@
                                      grpc_chttp2_transport *t,
                                      grpc_chttp2_stream *s) {
   s->fetched_send_message_length +=
-      (uint32_t)GPR_SLICE_LENGTH(s->fetching_slice);
-  gpr_slice_buffer_add(&s->flow_controlled_buffer, s->fetching_slice);
+      (uint32_t)GRPC_SLICE_LENGTH(s->fetching_slice);
+  grpc_slice_buffer_add(&s->flow_controlled_buffer, s->fetching_slice);
   if (s->id != 0) {
     grpc_chttp2_become_writable(exec_ctx, t, s, true, "op.send_message");
   }
@@ -1056,7 +1057,7 @@
     } else {
       GPR_ASSERT(s->fetching_send_message == NULL);
       uint8_t *frame_hdr =
-          gpr_slice_buffer_tiny_add(&s->flow_controlled_buffer, 5);
+          grpc_slice_buffer_tiny_add(&s->flow_controlled_buffer, 5);
       uint32_t flags = op->send_message->flags;
       frame_hdr[0] = (flags & GRPC_WRITE_INTERNAL_COMPRESS) != 0;
       size_t len = op->send_message->length;
@@ -1196,7 +1197,7 @@
   p->id[7] = (uint8_t)(t->ping_counter & 0xff);
   t->ping_counter++;
   p->on_recv = on_recv;
-  gpr_slice_buffer_add(&t->qbuf, grpc_chttp2_ping_create(0, p->id));
+  grpc_slice_buffer_add(&t->qbuf, grpc_chttp2_ping_create(0, p->id));
   grpc_chttp2_initiate_write(exec_ctx, t, true, "send_ping");
 }
 
@@ -1220,7 +1221,7 @@
 }
 
 static void send_goaway(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
-                        grpc_chttp2_error_code error, gpr_slice data) {
+                        grpc_chttp2_error_code error, grpc_slice data) {
   t->sent_goaway_state = GRPC_CHTTP2_GOAWAY_SEND_SCHEDULED;
   grpc_chttp2_goaway_append(t->last_new_stream_id, (uint32_t)error, data,
                             &t->qbuf);
@@ -1243,7 +1244,7 @@
   if (op->send_goaway) {
     send_goaway(exec_ctx, t,
                 grpc_chttp2_grpc_status_to_http2_error(op->goaway_status),
-                gpr_slice_ref(*op->goaway_message));
+                grpc_slice_ref(*op->goaway_message));
   }
 
   if (op->set_accept_stream) {
@@ -1432,7 +1433,7 @@
                             &grpc_status);
 
     if (s->id != 0) {
-      gpr_slice_buffer_add(
+      grpc_slice_buffer_add(
           &t->qbuf, grpc_chttp2_rst_stream_create(s->id, (uint32_t)http_error,
                                                   &s->stats.outgoing));
       grpc_chttp2_initiate_write(exec_ctx, t, false, "rst_stream");
@@ -1445,7 +1446,7 @@
       free_msg = true;
       msg = grpc_error_string(due_to_error);
     }
-    gpr_slice msg_slice = gpr_slice_from_copied_string(msg);
+    grpc_slice msg_slice = grpc_slice_from_copied_string(msg);
     grpc_chttp2_fake_status(exec_ctx, t, s, grpc_status, &msg_slice);
     if (free_msg) grpc_error_free_string(msg);
   }
@@ -1458,7 +1459,7 @@
 
 void grpc_chttp2_fake_status(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
                              grpc_chttp2_stream *s, grpc_status_code status,
-                             gpr_slice *slice) {
+                             grpc_slice *slice) {
   if (status != GRPC_STATUS_OK) {
     s->seen_error = true;
   }
@@ -1481,13 +1482,13 @@
           &s->metadata_buffer[1],
           grpc_mdelem_from_metadata_strings(
               GRPC_MDSTR_GRPC_MESSAGE,
-              grpc_mdstr_from_slice(gpr_slice_ref(*slice))));
+              grpc_mdstr_from_slice(grpc_slice_ref(*slice))));
     }
     s->published_metadata[1] = GRPC_METADATA_SYNTHESIZED_FROM_FAKE;
     grpc_chttp2_maybe_complete_recv_trailing_metadata(exec_ctx, t, s);
   }
   if (slice) {
-    gpr_slice_unref(*slice);
+    grpc_slice_unref(*slice);
   }
 }
 
@@ -1584,9 +1585,9 @@
 
 static void close_from_api(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
                            grpc_chttp2_stream *s, grpc_error *error) {
-  gpr_slice hdr;
-  gpr_slice status_hdr;
-  gpr_slice message_pfx;
+  grpc_slice hdr;
+  grpc_slice status_hdr;
+  grpc_slice message_pfx;
   uint8_t *p;
   uint32_t len = 0;
   grpc_status_code grpc_status;
@@ -1605,8 +1606,8 @@
        time we got around to sending this, so instead we ignore HPACK
        compression
        and just write the uncompressed bytes onto the wire. */
-    status_hdr = gpr_slice_malloc(15 + (grpc_status >= 10));
-    p = GPR_SLICE_START_PTR(status_hdr);
+    status_hdr = grpc_slice_malloc(15 + (grpc_status >= 10));
+    p = GRPC_SLICE_START_PTR(status_hdr);
     *p++ = 0x40; /* literal header */
     *p++ = 11;   /* len(grpc-status) */
     *p++ = 'g';
@@ -1628,8 +1629,8 @@
       *p++ = (uint8_t)('0' + (grpc_status / 10));
       *p++ = (uint8_t)('0' + (grpc_status % 10));
     }
-    GPR_ASSERT(p == GPR_SLICE_END_PTR(status_hdr));
-    len += (uint32_t)GPR_SLICE_LENGTH(status_hdr);
+    GPR_ASSERT(p == GRPC_SLICE_END_PTR(status_hdr));
+    len += (uint32_t)GRPC_SLICE_LENGTH(status_hdr);
 
     const char *optional_message =
         grpc_error_get_str(error, GRPC_ERROR_STR_GRPC_MESSAGE);
@@ -1637,8 +1638,8 @@
     if (optional_message != NULL) {
       size_t msg_len = strlen(optional_message);
       GPR_ASSERT(msg_len < 127);
-      message_pfx = gpr_slice_malloc(15);
-      p = GPR_SLICE_START_PTR(message_pfx);
+      message_pfx = grpc_slice_malloc(15);
+      p = GRPC_SLICE_START_PTR(message_pfx);
       *p++ = 0x40;
       *p++ = 12; /* len(grpc-message) */
       *p++ = 'g';
@@ -1654,13 +1655,13 @@
       *p++ = 'g';
       *p++ = 'e';
       *p++ = (uint8_t)msg_len;
-      GPR_ASSERT(p == GPR_SLICE_END_PTR(message_pfx));
-      len += (uint32_t)GPR_SLICE_LENGTH(message_pfx);
+      GPR_ASSERT(p == GRPC_SLICE_END_PTR(message_pfx));
+      len += (uint32_t)GRPC_SLICE_LENGTH(message_pfx);
       len += (uint32_t)msg_len;
     }
 
-    hdr = gpr_slice_malloc(9);
-    p = GPR_SLICE_START_PTR(hdr);
+    hdr = grpc_slice_malloc(9);
+    p = GRPC_SLICE_START_PTR(hdr);
     *p++ = (uint8_t)(len >> 16);
     *p++ = (uint8_t)(len >> 8);
     *p++ = (uint8_t)(len);
@@ -1670,16 +1671,16 @@
     *p++ = (uint8_t)(s->id >> 16);
     *p++ = (uint8_t)(s->id >> 8);
     *p++ = (uint8_t)(s->id);
-    GPR_ASSERT(p == GPR_SLICE_END_PTR(hdr));
+    GPR_ASSERT(p == GRPC_SLICE_END_PTR(hdr));
 
-    gpr_slice_buffer_add(&t->qbuf, hdr);
-    gpr_slice_buffer_add(&t->qbuf, status_hdr);
+    grpc_slice_buffer_add(&t->qbuf, hdr);
+    grpc_slice_buffer_add(&t->qbuf, status_hdr);
     if (optional_message) {
-      gpr_slice_buffer_add(&t->qbuf, message_pfx);
-      gpr_slice_buffer_add(&t->qbuf,
-                           gpr_slice_from_copied_string(optional_message));
+      grpc_slice_buffer_add(&t->qbuf, message_pfx);
+      grpc_slice_buffer_add(&t->qbuf,
+                            grpc_slice_from_copied_string(optional_message));
     }
-    gpr_slice_buffer_add(
+    grpc_slice_buffer_add(
         &t->qbuf, grpc_chttp2_rst_stream_create(s->id, GRPC_CHTTP2_NO_ERROR,
                                                 &s->stats.outgoing));
   }
@@ -1690,7 +1691,7 @@
     free_msg = true;
     msg = grpc_error_string(error);
   }
-  gpr_slice msg_slice = gpr_slice_from_copied_string(msg);
+  grpc_slice msg_slice = grpc_slice_from_copied_string(msg);
   grpc_chttp2_fake_status(exec_ctx, t, s, grpc_status, &msg_slice);
   if (free_msg) grpc_error_free_string(msg);
 
@@ -1861,7 +1862,7 @@
     keep_reading = true;
     GRPC_CHTTP2_REF_TRANSPORT(t, "keep_reading");
   }
-  gpr_slice_buffer_reset_and_unref(&t->read_buffer);
+  grpc_slice_buffer_reset_and_unref(&t->read_buffer);
 
   if (keep_reading) {
     grpc_endpoint_read(exec_ctx, t->ep, &t->read_buffer, &t->read_action_begin);
@@ -1915,7 +1916,7 @@
                                        grpc_chttp2_incoming_byte_stream *bs) {
   if (gpr_unref(&bs->refs)) {
     GRPC_ERROR_UNREF(bs->error);
-    gpr_slice_buffer_destroy(&bs->slices);
+    grpc_slice_buffer_destroy(&bs->slices);
     gpr_mu_destroy(&bs->slice_mu);
     gpr_free(bs);
   }
@@ -1977,7 +1978,7 @@
   }
   gpr_mu_lock(&bs->slice_mu);
   if (bs->slices.count > 0) {
-    *bs->next_action.slice = gpr_slice_buffer_take_first(&bs->slices);
+    *bs->next_action.slice = grpc_slice_buffer_take_first(&bs->slices);
     grpc_closure_run(exec_ctx, bs->next_action.on_complete, GRPC_ERROR_NONE);
   } else if (bs->error != GRPC_ERROR_NONE) {
     grpc_closure_run(exec_ctx, bs->next_action.on_complete,
@@ -1992,7 +1993,7 @@
 
 static int incoming_byte_stream_next(grpc_exec_ctx *exec_ctx,
                                      grpc_byte_stream *byte_stream,
-                                     gpr_slice *slice, size_t max_size_hint,
+                                     grpc_slice *slice, size_t max_size_hint,
                                      grpc_closure *on_complete) {
   GPR_TIMER_BEGIN("incoming_byte_stream_next", 0);
   grpc_chttp2_incoming_byte_stream *bs =
@@ -2045,19 +2046,19 @@
 
 void grpc_chttp2_incoming_byte_stream_push(grpc_exec_ctx *exec_ctx,
                                            grpc_chttp2_incoming_byte_stream *bs,
-                                           gpr_slice slice) {
+                                           grpc_slice slice) {
   gpr_mu_lock(&bs->slice_mu);
-  if (bs->remaining_bytes < GPR_SLICE_LENGTH(slice)) {
+  if (bs->remaining_bytes < GRPC_SLICE_LENGTH(slice)) {
     incoming_byte_stream_publish_error(
         exec_ctx, bs, GRPC_ERROR_CREATE("Too many bytes in stream"));
   } else {
-    bs->remaining_bytes -= (uint32_t)GPR_SLICE_LENGTH(slice);
+    bs->remaining_bytes -= (uint32_t)GRPC_SLICE_LENGTH(slice);
     if (bs->on_next != NULL) {
       *bs->next = slice;
       grpc_exec_ctx_sched(exec_ctx, bs->on_next, GRPC_ERROR_NONE, NULL);
       bs->on_next = NULL;
     } else {
-      gpr_slice_buffer_add(&bs->slices, slice);
+      grpc_slice_buffer_add(&bs->slices, slice);
     }
   }
   gpr_mu_unlock(&bs->slice_mu);
@@ -2095,7 +2096,7 @@
   incoming_byte_stream->transport = t;
   incoming_byte_stream->stream = s;
   gpr_ref(&incoming_byte_stream->stream->active_streams);
-  gpr_slice_buffer_init(&incoming_byte_stream->slices);
+  grpc_slice_buffer_init(&incoming_byte_stream->slices);
   incoming_byte_stream->on_next = NULL;
   incoming_byte_stream->is_tail = 1;
   incoming_byte_stream->error = GRPC_ERROR_NONE;
@@ -2163,7 +2164,7 @@
               t->peer_string);
     }
     send_goaway(exec_ctx, t, GRPC_CHTTP2_ENHANCE_YOUR_CALM,
-                gpr_slice_from_static_string("Buffers full"));
+                grpc_slice_from_static_string("Buffers full"));
   } else if (error == GRPC_ERROR_NONE && grpc_resource_quota_trace) {
     gpr_log(GPR_DEBUG,
             "HTTP2: %s - skip benign reclamation, there are still %" PRIdPTR
@@ -2314,12 +2315,12 @@
 
 void grpc_chttp2_transport_start_reading(grpc_exec_ctx *exec_ctx,
                                          grpc_transport *transport,
-                                         gpr_slice_buffer *read_buffer) {
+                                         grpc_slice_buffer *read_buffer) {
   grpc_chttp2_transport *t = (grpc_chttp2_transport *)transport;
   GRPC_CHTTP2_REF_TRANSPORT(
       t, "reading_action"); /* matches unref inside reading_action */
   if (read_buffer != NULL) {
-    gpr_slice_buffer_move_into(read_buffer, &t->read_buffer);
+    grpc_slice_buffer_move_into(read_buffer, &t->read_buffer);
     gpr_free(read_buffer);
   }
   read_action_begin(exec_ctx, t, GRPC_ERROR_NONE);
diff --git a/src/core/ext/transport/chttp2/transport/chttp2_transport.h b/src/core/ext/transport/chttp2/transport/chttp2_transport.h
index 4e2d095..c372174 100644
--- a/src/core/ext/transport/chttp2/transport/chttp2_transport.h
+++ b/src/core/ext/transport/chttp2/transport/chttp2_transport.h
@@ -48,6 +48,6 @@
 /// leftover bytes previously read from the endpoint (e.g., by handshakers).
 void grpc_chttp2_transport_start_reading(grpc_exec_ctx *exec_ctx,
                                          grpc_transport *transport,
-                                         gpr_slice_buffer *read_buffer);
+                                         grpc_slice_buffer *read_buffer);
 
 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_CHTTP2_TRANSPORT_H */
diff --git a/src/core/ext/transport/chttp2/transport/frame.h b/src/core/ext/transport/chttp2/transport/frame.h
index 1e444a9..ffd4d96 100644
--- a/src/core/ext/transport/chttp2/transport/frame.h
+++ b/src/core/ext/transport/chttp2/transport/frame.h
@@ -34,8 +34,8 @@
 #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_H
 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_H
 
+#include <grpc/slice.h>
 #include <grpc/support/port_platform.h>
-#include <grpc/support/slice.h>
 
 #include "src/core/lib/iomgr/error.h"
 
diff --git a/src/core/ext/transport/chttp2/transport/frame_data.c b/src/core/ext/transport/chttp2/transport/frame_data.c
index 8668816..f9b9e1b 100644
--- a/src/core/ext/transport/chttp2/transport/frame_data.c
+++ b/src/core/ext/transport/chttp2/transport/frame_data.c
@@ -40,6 +40,7 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
 #include "src/core/ext/transport/chttp2/transport/internal.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/transport/transport.h"
 
@@ -112,16 +113,16 @@
   return out;
 }
 
-void grpc_chttp2_encode_data(uint32_t id, gpr_slice_buffer *inbuf,
+void grpc_chttp2_encode_data(uint32_t id, grpc_slice_buffer *inbuf,
                              uint32_t write_bytes, int is_eof,
                              grpc_transport_one_way_stats *stats,
-                             gpr_slice_buffer *outbuf) {
-  gpr_slice hdr;
+                             grpc_slice_buffer *outbuf) {
+  grpc_slice hdr;
   uint8_t *p;
   static const size_t header_size = 9;
 
-  hdr = gpr_slice_malloc(header_size);
-  p = GPR_SLICE_START_PTR(hdr);
+  hdr = grpc_slice_malloc(header_size);
+  p = GRPC_SLICE_START_PTR(hdr);
   GPR_ASSERT(write_bytes < (1 << 24));
   *p++ = (uint8_t)(write_bytes >> 16);
   *p++ = (uint8_t)(write_bytes >> 8);
@@ -132,9 +133,9 @@
   *p++ = (uint8_t)(id >> 16);
   *p++ = (uint8_t)(id >> 8);
   *p++ = (uint8_t)(id);
-  gpr_slice_buffer_add(outbuf, hdr);
+  grpc_slice_buffer_add(outbuf, hdr);
 
-  gpr_slice_buffer_move_first(inbuf, write_bytes, outbuf);
+  grpc_slice_buffer_move_first(inbuf, write_bytes, outbuf);
 
   stats->framing_bytes += header_size;
   stats->data_bytes += write_bytes;
@@ -143,9 +144,9 @@
 static grpc_error *parse_inner(grpc_exec_ctx *exec_ctx,
                                grpc_chttp2_data_parser *p,
                                grpc_chttp2_transport *t, grpc_chttp2_stream *s,
-                               gpr_slice slice) {
-  uint8_t *const beg = GPR_SLICE_START_PTR(slice);
-  uint8_t *const end = GPR_SLICE_END_PTR(slice);
+                               grpc_slice slice) {
+  uint8_t *const beg = GRPC_SLICE_START_PTR(slice);
+  uint8_t *const end = GRPC_SLICE_END_PTR(slice);
   uint8_t *cur = beg;
   uint32_t message_flags;
   grpc_chttp2_incoming_byte_stream *incoming_byte_stream;
@@ -176,7 +177,7 @@
           p->error = grpc_error_set_int(p->error, GRPC_ERROR_INT_STREAM_ID,
                                         (intptr_t)s->id);
           gpr_free(msg);
-          msg = gpr_dump_slice(slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+          msg = grpc_dump_slice(slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
           p->error =
               grpc_error_set_str(p->error, GRPC_ERROR_STR_RAW_BYTES, msg);
           gpr_free(msg);
@@ -236,7 +237,7 @@
         s->stats.incoming.data_bytes += p->frame_size;
         grpc_chttp2_incoming_byte_stream_push(
             exec_ctx, p->parsing_frame,
-            gpr_slice_sub(slice, (size_t)(cur - beg), (size_t)(end - beg)));
+            grpc_slice_sub(slice, (size_t)(cur - beg), (size_t)(end - beg)));
         grpc_chttp2_incoming_byte_stream_finished(exec_ctx, p->parsing_frame,
                                                   GRPC_ERROR_NONE);
         p->parsing_frame = NULL;
@@ -246,8 +247,8 @@
         s->stats.incoming.data_bytes += p->frame_size;
         grpc_chttp2_incoming_byte_stream_push(
             exec_ctx, p->parsing_frame,
-            gpr_slice_sub(slice, (size_t)(cur - beg),
-                          (size_t)(cur + p->frame_size - beg)));
+            grpc_slice_sub(slice, (size_t)(cur - beg),
+                           (size_t)(cur + p->frame_size - beg)));
         grpc_chttp2_incoming_byte_stream_finished(exec_ctx, p->parsing_frame,
                                                   GRPC_ERROR_NONE);
         p->parsing_frame = NULL;
@@ -257,7 +258,7 @@
         GPR_ASSERT(remaining <= p->frame_size);
         grpc_chttp2_incoming_byte_stream_push(
             exec_ctx, p->parsing_frame,
-            gpr_slice_sub(slice, (size_t)(cur - beg), (size_t)(end - beg)));
+            grpc_slice_sub(slice, (size_t)(cur - beg), (size_t)(end - beg)));
         p->frame_size -= remaining;
         s->stats.incoming.data_bytes += remaining;
         return GRPC_ERROR_NONE;
@@ -270,7 +271,7 @@
 grpc_error *grpc_chttp2_data_parser_parse(grpc_exec_ctx *exec_ctx, void *parser,
                                           grpc_chttp2_transport *t,
                                           grpc_chttp2_stream *s,
-                                          gpr_slice slice, int is_last) {
+                                          grpc_slice slice, int is_last) {
   grpc_chttp2_data_parser *p = parser;
   grpc_error *error = parse_inner(exec_ctx, p, t, s, slice);
 
diff --git a/src/core/ext/transport/chttp2/transport/frame_data.h b/src/core/ext/transport/chttp2/transport/frame_data.h
index eb2d97d..264ad14 100644
--- a/src/core/ext/transport/chttp2/transport/frame_data.h
+++ b/src/core/ext/transport/chttp2/transport/frame_data.h
@@ -36,8 +36,8 @@
 
 /* Parser for GRPC streams embedded in DATA frames */
 
-#include <grpc/support/slice.h>
-#include <grpc/support/slice_buffer.h>
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
 #include "src/core/ext/transport/chttp2/transport/frame.h"
 #include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/transport/byte_stream.h"
@@ -94,11 +94,11 @@
 grpc_error *grpc_chttp2_data_parser_parse(grpc_exec_ctx *exec_ctx, void *parser,
                                           grpc_chttp2_transport *t,
                                           grpc_chttp2_stream *s,
-                                          gpr_slice slice, int is_last);
+                                          grpc_slice slice, int is_last);
 
-void grpc_chttp2_encode_data(uint32_t id, gpr_slice_buffer *inbuf,
+void grpc_chttp2_encode_data(uint32_t id, grpc_slice_buffer *inbuf,
                              uint32_t write_bytes, int is_eof,
                              grpc_transport_one_way_stats *stats,
-                             gpr_slice_buffer *outbuf);
+                             grpc_slice_buffer *outbuf);
 
 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_DATA_H */
diff --git a/src/core/ext/transport/chttp2/transport/frame_goaway.c b/src/core/ext/transport/chttp2/transport/frame_goaway.c
index 33d2269..d99d486 100644
--- a/src/core/ext/transport/chttp2/transport/frame_goaway.c
+++ b/src/core/ext/transport/chttp2/transport/frame_goaway.c
@@ -71,9 +71,9 @@
                                             void *parser,
                                             grpc_chttp2_transport *t,
                                             grpc_chttp2_stream *s,
-                                            gpr_slice slice, int is_last) {
-  uint8_t *const beg = GPR_SLICE_START_PTR(slice);
-  uint8_t *const end = GPR_SLICE_END_PTR(slice);
+                                            grpc_slice slice, int is_last) {
+  uint8_t *const beg = GRPC_SLICE_START_PTR(slice);
+  uint8_t *const end = GRPC_SLICE_END_PTR(slice);
   uint8_t *cur = beg;
   grpc_chttp2_goaway_parser *p = parser;
 
@@ -151,7 +151,7 @@
       if (is_last) {
         grpc_chttp2_add_incoming_goaway(
             exec_ctx, t, (uint32_t)p->error_code,
-            gpr_slice_new(p->debug_data, p->debug_length, gpr_free));
+            grpc_slice_new(p->debug_data, p->debug_length, gpr_free));
         p->debug_data = NULL;
       }
       return GRPC_ERROR_NONE;
@@ -160,13 +160,13 @@
 }
 
 void grpc_chttp2_goaway_append(uint32_t last_stream_id, uint32_t error_code,
-                               gpr_slice debug_data,
-                               gpr_slice_buffer *slice_buffer) {
-  gpr_slice header = gpr_slice_malloc(9 + 4 + 4);
-  uint8_t *p = GPR_SLICE_START_PTR(header);
+                               grpc_slice debug_data,
+                               grpc_slice_buffer *slice_buffer) {
+  grpc_slice header = grpc_slice_malloc(9 + 4 + 4);
+  uint8_t *p = GRPC_SLICE_START_PTR(header);
   uint32_t frame_length;
-  GPR_ASSERT(GPR_SLICE_LENGTH(debug_data) < UINT32_MAX - 4 - 4);
-  frame_length = 4 + 4 + (uint32_t)GPR_SLICE_LENGTH(debug_data);
+  GPR_ASSERT(GRPC_SLICE_LENGTH(debug_data) < UINT32_MAX - 4 - 4);
+  frame_length = 4 + 4 + (uint32_t)GRPC_SLICE_LENGTH(debug_data);
 
   /* frame header: length */
   *p++ = (uint8_t)(frame_length >> 16);
@@ -191,7 +191,7 @@
   *p++ = (uint8_t)(error_code >> 16);
   *p++ = (uint8_t)(error_code >> 8);
   *p++ = (uint8_t)(error_code);
-  GPR_ASSERT(p == GPR_SLICE_END_PTR(header));
-  gpr_slice_buffer_add(slice_buffer, header);
-  gpr_slice_buffer_add(slice_buffer, debug_data);
+  GPR_ASSERT(p == GRPC_SLICE_END_PTR(header));
+  grpc_slice_buffer_add(slice_buffer, header);
+  grpc_slice_buffer_add(slice_buffer, debug_data);
 }
diff --git a/src/core/ext/transport/chttp2/transport/frame_goaway.h b/src/core/ext/transport/chttp2/transport/frame_goaway.h
index 355104a..21fe819 100644
--- a/src/core/ext/transport/chttp2/transport/frame_goaway.h
+++ b/src/core/ext/transport/chttp2/transport/frame_goaway.h
@@ -34,9 +34,9 @@
 #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_GOAWAY_H
 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_GOAWAY_H
 
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/port_platform.h>
-#include <grpc/support/slice.h>
-#include <grpc/support/slice_buffer.h>
 #include "src/core/ext/transport/chttp2/transport/frame.h"
 #include "src/core/lib/iomgr/exec_ctx.h"
 
@@ -69,10 +69,10 @@
                                             void *parser,
                                             grpc_chttp2_transport *t,
                                             grpc_chttp2_stream *s,
-                                            gpr_slice slice, int is_last);
+                                            grpc_slice slice, int is_last);
 
 void grpc_chttp2_goaway_append(uint32_t last_stream_id, uint32_t error_code,
-                               gpr_slice debug_data,
-                               gpr_slice_buffer *slice_buffer);
+                               grpc_slice debug_data,
+                               grpc_slice_buffer *slice_buffer);
 
 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_GOAWAY_H */
diff --git a/src/core/ext/transport/chttp2/transport/frame_ping.c b/src/core/ext/transport/chttp2/transport/frame_ping.c
index 624f426..7de5f63 100644
--- a/src/core/ext/transport/chttp2/transport/frame_ping.c
+++ b/src/core/ext/transport/chttp2/transport/frame_ping.c
@@ -40,9 +40,9 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-gpr_slice grpc_chttp2_ping_create(uint8_t ack, uint8_t *opaque_8bytes) {
-  gpr_slice slice = gpr_slice_malloc(9 + 8);
-  uint8_t *p = GPR_SLICE_START_PTR(slice);
+grpc_slice grpc_chttp2_ping_create(uint8_t ack, uint8_t *opaque_8bytes) {
+  grpc_slice slice = grpc_slice_malloc(9 + 8);
+  uint8_t *p = GRPC_SLICE_START_PTR(slice);
 
   *p++ = 0;
   *p++ = 0;
@@ -76,9 +76,9 @@
 grpc_error *grpc_chttp2_ping_parser_parse(grpc_exec_ctx *exec_ctx, void *parser,
                                           grpc_chttp2_transport *t,
                                           grpc_chttp2_stream *s,
-                                          gpr_slice slice, int is_last) {
-  uint8_t *const beg = GPR_SLICE_START_PTR(slice);
-  uint8_t *const end = GPR_SLICE_END_PTR(slice);
+                                          grpc_slice slice, int is_last) {
+  uint8_t *const beg = GRPC_SLICE_START_PTR(slice);
+  uint8_t *const end = GRPC_SLICE_END_PTR(slice);
   uint8_t *cur = beg;
   grpc_chttp2_ping_parser *p = parser;
 
@@ -93,8 +93,8 @@
     if (p->is_ack) {
       grpc_chttp2_ack_ping(exec_ctx, t, p->opaque_8bytes);
     } else {
-      gpr_slice_buffer_add(&t->qbuf,
-                           grpc_chttp2_ping_create(1, p->opaque_8bytes));
+      grpc_slice_buffer_add(&t->qbuf,
+                            grpc_chttp2_ping_create(1, p->opaque_8bytes));
       grpc_chttp2_initiate_write(exec_ctx, t, false, "ping response");
     }
   }
diff --git a/src/core/ext/transport/chttp2/transport/frame_ping.h b/src/core/ext/transport/chttp2/transport/frame_ping.h
index 2071f64..b9889e2 100644
--- a/src/core/ext/transport/chttp2/transport/frame_ping.h
+++ b/src/core/ext/transport/chttp2/transport/frame_ping.h
@@ -34,7 +34,7 @@
 #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_PING_H
 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_PING_H
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include "src/core/ext/transport/chttp2/transport/frame.h"
 #include "src/core/lib/iomgr/exec_ctx.h"
 
@@ -44,13 +44,13 @@
   uint8_t opaque_8bytes[8];
 } grpc_chttp2_ping_parser;
 
-gpr_slice grpc_chttp2_ping_create(uint8_t ack, uint8_t *opaque_8bytes);
+grpc_slice grpc_chttp2_ping_create(uint8_t ack, uint8_t *opaque_8bytes);
 
 grpc_error *grpc_chttp2_ping_parser_begin_frame(grpc_chttp2_ping_parser *parser,
                                                 uint32_t length, uint8_t flags);
 grpc_error *grpc_chttp2_ping_parser_parse(grpc_exec_ctx *exec_ctx, void *parser,
                                           grpc_chttp2_transport *t,
                                           grpc_chttp2_stream *s,
-                                          gpr_slice slice, int is_last);
+                                          grpc_slice slice, int is_last);
 
 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_PING_H */
diff --git a/src/core/ext/transport/chttp2/transport/frame_rst_stream.c b/src/core/ext/transport/chttp2/transport/frame_rst_stream.c
index 9eac050..b4c5ed7 100644
--- a/src/core/ext/transport/chttp2/transport/frame_rst_stream.c
+++ b/src/core/ext/transport/chttp2/transport/frame_rst_stream.c
@@ -42,12 +42,12 @@
 #include "src/core/ext/transport/chttp2/transport/http2_errors.h"
 #include "src/core/ext/transport/chttp2/transport/status_conversion.h"
 
-gpr_slice grpc_chttp2_rst_stream_create(uint32_t id, uint32_t code,
-                                        grpc_transport_one_way_stats *stats) {
+grpc_slice grpc_chttp2_rst_stream_create(uint32_t id, uint32_t code,
+                                         grpc_transport_one_way_stats *stats) {
   static const size_t frame_size = 13;
-  gpr_slice slice = gpr_slice_malloc(frame_size);
+  grpc_slice slice = grpc_slice_malloc(frame_size);
   stats->framing_bytes += frame_size;
-  uint8_t *p = GPR_SLICE_START_PTR(slice);
+  uint8_t *p = GRPC_SLICE_START_PTR(slice);
 
   // Frame size.
   *p++ = 0;
@@ -89,9 +89,9 @@
                                                 void *parser,
                                                 grpc_chttp2_transport *t,
                                                 grpc_chttp2_stream *s,
-                                                gpr_slice slice, int is_last) {
-  uint8_t *const beg = GPR_SLICE_START_PTR(slice);
-  uint8_t *const end = GPR_SLICE_END_PTR(slice);
+                                                grpc_slice slice, int is_last) {
+  uint8_t *const beg = GRPC_SLICE_START_PTR(slice);
+  uint8_t *const end = GRPC_SLICE_END_PTR(slice);
   uint8_t *cur = beg;
   grpc_chttp2_rst_stream_parser *p = parser;
 
@@ -117,7 +117,7 @@
       char *status_details;
       gpr_asprintf(&status_details, "Received RST_STREAM with error code %d",
                    reason);
-      gpr_slice slice_details = gpr_slice_from_copied_string(status_details);
+      grpc_slice slice_details = grpc_slice_from_copied_string(status_details);
       gpr_free(status_details);
       grpc_chttp2_fake_status(exec_ctx, t, s, status_code, &slice_details);
     }
diff --git a/src/core/ext/transport/chttp2/transport/frame_rst_stream.h b/src/core/ext/transport/chttp2/transport/frame_rst_stream.h
index 5a1f578..779507a 100644
--- a/src/core/ext/transport/chttp2/transport/frame_rst_stream.h
+++ b/src/core/ext/transport/chttp2/transport/frame_rst_stream.h
@@ -34,7 +34,7 @@
 #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_RST_STREAM_H
 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_RST_STREAM_H
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include "src/core/ext/transport/chttp2/transport/frame.h"
 #include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/transport/transport.h"
@@ -44,8 +44,8 @@
   uint8_t reason_bytes[4];
 } grpc_chttp2_rst_stream_parser;
 
-gpr_slice grpc_chttp2_rst_stream_create(uint32_t stream_id, uint32_t code,
-                                        grpc_transport_one_way_stats *stats);
+grpc_slice grpc_chttp2_rst_stream_create(uint32_t stream_id, uint32_t code,
+                                         grpc_transport_one_way_stats *stats);
 
 grpc_error *grpc_chttp2_rst_stream_parser_begin_frame(
     grpc_chttp2_rst_stream_parser *parser, uint32_t length, uint8_t flags);
@@ -53,6 +53,6 @@
                                                 void *parser,
                                                 grpc_chttp2_transport *t,
                                                 grpc_chttp2_stream *s,
-                                                gpr_slice slice, int is_last);
+                                                grpc_slice slice, int is_last);
 
 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_RST_STREAM_H */
diff --git a/src/core/ext/transport/chttp2/transport/frame_settings.c b/src/core/ext/transport/chttp2/transport/frame_settings.c
index 92022f9..98facae 100644
--- a/src/core/ext/transport/chttp2/transport/frame_settings.c
+++ b/src/core/ext/transport/chttp2/transport/frame_settings.c
@@ -82,19 +82,19 @@
   return out;
 }
 
-gpr_slice grpc_chttp2_settings_create(uint32_t *old, const uint32_t *new,
-                                      uint32_t force_mask, size_t count) {
+grpc_slice grpc_chttp2_settings_create(uint32_t *old, const uint32_t *new,
+                                       uint32_t force_mask, size_t count) {
   size_t i;
   uint32_t n = 0;
-  gpr_slice output;
+  grpc_slice output;
   uint8_t *p;
 
   for (i = 0; i < count; i++) {
     n += (new[i] != old[i] || (force_mask & (1u << i)) != 0);
   }
 
-  output = gpr_slice_malloc(9 + 6 * n);
-  p = fill_header(GPR_SLICE_START_PTR(output), 6 * n, 0);
+  output = grpc_slice_malloc(9 + 6 * n);
+  p = fill_header(GRPC_SLICE_START_PTR(output), 6 * n, 0);
 
   for (i = 0; i < count; i++) {
     if (new[i] != old[i] || (force_mask & (1u << i)) != 0) {
@@ -109,14 +109,14 @@
     }
   }
 
-  GPR_ASSERT(p == GPR_SLICE_END_PTR(output));
+  GPR_ASSERT(p == GRPC_SLICE_END_PTR(output));
 
   return output;
 }
 
-gpr_slice grpc_chttp2_settings_ack_create(void) {
-  gpr_slice output = gpr_slice_malloc(9);
-  fill_header(GPR_SLICE_START_PTR(output), 0, GRPC_CHTTP2_FLAG_ACK);
+grpc_slice grpc_chttp2_settings_ack_create(void) {
+  grpc_slice output = grpc_slice_malloc(9);
+  fill_header(GRPC_SLICE_START_PTR(output), 0, GRPC_CHTTP2_FLAG_ACK);
   return output;
 }
 
@@ -146,10 +146,10 @@
 grpc_error *grpc_chttp2_settings_parser_parse(grpc_exec_ctx *exec_ctx, void *p,
                                               grpc_chttp2_transport *t,
                                               grpc_chttp2_stream *s,
-                                              gpr_slice slice, int is_last) {
+                                              grpc_slice slice, int is_last) {
   grpc_chttp2_settings_parser *parser = p;
-  const uint8_t *cur = GPR_SLICE_START_PTR(slice);
-  const uint8_t *end = GPR_SLICE_END_PTR(slice);
+  const uint8_t *cur = GRPC_SLICE_START_PTR(slice);
+  const uint8_t *end = GRPC_SLICE_END_PTR(slice);
   char *msg;
 
   if (parser->is_ack) {
@@ -164,7 +164,7 @@
           if (is_last) {
             memcpy(parser->target_settings, parser->incoming_settings,
                    GRPC_CHTTP2_NUM_SETTINGS * sizeof(uint32_t));
-            gpr_slice_buffer_add(&t->qbuf, grpc_chttp2_settings_ack_create());
+            grpc_slice_buffer_add(&t->qbuf, grpc_chttp2_settings_ack_create());
           }
           return GRPC_ERROR_NONE;
         }
@@ -225,7 +225,7 @@
               case GRPC_CHTTP2_DISCONNECT_ON_INVALID_VALUE:
                 grpc_chttp2_goaway_append(
                     t->last_new_stream_id, sp->error_value,
-                    gpr_slice_from_static_string("HTTP2 settings error"),
+                    grpc_slice_from_static_string("HTTP2 settings error"),
                     &t->qbuf);
                 gpr_asprintf(&msg, "invalid value %u passed for %s",
                              parser->value, sp->name);
diff --git a/src/core/ext/transport/chttp2/transport/frame_settings.h b/src/core/ext/transport/chttp2/transport/frame_settings.h
index 4bfa944..a29dc82 100644
--- a/src/core/ext/transport/chttp2/transport/frame_settings.h
+++ b/src/core/ext/transport/chttp2/transport/frame_settings.h
@@ -34,8 +34,8 @@
 #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_SETTINGS_H
 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_SETTINGS_H
 
+#include <grpc/slice.h>
 #include <grpc/support/port_platform.h>
-#include <grpc/support/slice.h>
 #include "src/core/ext/transport/chttp2/transport/frame.h"
 #include "src/core/lib/iomgr/exec_ctx.h"
 
@@ -87,10 +87,10 @@
     grpc_chttp2_settings_parameters[GRPC_CHTTP2_NUM_SETTINGS];
 
 /* Create a settings frame by diffing old & new, and updating old to be new */
-gpr_slice grpc_chttp2_settings_create(uint32_t *old, const uint32_t *new,
-                                      uint32_t force_mask, size_t count);
+grpc_slice grpc_chttp2_settings_create(uint32_t *old, const uint32_t *new,
+                                       uint32_t force_mask, size_t count);
 /* Create an ack settings frame */
-gpr_slice grpc_chttp2_settings_ack_create(void);
+grpc_slice grpc_chttp2_settings_ack_create(void);
 
 grpc_error *grpc_chttp2_settings_parser_begin_frame(
     grpc_chttp2_settings_parser *parser, uint32_t length, uint8_t flags,
@@ -99,6 +99,6 @@
                                               void *parser,
                                               grpc_chttp2_transport *t,
                                               grpc_chttp2_stream *s,
-                                              gpr_slice slice, int is_last);
+                                              grpc_slice slice, int is_last);
 
 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_SETTINGS_H */
diff --git a/src/core/ext/transport/chttp2/transport/frame_window_update.c b/src/core/ext/transport/chttp2/transport/frame_window_update.c
index 418166a..31a31c2 100644
--- a/src/core/ext/transport/chttp2/transport/frame_window_update.c
+++ b/src/core/ext/transport/chttp2/transport/frame_window_update.c
@@ -38,12 +38,12 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-gpr_slice grpc_chttp2_window_update_create(
+grpc_slice grpc_chttp2_window_update_create(
     uint32_t id, uint32_t window_update, grpc_transport_one_way_stats *stats) {
   static const size_t frame_size = 13;
-  gpr_slice slice = gpr_slice_malloc(frame_size);
+  grpc_slice slice = grpc_slice_malloc(frame_size);
   stats->header_bytes += frame_size;
-  uint8_t *p = GPR_SLICE_START_PTR(slice);
+  uint8_t *p = GRPC_SLICE_START_PTR(slice);
 
   GPR_ASSERT(window_update);
 
@@ -81,9 +81,9 @@
 
 grpc_error *grpc_chttp2_window_update_parser_parse(
     grpc_exec_ctx *exec_ctx, void *parser, grpc_chttp2_transport *t,
-    grpc_chttp2_stream *s, gpr_slice slice, int is_last) {
-  uint8_t *const beg = GPR_SLICE_START_PTR(slice);
-  uint8_t *const end = GPR_SLICE_END_PTR(slice);
+    grpc_chttp2_stream *s, grpc_slice slice, int is_last) {
+  uint8_t *const beg = GRPC_SLICE_START_PTR(slice);
+  uint8_t *const end = GRPC_SLICE_END_PTR(slice);
   uint8_t *cur = beg;
   grpc_chttp2_window_update_parser *p = parser;
 
diff --git a/src/core/ext/transport/chttp2/transport/frame_window_update.h b/src/core/ext/transport/chttp2/transport/frame_window_update.h
index 6e62f31..f75dfb3 100644
--- a/src/core/ext/transport/chttp2/transport/frame_window_update.h
+++ b/src/core/ext/transport/chttp2/transport/frame_window_update.h
@@ -34,7 +34,7 @@
 #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_WINDOW_UPDATE_H
 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_WINDOW_UPDATE_H
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include "src/core/ext/transport/chttp2/transport/frame.h"
 #include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/transport/transport.h"
@@ -45,13 +45,13 @@
   uint32_t amount;
 } grpc_chttp2_window_update_parser;
 
-gpr_slice grpc_chttp2_window_update_create(uint32_t id, uint32_t window_delta,
-                                           grpc_transport_one_way_stats *stats);
+grpc_slice grpc_chttp2_window_update_create(
+    uint32_t id, uint32_t window_delta, grpc_transport_one_way_stats *stats);
 
 grpc_error *grpc_chttp2_window_update_parser_begin_frame(
     grpc_chttp2_window_update_parser *parser, uint32_t length, uint8_t flags);
 grpc_error *grpc_chttp2_window_update_parser_parse(
     grpc_exec_ctx *exec_ctx, void *parser, grpc_chttp2_transport *t,
-    grpc_chttp2_stream *s, gpr_slice slice, int is_last);
+    grpc_chttp2_stream *s, grpc_slice slice, int is_last);
 
 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_WINDOW_UPDATE_H */
diff --git a/src/core/ext/transport/chttp2/transport/hpack_encoder.c b/src/core/ext/transport/chttp2/transport/hpack_encoder.c
index 581471b..eb68fe3 100644
--- a/src/core/ext/transport/chttp2/transport/hpack_encoder.c
+++ b/src/core/ext/transport/chttp2/transport/hpack_encoder.c
@@ -76,7 +76,7 @@
   uint8_t seen_regular_header;
   /* output stream id */
   uint32_t stream_id;
-  gpr_slice_buffer *output;
+  grpc_slice_buffer *output;
   grpc_transport_one_way_stats *stats;
   /* maximum size of a frame */
   size_t max_frame_size;
@@ -104,7 +104,7 @@
   type = st->is_first_frame ? GRPC_CHTTP2_FRAME_HEADER
                             : GRPC_CHTTP2_FRAME_CONTINUATION;
   fill_header(
-      GPR_SLICE_START_PTR(st->output->slices[st->header_idx]), type,
+      GRPC_SLICE_START_PTR(st->output->slices[st->header_idx]), type,
       st->stream_id, st->output->length - st->output_length_at_start_of_frame,
       (uint8_t)((is_last_in_stream ? GRPC_CHTTP2_DATA_FLAG_END_STREAM : 0) |
                 (is_header_boundary ? GRPC_CHTTP2_DATA_FLAG_END_HEADERS : 0)));
@@ -116,7 +116,7 @@
    output before beginning */
 static void begin_frame(framer_state *st) {
   st->header_idx =
-      gpr_slice_buffer_add_indexed(st->output, gpr_slice_malloc(9));
+      grpc_slice_buffer_add_indexed(st->output, grpc_slice_malloc(9));
   st->output_length_at_start_of_frame = st->output->length;
 }
 
@@ -147,18 +147,18 @@
   }
 }
 
-static void add_header_data(framer_state *st, gpr_slice slice) {
-  size_t len = GPR_SLICE_LENGTH(slice);
+static void add_header_data(framer_state *st, grpc_slice slice) {
+  size_t len = GRPC_SLICE_LENGTH(slice);
   size_t remaining;
   if (len == 0) return;
   remaining = st->max_frame_size + st->output_length_at_start_of_frame -
               st->output->length;
   if (len <= remaining) {
     st->stats->header_bytes += len;
-    gpr_slice_buffer_add(st->output, slice);
+    grpc_slice_buffer_add(st->output, slice);
   } else {
     st->stats->header_bytes += remaining;
-    gpr_slice_buffer_add(st->output, gpr_slice_split_head(&slice, remaining));
+    grpc_slice_buffer_add(st->output, grpc_slice_split_head(&slice, remaining));
     finish_frame(st, 0, 0);
     begin_frame(st);
     add_header_data(st, slice);
@@ -167,7 +167,7 @@
 
 static uint8_t *add_tiny_header_data(framer_state *st, size_t len) {
   ensure_space(st, len);
-  return gpr_slice_buffer_tiny_add(st->output, len);
+  return grpc_slice_buffer_tiny_add(st->output, len);
 }
 
 static void evict_entry(grpc_chttp2_hpack_compressor *c) {
@@ -268,9 +268,10 @@
                            len);
 }
 
-static gpr_slice get_wire_value(grpc_mdelem *elem, uint8_t *huffman_prefix) {
-  if (grpc_is_binary_header((const char *)GPR_SLICE_START_PTR(elem->key->slice),
-                            GPR_SLICE_LENGTH(elem->key->slice))) {
+static grpc_slice get_wire_value(grpc_mdelem *elem, uint8_t *huffman_prefix) {
+  if (grpc_is_binary_header(
+          (const char *)GRPC_SLICE_START_PTR(elem->key->slice),
+          GRPC_SLICE_LENGTH(elem->key->slice))) {
     *huffman_prefix = 0x80;
     return grpc_mdstr_as_base64_encoded_and_huffman_compressed(elem->value);
   }
@@ -284,8 +285,8 @@
                                framer_state *st) {
   uint32_t len_pfx = GRPC_CHTTP2_VARINT_LENGTH(key_index, 2);
   uint8_t huffman_prefix;
-  gpr_slice value_slice = get_wire_value(elem, &huffman_prefix);
-  size_t len_val = GPR_SLICE_LENGTH(value_slice);
+  grpc_slice value_slice = get_wire_value(elem, &huffman_prefix);
+  size_t len_val = GRPC_SLICE_LENGTH(value_slice);
   uint32_t len_val_len;
   GPR_ASSERT(len_val <= UINT32_MAX);
   len_val_len = GRPC_CHTTP2_VARINT_LENGTH((uint32_t)len_val, 1);
@@ -293,7 +294,7 @@
                            add_tiny_header_data(st, len_pfx), len_pfx);
   GRPC_CHTTP2_WRITE_VARINT((uint32_t)len_val, 1, huffman_prefix,
                            add_tiny_header_data(st, len_val_len), len_val_len);
-  add_header_data(st, gpr_slice_ref(value_slice));
+  add_header_data(st, grpc_slice_ref(value_slice));
 }
 
 static void emit_lithdr_noidx(grpc_chttp2_hpack_compressor *c,
@@ -301,8 +302,8 @@
                               framer_state *st) {
   uint32_t len_pfx = GRPC_CHTTP2_VARINT_LENGTH(key_index, 4);
   uint8_t huffman_prefix;
-  gpr_slice value_slice = get_wire_value(elem, &huffman_prefix);
-  size_t len_val = GPR_SLICE_LENGTH(value_slice);
+  grpc_slice value_slice = get_wire_value(elem, &huffman_prefix);
+  size_t len_val = GRPC_SLICE_LENGTH(value_slice);
   uint32_t len_val_len;
   GPR_ASSERT(len_val <= UINT32_MAX);
   len_val_len = GRPC_CHTTP2_VARINT_LENGTH((uint32_t)len_val, 1);
@@ -310,45 +311,45 @@
                            add_tiny_header_data(st, len_pfx), len_pfx);
   GRPC_CHTTP2_WRITE_VARINT((uint32_t)len_val, 1, huffman_prefix,
                            add_tiny_header_data(st, len_val_len), len_val_len);
-  add_header_data(st, gpr_slice_ref(value_slice));
+  add_header_data(st, grpc_slice_ref(value_slice));
 }
 
 static void emit_lithdr_incidx_v(grpc_chttp2_hpack_compressor *c,
                                  grpc_mdelem *elem, framer_state *st) {
-  uint32_t len_key = (uint32_t)GPR_SLICE_LENGTH(elem->key->slice);
+  uint32_t len_key = (uint32_t)GRPC_SLICE_LENGTH(elem->key->slice);
   uint8_t huffman_prefix;
-  gpr_slice value_slice = get_wire_value(elem, &huffman_prefix);
-  uint32_t len_val = (uint32_t)GPR_SLICE_LENGTH(value_slice);
+  grpc_slice value_slice = get_wire_value(elem, &huffman_prefix);
+  uint32_t len_val = (uint32_t)GRPC_SLICE_LENGTH(value_slice);
   uint32_t len_key_len = GRPC_CHTTP2_VARINT_LENGTH(len_key, 1);
   uint32_t len_val_len = GRPC_CHTTP2_VARINT_LENGTH(len_val, 1);
   GPR_ASSERT(len_key <= UINT32_MAX);
-  GPR_ASSERT(GPR_SLICE_LENGTH(value_slice) <= UINT32_MAX);
+  GPR_ASSERT(GRPC_SLICE_LENGTH(value_slice) <= UINT32_MAX);
   *add_tiny_header_data(st, 1) = 0x40;
   GRPC_CHTTP2_WRITE_VARINT(len_key, 1, 0x00,
                            add_tiny_header_data(st, len_key_len), len_key_len);
-  add_header_data(st, gpr_slice_ref(elem->key->slice));
+  add_header_data(st, grpc_slice_ref(elem->key->slice));
   GRPC_CHTTP2_WRITE_VARINT(len_val, 1, huffman_prefix,
                            add_tiny_header_data(st, len_val_len), len_val_len);
-  add_header_data(st, gpr_slice_ref(value_slice));
+  add_header_data(st, grpc_slice_ref(value_slice));
 }
 
 static void emit_lithdr_noidx_v(grpc_chttp2_hpack_compressor *c,
                                 grpc_mdelem *elem, framer_state *st) {
-  uint32_t len_key = (uint32_t)GPR_SLICE_LENGTH(elem->key->slice);
+  uint32_t len_key = (uint32_t)GRPC_SLICE_LENGTH(elem->key->slice);
   uint8_t huffman_prefix;
-  gpr_slice value_slice = get_wire_value(elem, &huffman_prefix);
-  uint32_t len_val = (uint32_t)GPR_SLICE_LENGTH(value_slice);
+  grpc_slice value_slice = get_wire_value(elem, &huffman_prefix);
+  uint32_t len_val = (uint32_t)GRPC_SLICE_LENGTH(value_slice);
   uint32_t len_key_len = GRPC_CHTTP2_VARINT_LENGTH(len_key, 1);
   uint32_t len_val_len = GRPC_CHTTP2_VARINT_LENGTH(len_val, 1);
   GPR_ASSERT(len_key <= UINT32_MAX);
-  GPR_ASSERT(GPR_SLICE_LENGTH(value_slice) <= UINT32_MAX);
+  GPR_ASSERT(GRPC_SLICE_LENGTH(value_slice) <= UINT32_MAX);
   *add_tiny_header_data(st, 1) = 0x00;
   GRPC_CHTTP2_WRITE_VARINT(len_key, 1, 0x00,
                            add_tiny_header_data(st, len_key_len), len_key_len);
-  add_header_data(st, gpr_slice_ref(elem->key->slice));
+  add_header_data(st, grpc_slice_ref(elem->key->slice));
   GRPC_CHTTP2_WRITE_VARINT(len_val, 1, huffman_prefix,
                            add_tiny_header_data(st, len_val_len), len_val_len);
-  add_header_data(st, gpr_slice_ref(value_slice));
+  add_header_data(st, grpc_slice_ref(value_slice));
 }
 
 static void emit_advertise_table_size_change(grpc_chttp2_hpack_compressor *c,
@@ -373,8 +374,8 @@
   uint32_t indices_key;
   int should_add_elem;
 
-  GPR_ASSERT(GPR_SLICE_LENGTH(elem->key->slice) > 0);
-  if (GPR_SLICE_START_PTR(elem->key->slice)[0] != ':') { /* regular header */
+  GPR_ASSERT(GRPC_SLICE_LENGTH(elem->key->slice) > 0);
+  if (GRPC_SLICE_START_PTR(elem->key->slice)[0] != ':') { /* regular header */
     st->seen_regular_header = 1;
   } else {
     GPR_ASSERT(
@@ -546,7 +547,7 @@
                                grpc_metadata_batch *metadata, int is_eof,
                                size_t max_frame_size,
                                grpc_transport_one_way_stats *stats,
-                               gpr_slice_buffer *outbuf) {
+                               grpc_slice_buffer *outbuf) {
   framer_state st;
   grpc_linked_mdelem *l;
   gpr_timespec deadline;
diff --git a/src/core/ext/transport/chttp2/transport/hpack_encoder.h b/src/core/ext/transport/chttp2/transport/hpack_encoder.h
index 4c3a931..bcbd675 100644
--- a/src/core/ext/transport/chttp2/transport/hpack_encoder.h
+++ b/src/core/ext/transport/chttp2/transport/hpack_encoder.h
@@ -34,9 +34,9 @@
 #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HPACK_ENCODER_H
 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HPACK_ENCODER_H
 
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/port_platform.h>
-#include <grpc/support/slice.h>
-#include <grpc/support/slice_buffer.h>
 #include "src/core/ext/transport/chttp2/transport/frame.h"
 #include "src/core/lib/transport/metadata.h"
 #include "src/core/lib/transport/metadata_batch.h"
@@ -93,6 +93,6 @@
                                grpc_metadata_batch *metadata, int is_eof,
                                size_t max_frame_size,
                                grpc_transport_one_way_stats *stats,
-                               gpr_slice_buffer *outbuf);
+                               grpc_slice_buffer *outbuf);
 
 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HPACK_ENCODER_H */
diff --git a/src/core/ext/transport/chttp2/transport/hpack_parser.c b/src/core/ext/transport/chttp2/transport/hpack_parser.c
index 9702cb2..6a9200b 100644
--- a/src/core/ext/transport/chttp2/transport/hpack_parser.c
+++ b/src/core/ext/transport/chttp2/transport/hpack_parser.c
@@ -1502,9 +1502,9 @@
                            GRPC_ERROR_INT_INDEX, (intptr_t)p->index),
         GRPC_ERROR_INT_SIZE, (intptr_t)p->table.num_ents);
   }
-  *is =
-      grpc_is_binary_header((const char *)GPR_SLICE_START_PTR(elem->key->slice),
-                            GPR_SLICE_LENGTH(elem->key->slice));
+  *is = grpc_is_binary_header(
+      (const char *)GRPC_SLICE_START_PTR(elem->key->slice),
+      GRPC_SLICE_LENGTH(elem->key->slice));
   return GRPC_ERROR_NONE;
 }
 
@@ -1584,7 +1584,7 @@
   grpc_chttp2_stream *s = sp;
   grpc_chttp2_transport *t = s->t;
   if (!s->write_closed) {
-    gpr_slice_buffer_add(
+    grpc_slice_buffer_add(
         &t->qbuf, grpc_chttp2_rst_stream_create(s->id, GRPC_CHTTP2_NO_ERROR,
                                                 &s->stats.outgoing));
     grpc_chttp2_initiate_write(exec_ctx, t, false, "force_rst_stream");
@@ -1597,14 +1597,14 @@
                                             void *hpack_parser,
                                             grpc_chttp2_transport *t,
                                             grpc_chttp2_stream *s,
-                                            gpr_slice slice, int is_last) {
+                                            grpc_slice slice, int is_last) {
   grpc_chttp2_hpack_parser *parser = hpack_parser;
   GPR_TIMER_BEGIN("grpc_chttp2_hpack_parser_parse", 0);
   if (s != NULL) {
-    s->stats.incoming.header_bytes += GPR_SLICE_LENGTH(slice);
+    s->stats.incoming.header_bytes += GRPC_SLICE_LENGTH(slice);
   }
   grpc_error *error = grpc_chttp2_hpack_parser_parse(
-      exec_ctx, parser, GPR_SLICE_START_PTR(slice), GPR_SLICE_END_PTR(slice));
+      exec_ctx, parser, GRPC_SLICE_START_PTR(slice), GRPC_SLICE_END_PTR(slice));
   if (error != GRPC_ERROR_NONE) {
     GPR_TIMER_END("grpc_chttp2_hpack_parser_parse", 0);
     return error;
diff --git a/src/core/ext/transport/chttp2/transport/hpack_parser.h b/src/core/ext/transport/chttp2/transport/hpack_parser.h
index 0290c78..a39bf46 100644
--- a/src/core/ext/transport/chttp2/transport/hpack_parser.h
+++ b/src/core/ext/transport/chttp2/transport/hpack_parser.h
@@ -116,6 +116,6 @@
                                             void *hpack_parser,
                                             grpc_chttp2_transport *t,
                                             grpc_chttp2_stream *s,
-                                            gpr_slice slice, int is_last);
+                                            grpc_slice slice, int is_last);
 
 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HPACK_PARSER_H */
diff --git a/src/core/ext/transport/chttp2/transport/hpack_table.c b/src/core/ext/transport/chttp2/transport/hpack_table.c
index 2b73ec9..2dc793d 100644
--- a/src/core/ext/transport/chttp2/transport/hpack_table.c
+++ b/src/core/ext/transport/chttp2/transport/hpack_table.c
@@ -226,8 +226,8 @@
 /* Evict one element from the table */
 static void evict1(grpc_chttp2_hptbl *tbl) {
   grpc_mdelem *first_ent = tbl->ents[tbl->first_ent];
-  size_t elem_bytes = GPR_SLICE_LENGTH(first_ent->key->slice) +
-                      GPR_SLICE_LENGTH(first_ent->value->slice) +
+  size_t elem_bytes = GRPC_SLICE_LENGTH(first_ent->key->slice) +
+                      GRPC_SLICE_LENGTH(first_ent->value->slice) +
                       GRPC_CHTTP2_HPACK_ENTRY_OVERHEAD;
   GPR_ASSERT(elem_bytes <= tbl->mem_used);
   tbl->mem_used -= (uint32_t)elem_bytes;
@@ -298,8 +298,8 @@
 
 grpc_error *grpc_chttp2_hptbl_add(grpc_chttp2_hptbl *tbl, grpc_mdelem *md) {
   /* determine how many bytes of buffer this entry represents */
-  size_t elem_bytes = GPR_SLICE_LENGTH(md->key->slice) +
-                      GPR_SLICE_LENGTH(md->value->slice) +
+  size_t elem_bytes = GRPC_SLICE_LENGTH(md->key->slice) +
+                      GRPC_SLICE_LENGTH(md->value->slice) +
                       GRPC_CHTTP2_HPACK_ENTRY_OVERHEAD;
 
   if (tbl->current_table_bytes > tbl->max_bytes) {
diff --git a/src/core/ext/transport/chttp2/transport/hpack_table.h b/src/core/ext/transport/chttp2/transport/hpack_table.h
index 45bd925..2ca130e 100644
--- a/src/core/ext/transport/chttp2/transport/hpack_table.h
+++ b/src/core/ext/transport/chttp2/transport/hpack_table.h
@@ -34,8 +34,8 @@
 #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HPACK_TABLE_H
 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HPACK_TABLE_H
 
+#include <grpc/slice.h>
 #include <grpc/support/port_platform.h>
-#include <grpc/support/slice.h>
 #include "src/core/lib/iomgr/error.h"
 #include "src/core/lib/transport/metadata.h"
 
diff --git a/src/core/ext/transport/chttp2/transport/internal.h b/src/core/ext/transport/chttp2/transport/internal.h
index e0c4a1e..b74233d 100644
--- a/src/core/ext/transport/chttp2/transport/internal.h
+++ b/src/core/ext/transport/chttp2/transport/internal.h
@@ -170,14 +170,14 @@
   bool is_tail;
 
   gpr_mu slice_mu;  // protects slices, on_next
-  gpr_slice_buffer slices;
+  grpc_slice_buffer slices;
   grpc_closure *on_next;
-  gpr_slice *next;
+  grpc_slice *next;
   uint32_t remaining_bytes;
 
   struct {
     grpc_closure closure;
-    gpr_slice *slice;
+    grpc_slice *slice;
     size_t max_size_hint;
     grpc_closure *on_complete;
   } next_action;
@@ -219,7 +219,7 @@
   grpc_closure read_action_locked;
 
   /** incoming read bytes */
-  gpr_slice_buffer read_buffer;
+  grpc_slice_buffer read_buffer;
 
   /** address to place a newly accepted stream - set and unset by
       grpc_chttp2_parsing_accept_stream; used by init_stream to
@@ -237,7 +237,7 @@
   } channel_callback;
 
   /** data to write now */
-  gpr_slice_buffer outbuf;
+  grpc_slice_buffer outbuf;
   /** hpack encoding */
   grpc_chttp2_hpack_compressor hpack_compressor;
   int64_t outgoing_window;
@@ -245,7 +245,7 @@
   uint8_t is_client;
 
   /** data to write next write */
-  gpr_slice_buffer qbuf;
+  grpc_slice_buffer qbuf;
 
   /** window available to announce to peer */
   int64_t announce_incoming_window;
@@ -314,12 +314,12 @@
   grpc_chttp2_stream *incoming_stream;
   grpc_error *(*parser)(grpc_exec_ctx *exec_ctx, void *parser_user_data,
                         grpc_chttp2_transport *t, grpc_chttp2_stream *s,
-                        gpr_slice slice, int is_last);
+                        grpc_slice slice, int is_last);
 
   /* goaway data */
   grpc_status_code goaway_error;
   uint32_t goaway_last_stream_index;
-  gpr_slice goaway_text;
+  grpc_slice goaway_text;
 
   grpc_chttp2_write_cb *write_cb_pool;
 
@@ -374,7 +374,7 @@
 
   grpc_byte_stream *fetching_send_message;
   uint32_t fetched_send_message_length;
-  gpr_slice fetching_slice;
+  grpc_slice fetching_slice;
   int64_t next_message_end_offset;
   int64_t flow_controlled_bytes_written;
   bool complete_fetch_covered_by_poller;
@@ -434,7 +434,7 @@
   bool sent_trailing_metadata;
   /** how much window should we announce? */
   uint32_t announce_window;
-  gpr_slice_buffer flow_controlled_buffer;
+  grpc_slice_buffer flow_controlled_buffer;
 
   grpc_chttp2_write_cb *on_write_finished_cbs;
   grpc_chttp2_write_cb *finish_after_write;
@@ -466,7 +466,8 @@
 /** Process one slice of incoming data; return 1 if the connection is still
     viable after reading, or 0 if the connection should be torn down */
 grpc_error *grpc_chttp2_perform_read(grpc_exec_ctx *exec_ctx,
-                                     grpc_chttp2_transport *t, gpr_slice slice);
+                                     grpc_chttp2_transport *t,
+                                     grpc_slice slice);
 
 bool grpc_chttp2_list_add_writable_stream(grpc_chttp2_transport *t,
                                           grpc_chttp2_stream *s);
@@ -509,7 +510,7 @@
 void grpc_chttp2_add_incoming_goaway(grpc_exec_ctx *exec_ctx,
                                      grpc_chttp2_transport *t,
                                      uint32_t goaway_error,
-                                     gpr_slice goaway_text);
+                                     grpc_slice goaway_text);
 
 void grpc_chttp2_parsing_become_skip_parser(grpc_exec_ctx *exec_ctx,
                                             grpc_chttp2_transport *t);
@@ -611,7 +612,7 @@
 
 void grpc_chttp2_fake_status(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
                              grpc_chttp2_stream *stream,
-                             grpc_status_code status, gpr_slice *details);
+                             grpc_status_code status, grpc_slice *details);
 void grpc_chttp2_mark_stream_closed(grpc_exec_ctx *exec_ctx,
                                     grpc_chttp2_transport *t,
                                     grpc_chttp2_stream *s, int close_reads,
@@ -659,7 +660,7 @@
     uint32_t frame_size, uint32_t flags);
 void grpc_chttp2_incoming_byte_stream_push(grpc_exec_ctx *exec_ctx,
                                            grpc_chttp2_incoming_byte_stream *bs,
-                                           gpr_slice slice);
+                                           grpc_slice slice);
 void grpc_chttp2_incoming_byte_stream_finished(
     grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_byte_stream *bs,
     grpc_error *error);
diff --git a/src/core/ext/transport/chttp2/transport/parsing.c b/src/core/ext/transport/chttp2/transport/parsing.c
index 8005350..b9c4051 100644
--- a/src/core/ext/transport/chttp2/transport/parsing.c
+++ b/src/core/ext/transport/chttp2/transport/parsing.c
@@ -67,14 +67,14 @@
                                           int is_header);
 
 static grpc_error *parse_frame_slice(grpc_exec_ctx *exec_ctx,
-                                     grpc_chttp2_transport *t, gpr_slice slice,
+                                     grpc_chttp2_transport *t, grpc_slice slice,
                                      int is_last);
 
 grpc_error *grpc_chttp2_perform_read(grpc_exec_ctx *exec_ctx,
                                      grpc_chttp2_transport *t,
-                                     gpr_slice slice) {
-  uint8_t *beg = GPR_SLICE_START_PTR(slice);
-  uint8_t *end = GPR_SLICE_END_PTR(slice);
+                                     grpc_slice slice) {
+  uint8_t *beg = GRPC_SLICE_START_PTR(slice);
+  uint8_t *end = GRPC_SLICE_END_PTR(slice);
   uint8_t *cur = beg;
   grpc_error *err;
 
@@ -229,10 +229,10 @@
     case GRPC_DTS_FRAME:
       GPR_ASSERT(cur < end);
       if ((uint32_t)(end - cur) == t->incoming_frame_size) {
-        err = parse_frame_slice(exec_ctx, t,
-                                gpr_slice_sub_no_ref(slice, (size_t)(cur - beg),
-                                                     (size_t)(end - beg)),
-                                1);
+        err = parse_frame_slice(
+            exec_ctx, t, grpc_slice_sub_no_ref(slice, (size_t)(cur - beg),
+                                               (size_t)(end - beg)),
+            1);
         if (err != GRPC_ERROR_NONE) {
           return err;
         }
@@ -243,8 +243,8 @@
         size_t cur_offset = (size_t)(cur - beg);
         err = parse_frame_slice(
             exec_ctx, t,
-            gpr_slice_sub_no_ref(slice, cur_offset,
-                                 cur_offset + t->incoming_frame_size),
+            grpc_slice_sub_no_ref(slice, cur_offset,
+                                  cur_offset + t->incoming_frame_size),
             1);
         if (err != GRPC_ERROR_NONE) {
           return err;
@@ -253,10 +253,10 @@
         t->incoming_stream = NULL;
         goto dts_fh_0; /* loop */
       } else {
-        err = parse_frame_slice(exec_ctx, t,
-                                gpr_slice_sub_no_ref(slice, (size_t)(cur - beg),
-                                                     (size_t)(end - beg)),
-                                0);
+        err = parse_frame_slice(
+            exec_ctx, t, grpc_slice_sub_no_ref(slice, (size_t)(cur - beg),
+                                               (size_t)(end - beg)),
+            0);
         if (err != GRPC_ERROR_NONE) {
           return err;
         }
@@ -331,7 +331,7 @@
 
 static grpc_error *skip_parser(grpc_exec_ctx *exec_ctx, void *parser,
                                grpc_chttp2_transport *t, grpc_chttp2_stream *s,
-                               gpr_slice slice, int is_last) {
+                               grpc_slice slice, int is_last) {
   return GRPC_ERROR_NONE;
 }
 
@@ -430,7 +430,7 @@
     if (s != NULL) {
       grpc_chttp2_mark_stream_closed(exec_ctx, t, s, true, false, err);
     }
-    gpr_slice_buffer_add(
+    grpc_slice_buffer_add(
         &t->qbuf, grpc_chttp2_rst_stream_create(t->incoming_stream_id,
                                                 GRPC_CHTTP2_PROTOCOL_ERROR,
                                                 &s->stats.outgoing));
@@ -722,7 +722,7 @@
 }
 
 static grpc_error *parse_frame_slice(grpc_exec_ctx *exec_ctx,
-                                     grpc_chttp2_transport *t, gpr_slice slice,
+                                     grpc_chttp2_transport *t, grpc_slice slice,
                                      int is_last) {
   grpc_chttp2_stream *s = t->incoming_stream;
   grpc_error *err = t->parser(exec_ctx, t->parser_data, t, s, slice, is_last);
@@ -737,7 +737,7 @@
     grpc_chttp2_parsing_become_skip_parser(exec_ctx, t);
     if (s) {
       s->forced_close_error = err;
-      gpr_slice_buffer_add(
+      grpc_slice_buffer_add(
           &t->qbuf, grpc_chttp2_rst_stream_create(t->incoming_stream_id,
                                                   GRPC_CHTTP2_PROTOCOL_ERROR,
                                                   &s->stats.outgoing));
diff --git a/src/core/ext/transport/chttp2/transport/writing.c b/src/core/ext/transport/chttp2/transport/writing.c
index b39695a..139e738 100644
--- a/src/core/ext/transport/chttp2/transport/writing.c
+++ b/src/core/ext/transport/chttp2/transport/writing.c
@@ -80,7 +80,7 @@
   GPR_TIMER_BEGIN("grpc_chttp2_begin_write", 0);
 
   if (t->dirtied_local_settings && !t->sent_local_settings) {
-    gpr_slice_buffer_add(
+    grpc_slice_buffer_add(
         &t->outbuf,
         grpc_chttp2_settings_create(
             t->settings[GRPC_SENT_SETTINGS], t->settings[GRPC_LOCAL_SETTINGS],
@@ -91,7 +91,7 @@
   }
 
   /* simple writes are queued to qbuf, and flushed here */
-  gpr_slice_buffer_move_into(&t->qbuf, &t->outbuf);
+  grpc_slice_buffer_move_into(&t->qbuf, &t->outbuf);
   GPR_ASSERT(t->qbuf.count == 0);
 
   grpc_chttp2_hpack_compressor_set_max_table_size(
@@ -130,9 +130,9 @@
     /* send any window updates */
     if (s->announce_window > 0) {
       uint32_t announce = s->announce_window;
-      gpr_slice_buffer_add(&t->outbuf,
-                           grpc_chttp2_window_update_create(
-                               s->id, s->announce_window, &s->stats.outgoing));
+      grpc_slice_buffer_add(&t->outbuf,
+                            grpc_chttp2_window_update_create(
+                                s->id, s->announce_window, &s->stats.outgoing));
       GRPC_CHTTP2_FLOW_DEBIT_STREAM("write", t, s, announce_window, announce);
     }
     if (sent_initial_metadata) {
@@ -162,9 +162,9 @@
             s->send_trailing_metadata = NULL;
             s->sent_trailing_metadata = true;
             if (!t->is_client && !s->read_closed) {
-              gpr_slice_buffer_add(&t->outbuf, grpc_chttp2_rst_stream_create(
-                                                   s->id, GRPC_CHTTP2_NO_ERROR,
-                                                   &s->stats.outgoing));
+              grpc_slice_buffer_add(&t->outbuf, grpc_chttp2_rst_stream_create(
+                                                    s->id, GRPC_CHTTP2_NO_ERROR,
+                                                    &s->stats.outgoing));
             }
           }
           s->sending_bytes += send_bytes;
@@ -194,7 +194,7 @@
         s->send_trailing_metadata = NULL;
         s->sent_trailing_metadata = true;
         if (!t->is_client && !s->read_closed) {
-          gpr_slice_buffer_add(
+          grpc_slice_buffer_add(
               &t->outbuf, grpc_chttp2_rst_stream_create(
                               s->id, GRPC_CHTTP2_NO_ERROR, &s->stats.outgoing));
         }
@@ -220,8 +220,8 @@
     GRPC_CHTTP2_FLOW_DEBIT_TRANSPORT("write", t, announce_incoming_window,
                                      announced);
     grpc_transport_one_way_stats throwaway_stats;
-    gpr_slice_buffer_add(&t->outbuf, grpc_chttp2_window_update_create(
-                                         0, announced, &throwaway_stats));
+    grpc_slice_buffer_add(&t->outbuf, grpc_chttp2_window_update_create(
+                                          0, announced, &throwaway_stats));
   }
 
   GPR_TIMER_END("grpc_chttp2_begin_write", 0);
@@ -254,7 +254,7 @@
     }
     GRPC_CHTTP2_STREAM_UNREF(exec_ctx, s, "chttp2_writing:end");
   }
-  gpr_slice_buffer_reset_and_unref(&t->outbuf);
+  grpc_slice_buffer_reset_and_unref(&t->outbuf);
   GRPC_ERROR_UNREF(error);
   GPR_TIMER_END("grpc_chttp2_end_write", 0);
 }
diff --git a/src/core/ext/transport/cronet/transport/cronet_transport.c b/src/core/ext/transport/cronet/transport/cronet_transport.c
index 25ad40b..1e5377c 100644
--- a/src/core/ext/transport/cronet/transport/cronet_transport.c
+++ b/src/core/ext/transport/cronet/transport/cronet_transport.c
@@ -34,10 +34,10 @@
 #include <string.h>
 
 #include <grpc/impl/codegen/port_platform.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
 
@@ -130,7 +130,7 @@
 
   /* vars for holding data destined for the application */
   struct grpc_slice_buffer_stream sbs;
-  gpr_slice_buffer read_slice_buffer;
+  grpc_slice_buffer read_slice_buffer;
 
   /* vars for trailing metadata */
   grpc_chttp2_incoming_metadata_buffer trailing_metadata;
@@ -517,11 +517,11 @@
  Utility function that takes the data from s->write_slice_buffer and assembles
  into a contiguous byte stream with 5 byte gRPC header prepended.
 */
-static void create_grpc_frame(gpr_slice_buffer *write_slice_buffer,
+static void create_grpc_frame(grpc_slice_buffer *write_slice_buffer,
                               char **pp_write_buffer,
                               size_t *p_write_buffer_size) {
-  gpr_slice slice = gpr_slice_buffer_take_first(write_slice_buffer);
-  size_t length = GPR_SLICE_LENGTH(slice);
+  grpc_slice slice = grpc_slice_buffer_take_first(write_slice_buffer);
+  size_t length = GRPC_SLICE_LENGTH(slice);
   *p_write_buffer_size = length + GRPC_HEADER_SIZE_IN_BYTES;
   /* This is freed in the on_write_completed callback */
   char *write_buffer = gpr_malloc(length + GRPC_HEADER_SIZE_IN_BYTES);
@@ -534,7 +534,7 @@
   *p++ = (uint8_t)(length >> 8);
   *p++ = (uint8_t)(length);
   /* append actual data */
-  memcpy(p, GPR_SLICE_START_PTR(slice), length);
+  memcpy(p, GRPC_SLICE_START_PTR(slice), length);
 }
 
 /*
@@ -817,9 +817,9 @@
       result = NO_ACTION_POSSIBLE;
       CRONET_LOG(GPR_DEBUG, "Stream is either cancelled or failed.");
     } else {
-      gpr_slice_buffer write_slice_buffer;
-      gpr_slice slice;
-      gpr_slice_buffer_init(&write_slice_buffer);
+      grpc_slice_buffer write_slice_buffer;
+      grpc_slice slice;
+      grpc_slice_buffer_init(&write_slice_buffer);
       grpc_byte_stream_next(NULL, stream_op->send_message, &slice,
                             stream_op->send_message->length, NULL);
       /* Check that compression flag is OFF. We don't support compression yet.
@@ -828,7 +828,7 @@
         gpr_log(GPR_ERROR, "Compression is not supported");
         GPR_ASSERT(stream_op->send_message->flags == 0);
       }
-      gpr_slice_buffer_add(&write_slice_buffer, slice);
+      grpc_slice_buffer_add(&write_slice_buffer, slice);
       if (write_slice_buffer.count != 1) {
         /* Empty request not handled yet */
         gpr_log(GPR_ERROR, "Empty request is not supported");
@@ -891,7 +891,7 @@
         } else {
           stream_state->rs.remaining_bytes = 0;
           CRONET_LOG(GPR_DEBUG, "read operation complete. Empty response.");
-          gpr_slice_buffer_init(&stream_state->rs.read_slice_buffer);
+          grpc_slice_buffer_init(&stream_state->rs.read_slice_buffer);
           grpc_slice_buffer_stream_init(&stream_state->rs.sbs,
                                         &stream_state->rs.read_slice_buffer, 0);
           *((grpc_byte_buffer **)stream_op->recv_message) =
@@ -918,15 +918,15 @@
       }
     } else if (stream_state->rs.remaining_bytes == 0) {
       CRONET_LOG(GPR_DEBUG, "read operation complete");
-      gpr_slice read_data_slice =
-          gpr_slice_malloc((uint32_t)stream_state->rs.length_field);
-      uint8_t *dst_p = GPR_SLICE_START_PTR(read_data_slice);
+      grpc_slice read_data_slice =
+          grpc_slice_malloc((uint32_t)stream_state->rs.length_field);
+      uint8_t *dst_p = GRPC_SLICE_START_PTR(read_data_slice);
       memcpy(dst_p, stream_state->rs.read_buffer,
              (size_t)stream_state->rs.length_field);
       free_read_buffer(s);
-      gpr_slice_buffer_init(&stream_state->rs.read_slice_buffer);
-      gpr_slice_buffer_add(&stream_state->rs.read_slice_buffer,
-                           read_data_slice);
+      grpc_slice_buffer_init(&stream_state->rs.read_slice_buffer);
+      grpc_slice_buffer_add(&stream_state->rs.read_slice_buffer,
+                            read_data_slice);
       grpc_slice_buffer_stream_init(&stream_state->rs.sbs,
                                     &stream_state->rs.read_slice_buffer, 0);
       *((grpc_byte_buffer **)stream_op->recv_message) =
diff --git a/src/core/lib/channel/channel_stack.c b/src/core/lib/channel/channel_stack.c
index 2c53679..9da8195 100644
--- a/src/core/lib/channel/channel_stack.c
+++ b/src/core/lib/channel/channel_stack.c
@@ -288,7 +288,7 @@
 void grpc_call_element_send_cancel_with_message(grpc_exec_ctx *exec_ctx,
                                                 grpc_call_element *elem,
                                                 grpc_status_code status,
-                                                gpr_slice *optional_message) {
+                                                grpc_slice *optional_message) {
   grpc_transport_stream_op *op = gpr_malloc(sizeof(*op));
   memset(op, 0, sizeof(*op));
   op->on_complete = grpc_closure_create(destroy_op, op);
@@ -300,7 +300,7 @@
 void grpc_call_element_send_close_with_message(grpc_exec_ctx *exec_ctx,
                                                grpc_call_element *elem,
                                                grpc_status_code status,
-                                               gpr_slice *optional_message) {
+                                               grpc_slice *optional_message) {
   grpc_transport_stream_op *op = gpr_malloc(sizeof(*op));
   memset(op, 0, sizeof(*op));
   op->on_complete = grpc_closure_create(destroy_op, op);
diff --git a/src/core/lib/channel/channel_stack.h b/src/core/lib/channel/channel_stack.h
index 27f3be7..0d58994 100644
--- a/src/core/lib/channel/channel_stack.h
+++ b/src/core/lib/channel/channel_stack.h
@@ -289,12 +289,12 @@
 void grpc_call_element_send_cancel_with_message(grpc_exec_ctx *exec_ctx,
                                                 grpc_call_element *cur_elem,
                                                 grpc_status_code status,
-                                                gpr_slice *optional_message);
+                                                grpc_slice *optional_message);
 
 void grpc_call_element_send_close_with_message(grpc_exec_ctx *exec_ctx,
                                                grpc_call_element *cur_elem,
                                                grpc_status_code status,
-                                               gpr_slice *optional_message);
+                                               grpc_slice *optional_message);
 
 extern int grpc_trace_channel;
 
diff --git a/src/core/lib/channel/compress_filter.c b/src/core/lib/channel/compress_filter.c
index 23b7dfb..294aa2f 100644
--- a/src/core/lib/channel/compress_filter.c
+++ b/src/core/lib/channel/compress_filter.c
@@ -35,9 +35,9 @@
 #include <string.h>
 
 #include <grpc/compression.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice_buffer.h>
 
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/compress_filter.h"
@@ -50,7 +50,7 @@
 int grpc_compression_trace = 0;
 
 typedef struct call_data {
-  gpr_slice_buffer slices; /**< Buffers up input slices to be compressed */
+  grpc_slice_buffer slices; /**< Buffers up input slices to be compressed */
   grpc_linked_mdelem compression_algorithm_storage;
   grpc_linked_mdelem accept_encoding_storage;
   uint32_t remaining_slice_bytes;
@@ -63,7 +63,7 @@
   grpc_transport_stream_op *send_op;
   uint32_t send_length;
   uint32_t send_flags;
-  gpr_slice incoming_slice;
+  grpc_slice incoming_slice;
   grpc_slice_buffer_stream replacement_stream;
   grpc_closure *post_send;
   grpc_closure send_done;
@@ -161,7 +161,7 @@
 static void send_done(grpc_exec_ctx *exec_ctx, void *elemp, grpc_error *error) {
   grpc_call_element *elem = elemp;
   call_data *calld = elem->call_data;
-  gpr_slice_buffer_reset_and_unref(&calld->slices);
+  grpc_slice_buffer_reset_and_unref(&calld->slices);
   calld->post_send->cb(exec_ctx, calld->post_send->cb_arg, error);
 }
 
@@ -169,8 +169,8 @@
                                 grpc_call_element *elem) {
   call_data *calld = elem->call_data;
   int did_compress;
-  gpr_slice_buffer tmp;
-  gpr_slice_buffer_init(&tmp);
+  grpc_slice_buffer tmp;
+  grpc_slice_buffer_init(&tmp);
   did_compress =
       grpc_msg_compress(calld->compression_algorithm, &calld->slices, &tmp);
   if (did_compress) {
@@ -185,7 +185,7 @@
                          " bytes (%.2f%% savings)",
               algo_name, before_size, after_size, 100 * savings_ratio);
     }
-    gpr_slice_buffer_swap(&calld->slices, &tmp);
+    grpc_slice_buffer_swap(&calld->slices, &tmp);
     calld->send_flags |= GRPC_WRITE_INTERNAL_COMPRESS;
   } else {
     if (grpc_compression_trace) {
@@ -199,7 +199,7 @@
     }
   }
 
-  gpr_slice_buffer_destroy(&tmp);
+  grpc_slice_buffer_destroy(&tmp);
 
   grpc_slice_buffer_stream_init(&calld->replacement_stream, &calld->slices,
                                 calld->send_flags);
@@ -213,7 +213,7 @@
 static void got_slice(grpc_exec_ctx *exec_ctx, void *elemp, grpc_error *error) {
   grpc_call_element *elem = elemp;
   call_data *calld = elem->call_data;
-  gpr_slice_buffer_add(&calld->slices, calld->incoming_slice);
+  grpc_slice_buffer_add(&calld->slices, calld->incoming_slice);
   if (calld->send_length == calld->slices.length) {
     finish_send_message(exec_ctx, elem);
   } else {
@@ -227,7 +227,7 @@
   while (grpc_byte_stream_next(exec_ctx, calld->send_op->send_message,
                                &calld->incoming_slice, ~(size_t)0,
                                &calld->got_slice)) {
-    gpr_slice_buffer_add(&calld->slices, calld->incoming_slice);
+    grpc_slice_buffer_add(&calld->slices, calld->incoming_slice);
     if (calld->send_length == calld->slices.length) {
       finish_send_message(exec_ctx, elem);
       break;
@@ -267,7 +267,7 @@
   call_data *calld = elem->call_data;
 
   /* initialize members */
-  gpr_slice_buffer_init(&calld->slices);
+  grpc_slice_buffer_init(&calld->slices);
   calld->has_compression_algorithm = 0;
   grpc_closure_init(&calld->got_slice, got_slice, elem);
   grpc_closure_init(&calld->send_done, send_done, elem);
@@ -281,7 +281,7 @@
                               void *ignored) {
   /* grab pointers to our data from the call element */
   call_data *calld = elem->call_data;
-  gpr_slice_buffer_destroy(&calld->slices);
+  grpc_slice_buffer_destroy(&calld->slices);
 }
 
 /* Constructor for channel_data */
diff --git a/src/core/lib/channel/connected_channel.c b/src/core/lib/channel/connected_channel.c
index 918379c..0e62d58 100644
--- a/src/core/lib/channel/connected_channel.c
+++ b/src/core/lib/channel/connected_channel.c
@@ -38,9 +38,9 @@
 #include <string.h>
 
 #include <grpc/byte_buffer.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice_buffer.h>
 #include "src/core/lib/profiling/timers.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/transport/transport.h"
diff --git a/src/core/lib/channel/deadline_filter.c b/src/core/lib/channel/deadline_filter.c
index d2ea525..449eb7b 100644
--- a/src/core/lib/channel/deadline_filter.c
+++ b/src/core/lib/channel/deadline_filter.c
@@ -55,10 +55,10 @@
   deadline_state->timer_pending = false;
   gpr_mu_unlock(&deadline_state->timer_mu);
   if (error != GRPC_ERROR_CANCELLED) {
-    gpr_slice msg = gpr_slice_from_static_string("Deadline Exceeded");
+    grpc_slice msg = grpc_slice_from_static_string("Deadline Exceeded");
     grpc_call_element_send_cancel_with_message(
         exec_ctx, elem, GRPC_STATUS_DEADLINE_EXCEEDED, &msg);
-    gpr_slice_unref(msg);
+    grpc_slice_unref(msg);
   }
   GRPC_CALL_STACK_UNREF(exec_ctx, deadline_state->call_stack, "deadline_timer");
 }
diff --git a/src/core/lib/channel/handshaker.c b/src/core/lib/channel/handshaker.c
index 0d75988..a45a399 100644
--- a/src/core/lib/channel/handshaker.c
+++ b/src/core/lib/channel/handshaker.c
@@ -62,7 +62,7 @@
                                   grpc_handshaker* handshaker,
                                   grpc_endpoint* endpoint,
                                   grpc_channel_args* args,
-                                  gpr_slice_buffer* read_buffer,
+                                  grpc_slice_buffer* read_buffer,
                                   gpr_timespec deadline,
                                   grpc_tcp_server_acceptor* acceptor,
                                   grpc_handshaker_done_cb cb, void* user_data) {
@@ -146,8 +146,8 @@
 static void call_next_handshaker(grpc_exec_ctx* exec_ctx,
                                  grpc_endpoint* endpoint,
                                  grpc_channel_args* args,
-                                 gpr_slice_buffer* read_buffer, void* user_data,
-                                 grpc_error* error) {
+                                 grpc_slice_buffer* read_buffer,
+                                 void* user_data, grpc_error* error) {
   grpc_handshake_manager* mgr = user_data;
   GPR_ASSERT(mgr->state != NULL);
   GPR_ASSERT(mgr->state->index < mgr->count);
@@ -183,8 +183,8 @@
     gpr_timespec deadline, grpc_tcp_server_acceptor* acceptor,
     grpc_handshaker_done_cb cb, void* user_data) {
   grpc_channel_args* args_copy = grpc_channel_args_copy(args);
-  gpr_slice_buffer* read_buffer = gpr_malloc(sizeof(*read_buffer));
-  gpr_slice_buffer_init(read_buffer);
+  grpc_slice_buffer* read_buffer = gpr_malloc(sizeof(*read_buffer));
+  grpc_slice_buffer_init(read_buffer);
   if (mgr->count == 0) {
     // No handshakers registered, so we just immediately call the done
     // callback with the passed-in endpoint.
diff --git a/src/core/lib/channel/handshaker.h b/src/core/lib/channel/handshaker.h
index d574b46..f8a36c6 100644
--- a/src/core/lib/channel/handshaker.h
+++ b/src/core/lib/channel/handshaker.h
@@ -59,7 +59,7 @@
 typedef void (*grpc_handshaker_done_cb)(grpc_exec_ctx* exec_ctx,
                                         grpc_endpoint* endpoint,
                                         grpc_channel_args* args,
-                                        gpr_slice_buffer* read_buffer,
+                                        grpc_slice_buffer* read_buffer,
                                         void* user_data, grpc_error* error);
 
 struct grpc_handshaker_vtable {
@@ -77,7 +77,7 @@
   /// \a acceptor will be NULL for client-side handshakers.
   void (*do_handshake)(grpc_exec_ctx* exec_ctx, grpc_handshaker* handshaker,
                        grpc_endpoint* endpoint, grpc_channel_args* args,
-                       gpr_slice_buffer* read_buffer, gpr_timespec deadline,
+                       grpc_slice_buffer* read_buffer, gpr_timespec deadline,
                        grpc_tcp_server_acceptor* acceptor,
                        grpc_handshaker_done_cb cb, void* user_data);
 };
@@ -103,7 +103,7 @@
                                   grpc_handshaker* handshaker,
                                   grpc_endpoint* endpoint,
                                   grpc_channel_args* args,
-                                  gpr_slice_buffer* read_buffer,
+                                  grpc_slice_buffer* read_buffer,
                                   gpr_timespec deadline,
                                   grpc_tcp_server_acceptor* acceptor,
                                   grpc_handshaker_done_cb cb, void* user_data);
diff --git a/src/core/lib/channel/http_client_filter.c b/src/core/lib/channel/http_client_filter.c
index 1dc05fb..0714f31 100644
--- a/src/core/lib/channel/http_client_filter.c
+++ b/src/core/lib/channel/http_client_filter.c
@@ -62,9 +62,9 @@
   grpc_transport_stream_op send_op;
   uint32_t send_length;
   uint32_t send_flags;
-  gpr_slice incoming_slice;
+  grpc_slice incoming_slice;
   grpc_slice_buffer_stream replacement_stream;
-  gpr_slice_buffer slices;
+  grpc_slice_buffer slices;
   /* flag that indicates that all slices of send_messages aren't availble */
   bool send_message_blocked;
 
@@ -101,7 +101,7 @@
     char *message_string;
     gpr_asprintf(&message_string, "Received http2 header with status: %s",
                  grpc_mdstr_as_c_string(md->value));
-    gpr_slice message = gpr_slice_from_copied_string(message_string);
+    grpc_slice message = grpc_slice_from_copied_string(message_string);
     gpr_free(message_string);
     grpc_call_element_send_close_with_message(a->exec_ctx, a->elem,
                                               GRPC_STATUS_CANCELLED, &message);
@@ -155,7 +155,7 @@
 static void send_done(grpc_exec_ctx *exec_ctx, void *elemp, grpc_error *error) {
   grpc_call_element *elem = elemp;
   call_data *calld = elem->call_data;
-  gpr_slice_buffer_reset_and_unref(&calld->slices);
+  grpc_slice_buffer_reset_and_unref(&calld->slices);
   calld->post_send->cb(exec_ctx, calld->post_send->cb_arg, error);
 }
 
@@ -176,10 +176,10 @@
   while (grpc_byte_stream_next(exec_ctx, calld->send_op.send_message,
                                &calld->incoming_slice, ~(size_t)0,
                                &calld->got_slice)) {
-    memcpy(wrptr, GPR_SLICE_START_PTR(calld->incoming_slice),
-           GPR_SLICE_LENGTH(calld->incoming_slice));
-    wrptr += GPR_SLICE_LENGTH(calld->incoming_slice);
-    gpr_slice_buffer_add(&calld->slices, calld->incoming_slice);
+    memcpy(wrptr, GRPC_SLICE_START_PTR(calld->incoming_slice),
+           GRPC_SLICE_LENGTH(calld->incoming_slice));
+    wrptr += GRPC_SLICE_LENGTH(calld->incoming_slice);
+    grpc_slice_buffer_add(&calld->slices, calld->incoming_slice);
     if (calld->send_length == calld->slices.length) {
       calld->send_message_blocked = false;
       break;
@@ -191,7 +191,7 @@
   grpc_call_element *elem = elemp;
   call_data *calld = elem->call_data;
   calld->send_message_blocked = false;
-  gpr_slice_buffer_add(&calld->slices, calld->incoming_slice);
+  grpc_slice_buffer_add(&calld->slices, calld->incoming_slice);
   if (calld->send_length == calld->slices.length) {
     /* Pass down the original send_message op that was blocked.*/
     grpc_slice_buffer_stream_init(&calld->replacement_stream, &calld->slices,
@@ -311,7 +311,7 @@
   calld->on_done_recv = NULL;
   calld->on_complete = NULL;
   calld->payload_bytes = NULL;
-  gpr_slice_buffer_init(&calld->slices);
+  grpc_slice_buffer_init(&calld->slices);
   grpc_closure_init(&calld->hc_on_recv, hc_on_recv, elem);
   grpc_closure_init(&calld->hc_on_complete, hc_on_complete, elem);
   grpc_closure_init(&calld->got_slice, got_slice, elem);
@@ -324,7 +324,7 @@
                               const grpc_call_final_info *final_info,
                               void *ignored) {
   call_data *calld = elem->call_data;
-  gpr_slice_buffer_destroy(&calld->slices);
+  grpc_slice_buffer_destroy(&calld->slices);
 }
 
 static grpc_mdelem *scheme_from_args(const grpc_channel_args *args) {
diff --git a/src/core/lib/channel/http_server_filter.c b/src/core/lib/channel/http_server_filter.c
index f2221fb..1063185 100644
--- a/src/core/lib/channel/http_server_filter.c
+++ b/src/core/lib/channel/http_server_filter.c
@@ -68,7 +68,7 @@
   grpc_closure *recv_message_ready;
   grpc_closure *on_complete;
   grpc_byte_stream **pp_recv_message;
-  gpr_slice_buffer read_slice_buffer;
+  grpc_slice_buffer read_slice_buffer;
   grpc_slice_buffer_stream read_stream;
 
   /** Receive closures are chained: we inject this closure as the on_done_recv
@@ -162,9 +162,9 @@
     /* Retrieve the payload from the value of the 'grpc-internal-payload-bin'
        header field */
     calld->seen_payload_bin = 1;
-    gpr_slice_buffer_init(&calld->read_slice_buffer);
-    gpr_slice_buffer_add(&calld->read_slice_buffer,
-                         gpr_slice_ref(md->value->slice));
+    grpc_slice_buffer_init(&calld->read_slice_buffer);
+    grpc_slice_buffer_add(&calld->read_slice_buffer,
+                          grpc_slice_ref(md->value->slice));
     grpc_slice_buffer_stream_init(&calld->read_stream,
                                   &calld->read_slice_buffer, 0);
     return NULL;
diff --git a/src/core/lib/channel/message_size_filter.c b/src/core/lib/channel/message_size_filter.c
index 7dc5ae0..85c3077 100644
--- a/src/core/lib/channel/message_size_filter.c
+++ b/src/core/lib/channel/message_size_filter.c
@@ -141,7 +141,7 @@
     char* message_string;
     gpr_asprintf(&message_string, "Sent message larger than max (%u vs. %d)",
                  op->send_message->length, calld->max_send_size);
-    gpr_slice message = gpr_slice_from_copied_string(message_string);
+    grpc_slice message = grpc_slice_from_copied_string(message_string);
     gpr_free(message_string);
     grpc_call_element_send_close_with_message(
         exec_ctx, elem, GRPC_STATUS_INVALID_ARGUMENT, &message);
diff --git a/src/core/lib/compression/message_compress.c b/src/core/lib/compression/message_compress.c
index cbe0b5a..6c245ac 100644
--- a/src/core/lib/compression/message_compress.c
+++ b/src/core/lib/compression/message_compress.c
@@ -42,31 +42,31 @@
 
 #define OUTPUT_BLOCK_SIZE 1024
 
-static int zlib_body(z_stream* zs, gpr_slice_buffer* input,
-                     gpr_slice_buffer* output,
+static int zlib_body(z_stream* zs, grpc_slice_buffer* input,
+                     grpc_slice_buffer* output,
                      int (*flate)(z_stream* zs, int flush)) {
   int r;
   int flush;
   size_t i;
-  gpr_slice outbuf = gpr_slice_malloc(OUTPUT_BLOCK_SIZE);
+  grpc_slice outbuf = grpc_slice_malloc(OUTPUT_BLOCK_SIZE);
   const uInt uint_max = ~(uInt)0;
 
-  GPR_ASSERT(GPR_SLICE_LENGTH(outbuf) <= uint_max);
-  zs->avail_out = (uInt)GPR_SLICE_LENGTH(outbuf);
-  zs->next_out = GPR_SLICE_START_PTR(outbuf);
+  GPR_ASSERT(GRPC_SLICE_LENGTH(outbuf) <= uint_max);
+  zs->avail_out = (uInt)GRPC_SLICE_LENGTH(outbuf);
+  zs->next_out = GRPC_SLICE_START_PTR(outbuf);
   flush = Z_NO_FLUSH;
   for (i = 0; i < input->count; i++) {
     if (i == input->count - 1) flush = Z_FINISH;
-    GPR_ASSERT(GPR_SLICE_LENGTH(input->slices[i]) <= uint_max);
-    zs->avail_in = (uInt)GPR_SLICE_LENGTH(input->slices[i]);
-    zs->next_in = GPR_SLICE_START_PTR(input->slices[i]);
+    GPR_ASSERT(GRPC_SLICE_LENGTH(input->slices[i]) <= uint_max);
+    zs->avail_in = (uInt)GRPC_SLICE_LENGTH(input->slices[i]);
+    zs->next_in = GRPC_SLICE_START_PTR(input->slices[i]);
     do {
       if (zs->avail_out == 0) {
-        gpr_slice_buffer_add_indexed(output, outbuf);
-        outbuf = gpr_slice_malloc(OUTPUT_BLOCK_SIZE);
-        GPR_ASSERT(GPR_SLICE_LENGTH(outbuf) <= uint_max);
-        zs->avail_out = (uInt)GPR_SLICE_LENGTH(outbuf);
-        zs->next_out = GPR_SLICE_START_PTR(outbuf);
+        grpc_slice_buffer_add_indexed(output, outbuf);
+        outbuf = grpc_slice_malloc(OUTPUT_BLOCK_SIZE);
+        GPR_ASSERT(GRPC_SLICE_LENGTH(outbuf) <= uint_max);
+        zs->avail_out = (uInt)GRPC_SLICE_LENGTH(outbuf);
+        zs->next_out = GRPC_SLICE_START_PTR(outbuf);
       }
       r = flate(zs, flush);
       if (r < 0 && r != Z_BUF_ERROR /* not fatal */) {
@@ -82,12 +82,12 @@
 
   GPR_ASSERT(outbuf.refcount);
   outbuf.data.refcounted.length -= zs->avail_out;
-  gpr_slice_buffer_add_indexed(output, outbuf);
+  grpc_slice_buffer_add_indexed(output, outbuf);
 
   return 1;
 
 error:
-  gpr_slice_unref(outbuf);
+  grpc_slice_unref(outbuf);
   return 0;
 }
 
@@ -97,7 +97,7 @@
 
 static void zfree_gpr(void* opaque, void* address) { gpr_free(address); }
 
-static int zlib_compress(gpr_slice_buffer* input, gpr_slice_buffer* output,
+static int zlib_compress(grpc_slice_buffer* input, grpc_slice_buffer* output,
                          int gzip) {
   z_stream zs;
   int r;
@@ -113,7 +113,7 @@
   r = zlib_body(&zs, input, output, deflate) && output->length < input->length;
   if (!r) {
     for (i = count_before; i < output->count; i++) {
-      gpr_slice_unref(output->slices[i]);
+      grpc_slice_unref(output->slices[i]);
     }
     output->count = count_before;
     output->length = length_before;
@@ -122,7 +122,7 @@
   return r;
 }
 
-static int zlib_decompress(gpr_slice_buffer* input, gpr_slice_buffer* output,
+static int zlib_decompress(grpc_slice_buffer* input, grpc_slice_buffer* output,
                            int gzip) {
   z_stream zs;
   int r;
@@ -137,7 +137,7 @@
   r = zlib_body(&zs, input, output, inflate);
   if (!r) {
     for (i = count_before; i < output->count; i++) {
-      gpr_slice_unref(output->slices[i]);
+      grpc_slice_unref(output->slices[i]);
     }
     output->count = count_before;
     output->length = length_before;
@@ -146,16 +146,16 @@
   return r;
 }
 
-static int copy(gpr_slice_buffer* input, gpr_slice_buffer* output) {
+static int copy(grpc_slice_buffer* input, grpc_slice_buffer* output) {
   size_t i;
   for (i = 0; i < input->count; i++) {
-    gpr_slice_buffer_add(output, gpr_slice_ref(input->slices[i]));
+    grpc_slice_buffer_add(output, grpc_slice_ref(input->slices[i]));
   }
   return 1;
 }
 
 static int compress_inner(grpc_compression_algorithm algorithm,
-                          gpr_slice_buffer* input, gpr_slice_buffer* output) {
+                          grpc_slice_buffer* input, grpc_slice_buffer* output) {
   switch (algorithm) {
     case GRPC_COMPRESS_NONE:
       /* the fallback path always needs to be send uncompressed: we simply
@@ -173,7 +173,7 @@
 }
 
 int grpc_msg_compress(grpc_compression_algorithm algorithm,
-                      gpr_slice_buffer* input, gpr_slice_buffer* output) {
+                      grpc_slice_buffer* input, grpc_slice_buffer* output) {
   if (!compress_inner(algorithm, input, output)) {
     copy(input, output);
     return 0;
@@ -182,7 +182,7 @@
 }
 
 int grpc_msg_decompress(grpc_compression_algorithm algorithm,
-                        gpr_slice_buffer* input, gpr_slice_buffer* output) {
+                        grpc_slice_buffer* input, grpc_slice_buffer* output) {
   switch (algorithm) {
     case GRPC_COMPRESS_NONE:
       return copy(input, output);
diff --git a/src/core/lib/compression/message_compress.h b/src/core/lib/compression/message_compress.h
index c69eaaf..448d36a 100644
--- a/src/core/lib/compression/message_compress.h
+++ b/src/core/lib/compression/message_compress.h
@@ -35,18 +35,18 @@
 #define GRPC_CORE_LIB_COMPRESSION_MESSAGE_COMPRESS_H
 
 #include <grpc/compression.h>
-#include <grpc/support/slice_buffer.h>
+#include <grpc/slice_buffer.h>
 
 /* compress 'input' to 'output' using 'algorithm'.
    On success, appends compressed slices to output and returns 1.
    On failure, appends uncompressed slices to output and returns 0. */
 int grpc_msg_compress(grpc_compression_algorithm algorithm,
-                      gpr_slice_buffer* input, gpr_slice_buffer* output);
+                      grpc_slice_buffer* input, grpc_slice_buffer* output);
 
 /* decompress 'input' to 'output' using 'algorithm'.
    On success, appends slices to output and returns 1.
    On failure, output is unchanged, and returns 0. */
 int grpc_msg_decompress(grpc_compression_algorithm algorithm,
-                        gpr_slice_buffer* input, gpr_slice_buffer* output);
+                        grpc_slice_buffer* input, grpc_slice_buffer* output);
 
 #endif /* GRPC_CORE_LIB_COMPRESSION_MESSAGE_COMPRESS_H */
diff --git a/src/core/lib/http/format_request.c b/src/core/lib/http/format_request.c
index e818b70..024664b 100644
--- a/src/core/lib/http/format_request.c
+++ b/src/core/lib/http/format_request.c
@@ -37,8 +37,8 @@
 #include <stdio.h>
 #include <string.h>
 
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
-#include <grpc/support/slice.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
 #include "src/core/lib/support/string.h"
@@ -65,7 +65,8 @@
   }
 }
 
-gpr_slice grpc_httpcli_format_get_request(const grpc_httpcli_request *request) {
+grpc_slice grpc_httpcli_format_get_request(
+    const grpc_httpcli_request *request) {
   gpr_strvec out;
   char *flat;
   size_t flat_len;
@@ -78,12 +79,12 @@
   flat = gpr_strvec_flatten(&out, &flat_len);
   gpr_strvec_destroy(&out);
 
-  return gpr_slice_new(flat, flat_len, gpr_free);
+  return grpc_slice_new(flat, flat_len, gpr_free);
 }
 
-gpr_slice grpc_httpcli_format_post_request(const grpc_httpcli_request *request,
-                                           const char *body_bytes,
-                                           size_t body_size) {
+grpc_slice grpc_httpcli_format_post_request(const grpc_httpcli_request *request,
+                                            const char *body_bytes,
+                                            size_t body_size) {
   gpr_strvec out;
   char *tmp;
   size_t out_len;
@@ -117,10 +118,10 @@
     out_len += body_size;
   }
 
-  return gpr_slice_new(tmp, out_len, gpr_free);
+  return grpc_slice_new(tmp, out_len, gpr_free);
 }
 
-gpr_slice grpc_httpcli_format_connect_request(
+grpc_slice grpc_httpcli_format_connect_request(
     const grpc_httpcli_request *request) {
   gpr_strvec out;
   gpr_strvec_init(&out);
@@ -130,5 +131,5 @@
   size_t flat_len;
   char *flat = gpr_strvec_flatten(&out, &flat_len);
   gpr_strvec_destroy(&out);
-  return gpr_slice_new(flat, flat_len, gpr_free);
+  return grpc_slice_new(flat, flat_len, gpr_free);
 }
diff --git a/src/core/lib/http/format_request.h b/src/core/lib/http/format_request.h
index 7abd55f..1c8e3f6 100644
--- a/src/core/lib/http/format_request.h
+++ b/src/core/lib/http/format_request.h
@@ -34,14 +34,14 @@
 #ifndef GRPC_CORE_LIB_HTTP_FORMAT_REQUEST_H
 #define GRPC_CORE_LIB_HTTP_FORMAT_REQUEST_H
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include "src/core/lib/http/httpcli.h"
 
-gpr_slice grpc_httpcli_format_get_request(const grpc_httpcli_request *request);
-gpr_slice grpc_httpcli_format_post_request(const grpc_httpcli_request *request,
-                                           const char *body_bytes,
-                                           size_t body_size);
-gpr_slice grpc_httpcli_format_connect_request(
+grpc_slice grpc_httpcli_format_get_request(const grpc_httpcli_request *request);
+grpc_slice grpc_httpcli_format_post_request(const grpc_httpcli_request *request,
+                                            const char *body_bytes,
+                                            size_t body_size);
+grpc_slice grpc_httpcli_format_connect_request(
     const grpc_httpcli_request *request);
 
 #endif /* GRPC_CORE_LIB_HTTP_FORMAT_REQUEST_H */
diff --git a/src/core/lib/http/httpcli.c b/src/core/lib/http/httpcli.c
index 411e669..fdb8aba 100644
--- a/src/core/lib/http/httpcli.c
+++ b/src/core/lib/http/httpcli.c
@@ -50,7 +50,7 @@
 #include "src/core/lib/support/string.h"
 
 typedef struct {
-  gpr_slice request_text;
+  grpc_slice request_text;
   grpc_http_parser parser;
   grpc_resolved_addresses *addresses;
   size_t next_address;
@@ -64,8 +64,8 @@
   grpc_httpcli_context *context;
   grpc_polling_entity *pollent;
   grpc_iomgr_object iomgr_obj;
-  gpr_slice_buffer incoming;
-  gpr_slice_buffer outgoing;
+  grpc_slice_buffer incoming;
+  grpc_slice_buffer outgoing;
   grpc_closure on_read;
   grpc_closure done_write;
   grpc_closure connected;
@@ -111,12 +111,12 @@
   if (req->ep != NULL) {
     grpc_endpoint_destroy(exec_ctx, req->ep);
   }
-  gpr_slice_unref(req->request_text);
+  grpc_slice_unref(req->request_text);
   gpr_free(req->host);
   gpr_free(req->ssl_host_override);
   grpc_iomgr_unregister_object(&req->iomgr_obj);
-  gpr_slice_buffer_destroy(&req->incoming);
-  gpr_slice_buffer_destroy(&req->outgoing);
+  grpc_slice_buffer_destroy(&req->incoming);
+  grpc_slice_buffer_destroy(&req->outgoing);
   GRPC_ERROR_UNREF(req->overall_error);
   grpc_resource_quota_internal_unref(exec_ctx, req->resource_quota);
   gpr_free(req);
@@ -144,7 +144,7 @@
   size_t i;
 
   for (i = 0; i < req->incoming.count; i++) {
-    if (GPR_SLICE_LENGTH(req->incoming.slices[i])) {
+    if (GRPC_SLICE_LENGTH(req->incoming.slices[i])) {
       req->have_read_byte = 1;
       grpc_error *err =
           grpc_http_parser_parse(&req->parser, req->incoming.slices[i], NULL);
@@ -178,8 +178,8 @@
 }
 
 static void start_write(grpc_exec_ctx *exec_ctx, internal_request *req) {
-  gpr_slice_ref(req->request_text);
-  gpr_slice_buffer_add(&req->outgoing, req->request_text);
+  grpc_slice_ref(req->request_text);
+  grpc_slice_buffer_add(&req->outgoing, req->request_text);
   grpc_endpoint_write(exec_ctx, req->ep, &req->outgoing, &req->done_write);
 }
 
@@ -253,7 +253,7 @@
                                    const grpc_httpcli_request *request,
                                    gpr_timespec deadline, grpc_closure *on_done,
                                    grpc_httpcli_response *response,
-                                   const char *name, gpr_slice request_text) {
+                                   const char *name, grpc_slice request_text) {
   internal_request *req = gpr_malloc(sizeof(internal_request));
   memset(req, 0, sizeof(*req));
   req->request_text = request_text;
@@ -268,8 +268,8 @@
   req->resource_quota = grpc_resource_quota_internal_ref(resource_quota);
   grpc_closure_init(&req->on_read, on_read, req);
   grpc_closure_init(&req->done_write, done_write, req);
-  gpr_slice_buffer_init(&req->incoming);
-  gpr_slice_buffer_init(&req->outgoing);
+  grpc_slice_buffer_init(&req->incoming);
+  grpc_slice_buffer_init(&req->outgoing);
   grpc_iomgr_register_object(&req->iomgr_obj, name);
   req->host = gpr_strdup(request->host);
   req->ssl_host_override = gpr_strdup(request->ssl_host_override);
diff --git a/src/core/lib/http/httpcli_security_connector.c b/src/core/lib/http/httpcli_security_connector.c
index 0006e80..24d264c 100644
--- a/src/core/lib/http/httpcli_security_connector.c
+++ b/src/core/lib/http/httpcli_security_connector.c
@@ -61,7 +61,7 @@
 static void httpcli_ssl_do_handshake(grpc_exec_ctx *exec_ctx,
                                      grpc_channel_security_connector *sc,
                                      grpc_endpoint *nonsecure_endpoint,
-                                     gpr_slice_buffer *read_buffer,
+                                     grpc_slice_buffer *read_buffer,
                                      gpr_timespec deadline,
                                      grpc_security_handshake_done_cb cb,
                                      void *user_data) {
diff --git a/src/core/lib/http/parser.c b/src/core/lib/http/parser.c
index be9e9b6..2f84adc 100644
--- a/src/core/lib/http/parser.c
+++ b/src/core/lib/http/parser.c
@@ -333,12 +333,12 @@
   gpr_free(response->hdrs);
 }
 
-grpc_error *grpc_http_parser_parse(grpc_http_parser *parser, gpr_slice slice,
+grpc_error *grpc_http_parser_parse(grpc_http_parser *parser, grpc_slice slice,
                                    size_t *start_of_body) {
-  for (size_t i = 0; i < GPR_SLICE_LENGTH(slice); i++) {
+  for (size_t i = 0; i < GRPC_SLICE_LENGTH(slice); i++) {
     bool found_body_start = false;
     grpc_error *err =
-        addbyte(parser, GPR_SLICE_START_PTR(slice)[i], &found_body_start);
+        addbyte(parser, GRPC_SLICE_START_PTR(slice)[i], &found_body_start);
     if (err != GRPC_ERROR_NONE) return err;
     if (found_body_start && start_of_body != NULL) *start_of_body = i + 1;
   }
diff --git a/src/core/lib/http/parser.h b/src/core/lib/http/parser.h
index fab4297..a68011d 100644
--- a/src/core/lib/http/parser.h
+++ b/src/core/lib/http/parser.h
@@ -34,8 +34,8 @@
 #ifndef GRPC_CORE_LIB_HTTP_PARSER_H
 #define GRPC_CORE_LIB_HTTP_PARSER_H
 
+#include <grpc/slice.h>
 #include <grpc/support/port_platform.h>
-#include <grpc/support/slice.h>
 #include "src/core/lib/iomgr/error.h"
 
 /* Maximum length of a header string of the form 'Key: Value\r\n' */
@@ -114,7 +114,7 @@
 void grpc_http_parser_destroy(grpc_http_parser *parser);
 
 /* Sets \a start_of_body to the offset in \a slice of the start of the body. */
-grpc_error *grpc_http_parser_parse(grpc_http_parser *parser, gpr_slice slice,
+grpc_error *grpc_http_parser_parse(grpc_http_parser *parser, grpc_slice slice,
                                    size_t *start_of_body);
 grpc_error *grpc_http_parser_eof(grpc_http_parser *parser);
 
diff --git a/src/core/lib/iomgr/endpoint.c b/src/core/lib/iomgr/endpoint.c
index 74fa9c4..a4b6668 100644
--- a/src/core/lib/iomgr/endpoint.c
+++ b/src/core/lib/iomgr/endpoint.c
@@ -34,12 +34,12 @@
 #include "src/core/lib/iomgr/endpoint.h"
 
 void grpc_endpoint_read(grpc_exec_ctx* exec_ctx, grpc_endpoint* ep,
-                        gpr_slice_buffer* slices, grpc_closure* cb) {
+                        grpc_slice_buffer* slices, grpc_closure* cb) {
   ep->vtable->read(exec_ctx, ep, slices, cb);
 }
 
 void grpc_endpoint_write(grpc_exec_ctx* exec_ctx, grpc_endpoint* ep,
-                         gpr_slice_buffer* slices, grpc_closure* cb) {
+                         grpc_slice_buffer* slices, grpc_closure* cb) {
   ep->vtable->write(exec_ctx, ep, slices, cb);
 }
 
diff --git a/src/core/lib/iomgr/endpoint.h b/src/core/lib/iomgr/endpoint.h
index 0ac5486..bf211ca 100644
--- a/src/core/lib/iomgr/endpoint.h
+++ b/src/core/lib/iomgr/endpoint.h
@@ -34,8 +34,8 @@
 #ifndef GRPC_CORE_LIB_IOMGR_ENDPOINT_H
 #define GRPC_CORE_LIB_IOMGR_ENDPOINT_H
 
-#include <grpc/support/slice.h>
-#include <grpc/support/slice_buffer.h>
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/time.h>
 #include "src/core/lib/iomgr/pollset.h"
 #include "src/core/lib/iomgr/pollset_set.h"
@@ -49,9 +49,9 @@
 
 struct grpc_endpoint_vtable {
   void (*read)(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-               gpr_slice_buffer *slices, grpc_closure *cb);
+               grpc_slice_buffer *slices, grpc_closure *cb);
   void (*write)(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                gpr_slice_buffer *slices, grpc_closure *cb);
+                grpc_slice_buffer *slices, grpc_closure *cb);
   grpc_workqueue *(*get_workqueue)(grpc_endpoint *ep);
   void (*add_to_pollset)(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
                          grpc_pollset *pollset);
@@ -69,7 +69,7 @@
    Valid slices may be placed into \a slices even when the callback is
    invoked with error != GRPC_ERROR_NONE. */
 void grpc_endpoint_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                        gpr_slice_buffer *slices, grpc_closure *cb);
+                        grpc_slice_buffer *slices, grpc_closure *cb);
 
 char *grpc_endpoint_get_peer(grpc_endpoint *ep);
 
@@ -87,7 +87,7 @@
    it is a valid slice buffer.
    */
 void grpc_endpoint_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                         gpr_slice_buffer *slices, grpc_closure *cb);
+                         grpc_slice_buffer *slices, grpc_closure *cb);
 
 /* Causes any pending and future read/write callbacks to run immediately with
    success==0 */
diff --git a/src/core/lib/iomgr/load_file.c b/src/core/lib/iomgr/load_file.c
index b62ecbc..217bc5d 100644
--- a/src/core/lib/iomgr/load_file.c
+++ b/src/core/lib/iomgr/load_file.c
@@ -44,10 +44,10 @@
 #include "src/core/lib/support/string.h"
 
 grpc_error *grpc_load_file(const char *filename, int add_null_terminator,
-                           gpr_slice *output) {
+                           grpc_slice *output) {
   unsigned char *contents = NULL;
   size_t contents_size = 0;
-  gpr_slice result = gpr_empty_slice();
+  grpc_slice result = gpr_empty_slice();
   FILE *file;
   size_t bytes_read = 0;
   grpc_error *error = GRPC_ERROR_NONE;
@@ -72,7 +72,7 @@
   if (add_null_terminator) {
     contents[contents_size++] = 0;
   }
-  result = gpr_slice_new(contents, contents_size, gpr_free);
+  result = grpc_slice_new(contents, contents_size, gpr_free);
 
 end:
   *output = result;
diff --git a/src/core/lib/iomgr/load_file.h b/src/core/lib/iomgr/load_file.h
index 9aac222..73ee8c3 100644
--- a/src/core/lib/iomgr/load_file.h
+++ b/src/core/lib/iomgr/load_file.h
@@ -36,7 +36,7 @@
 
 #include <stdio.h>
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 
 #include "src/core/lib/iomgr/error.h"
 
@@ -47,7 +47,7 @@
 /* Loads the content of a file into a slice. add_null_terminator will add
    a NULL terminator if non-zero. */
 grpc_error *grpc_load_file(const char *filename, int add_null_terminator,
-                           gpr_slice *slice);
+                           grpc_slice *slice);
 
 #ifdef __cplusplus
 }
diff --git a/src/core/lib/iomgr/resource_quota.c b/src/core/lib/iomgr/resource_quota.c
index 1770d72..051a30b 100644
--- a/src/core/lib/iomgr/resource_quota.c
+++ b/src/core/lib/iomgr/resource_quota.c
@@ -347,7 +347,7 @@
  */
 
 typedef struct {
-  gpr_slice_refcount base;
+  grpc_slice_refcount base;
   gpr_refcount refs;
   grpc_resource_user *resource_user;
   size_t size;
@@ -364,7 +364,7 @@
     /* TODO(ctiller): this is dangerous, but I think safe for now:
        we have no guarantee here that we're at a safe point for creating an
        execution context, but we have no way of writing this code otherwise.
-       In the future: consider lifting gpr_slice to grpc, and offering an
+       In the future: consider lifting grpc_slice to grpc, and offering an
        internal_{ref,unref} pair that is execution context aware.
        Alternatively,
        make exec_ctx be thread local and 'do the right thing' (whatever that
@@ -377,15 +377,15 @@
   }
 }
 
-static gpr_slice ru_slice_create(grpc_resource_user *resource_user,
-                                 size_t size) {
+static grpc_slice ru_slice_create(grpc_resource_user *resource_user,
+                                  size_t size) {
   ru_slice_refcount *rc = gpr_malloc(sizeof(ru_slice_refcount) + size);
   rc->base.ref = ru_slice_ref;
   rc->base.unref = ru_slice_unref;
   gpr_ref_init(&rc->refs, 1);
   rc->resource_user = resource_user;
   rc->size = size;
-  gpr_slice slice;
+  grpc_slice slice;
   slice.refcount = &rc->base;
   slice.data.refcounted.bytes = (uint8_t *)(rc + 1);
   slice.data.refcounted.length = size;
@@ -483,7 +483,7 @@
   grpc_resource_user_slice_allocator *slice_allocator = arg;
   if (error == GRPC_ERROR_NONE) {
     for (size_t i = 0; i < slice_allocator->count; i++) {
-      gpr_slice_buffer_add_indexed(
+      grpc_slice_buffer_add_indexed(
           slice_allocator->dest, ru_slice_create(slice_allocator->resource_user,
                                                  slice_allocator->length));
     }
@@ -783,7 +783,7 @@
 void grpc_resource_user_alloc_slices(
     grpc_exec_ctx *exec_ctx,
     grpc_resource_user_slice_allocator *slice_allocator, size_t length,
-    size_t count, gpr_slice_buffer *dest) {
+    size_t count, grpc_slice_buffer *dest) {
   slice_allocator->length = length;
   slice_allocator->count = count;
   slice_allocator->dest = dest;
@@ -791,9 +791,9 @@
                            count * length, &slice_allocator->on_allocated);
 }
 
-gpr_slice grpc_resource_user_slice_malloc(grpc_exec_ctx *exec_ctx,
-                                          grpc_resource_user *resource_user,
-                                          size_t size) {
+grpc_slice grpc_resource_user_slice_malloc(grpc_exec_ctx *exec_ctx,
+                                           grpc_resource_user *resource_user,
+                                           size_t size) {
   grpc_resource_user_alloc(exec_ctx, resource_user, size, NULL);
   return ru_slice_create(resource_user, size);
 }
diff --git a/src/core/lib/iomgr/resource_quota.h b/src/core/lib/iomgr/resource_quota.h
index bbe0af1..0181fd9 100644
--- a/src/core/lib/iomgr/resource_quota.h
+++ b/src/core/lib/iomgr/resource_quota.h
@@ -127,7 +127,7 @@
   /* Number of slices to allocate on the current request */
   size_t count;
   /* Destination for slices to allocate on the current request */
-  gpr_slice_buffer *dest;
+  grpc_slice_buffer *dest;
   /* Parent resource user */
   grpc_resource_user *resource_user;
 } grpc_resource_user_slice_allocator;
@@ -143,11 +143,11 @@
 void grpc_resource_user_alloc_slices(
     grpc_exec_ctx *exec_ctx,
     grpc_resource_user_slice_allocator *slice_allocator, size_t length,
-    size_t count, gpr_slice_buffer *dest);
+    size_t count, grpc_slice_buffer *dest);
 
 /* Allocate one slice of length \a size synchronously. */
-gpr_slice grpc_resource_user_slice_malloc(grpc_exec_ctx *exec_ctx,
-                                          grpc_resource_user *resource_user,
-                                          size_t size);
+grpc_slice grpc_resource_user_slice_malloc(grpc_exec_ctx *exec_ctx,
+                                           grpc_resource_user *resource_user,
+                                           size_t size);
 
 #endif /* GRPC_CORE_LIB_IOMGR_RESOURCE_QUOTA_H */
diff --git a/src/core/lib/iomgr/tcp_client_windows.c b/src/core/lib/iomgr/tcp_client_windows.c
index 30f7c66..4d1e809 100644
--- a/src/core/lib/iomgr/tcp_client_windows.c
+++ b/src/core/lib/iomgr/tcp_client_windows.c
@@ -37,10 +37,10 @@
 
 #include "src/core/lib/iomgr/sockaddr_windows.h"
 
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/log_windows.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/useful.h>
 
 #include "src/core/lib/channel/channel_args.h"
diff --git a/src/core/lib/iomgr/tcp_posix.c b/src/core/lib/iomgr/tcp_posix.c
index 70416c6..c48f4e8 100644
--- a/src/core/lib/iomgr/tcp_posix.c
+++ b/src/core/lib/iomgr/tcp_posix.c
@@ -46,9 +46,9 @@
 #include <sys/types.h>
 #include <unistd.h>
 
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
@@ -56,6 +56,7 @@
 #include "src/core/lib/debug/trace.h"
 #include "src/core/lib/iomgr/ev_posix.h"
 #include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 
 #ifdef GRPC_HAVE_MSG_NOSIGNAL
@@ -83,10 +84,10 @@
   gpr_atm shutdown_count;
 
   /* garbage after the last read */
-  gpr_slice_buffer last_read_buffer;
+  grpc_slice_buffer last_read_buffer;
 
-  gpr_slice_buffer *incoming_buffer;
-  gpr_slice_buffer *outgoing_buffer;
+  grpc_slice_buffer *incoming_buffer;
+  grpc_slice_buffer *outgoing_buffer;
   /** slice within outgoing_buffer to write next */
   size_t outgoing_slice_idx;
   /** byte within outgoing_buffer->slices[outgoing_slice_idx] to write next */
@@ -120,7 +121,7 @@
 static void tcp_free(grpc_exec_ctx *exec_ctx, grpc_tcp *tcp) {
   grpc_fd_orphan(exec_ctx, tcp->em_fd, tcp->release_fd_cb, tcp->release_fd,
                  "tcp_unref_orphan");
-  gpr_slice_buffer_destroy(&tcp->last_read_buffer);
+  grpc_slice_buffer_destroy(&tcp->last_read_buffer);
   grpc_resource_user_unref(exec_ctx, tcp->resource_user);
   gpr_free(tcp->peer_string);
   gpr_free(tcp);
@@ -161,7 +162,7 @@
 static void tcp_destroy(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep) {
   grpc_network_status_unregister_endpoint(ep);
   grpc_tcp *tcp = (grpc_tcp *)ep;
-  gpr_slice_buffer_reset_and_unref(&tcp->last_read_buffer);
+  grpc_slice_buffer_reset_and_unref(&tcp->last_read_buffer);
   TCP_UNREF(exec_ctx, tcp, "destroy");
 }
 
@@ -175,8 +176,8 @@
     gpr_log(GPR_DEBUG, "read: error=%s", str);
     grpc_error_free_string(str);
     for (i = 0; i < tcp->incoming_buffer->count; i++) {
-      char *dump = gpr_dump_slice(tcp->incoming_buffer->slices[i],
-                                  GPR_DUMP_HEX | GPR_DUMP_ASCII);
+      char *dump = grpc_dump_slice(tcp->incoming_buffer->slices[i],
+                                   GPR_DUMP_HEX | GPR_DUMP_ASCII);
       gpr_log(GPR_DEBUG, "READ %p (peer=%s): %s", tcp, tcp->peer_string, dump);
       gpr_free(dump);
     }
@@ -200,8 +201,8 @@
   GPR_TIMER_BEGIN("tcp_continue_read", 0);
 
   for (i = 0; i < tcp->incoming_buffer->count; i++) {
-    iov[i].iov_base = GPR_SLICE_START_PTR(tcp->incoming_buffer->slices[i]);
-    iov[i].iov_len = GPR_SLICE_LENGTH(tcp->incoming_buffer->slices[i]);
+    iov[i].iov_base = GRPC_SLICE_START_PTR(tcp->incoming_buffer->slices[i]);
+    iov[i].iov_len = GRPC_SLICE_LENGTH(tcp->incoming_buffer->slices[i]);
   }
 
   msg.msg_name = NULL;
@@ -228,19 +229,19 @@
       /* We've consumed the edge, request a new one */
       grpc_fd_notify_on_read(exec_ctx, tcp->em_fd, &tcp->read_closure);
     } else {
-      gpr_slice_buffer_reset_and_unref(tcp->incoming_buffer);
+      grpc_slice_buffer_reset_and_unref(tcp->incoming_buffer);
       call_read_cb(exec_ctx, tcp, GRPC_OS_ERROR(errno, "recvmsg"));
       TCP_UNREF(exec_ctx, tcp, "read");
     }
   } else if (read_bytes == 0) {
     /* 0 read size ==> end of stream */
-    gpr_slice_buffer_reset_and_unref(tcp->incoming_buffer);
+    grpc_slice_buffer_reset_and_unref(tcp->incoming_buffer);
     call_read_cb(exec_ctx, tcp, GRPC_ERROR_CREATE("Socket closed"));
     TCP_UNREF(exec_ctx, tcp, "read");
   } else {
     GPR_ASSERT((size_t)read_bytes <= tcp->incoming_buffer->length);
     if ((size_t)read_bytes < tcp->incoming_buffer->length) {
-      gpr_slice_buffer_trim_end(
+      grpc_slice_buffer_trim_end(
           tcp->incoming_buffer,
           tcp->incoming_buffer->length - (size_t)read_bytes,
           &tcp->last_read_buffer);
@@ -259,8 +260,8 @@
                                      grpc_error *error) {
   grpc_tcp *tcp = tcpp;
   if (error != GRPC_ERROR_NONE) {
-    gpr_slice_buffer_reset_and_unref(tcp->incoming_buffer);
-    gpr_slice_buffer_reset_and_unref(&tcp->last_read_buffer);
+    grpc_slice_buffer_reset_and_unref(tcp->incoming_buffer);
+    grpc_slice_buffer_reset_and_unref(&tcp->last_read_buffer);
     call_read_cb(exec_ctx, tcp, GRPC_ERROR_REF(error));
     TCP_UNREF(exec_ctx, tcp, "read");
   } else {
@@ -285,8 +286,8 @@
   GPR_ASSERT(!tcp->finished_edge);
 
   if (error != GRPC_ERROR_NONE) {
-    gpr_slice_buffer_reset_and_unref(tcp->incoming_buffer);
-    gpr_slice_buffer_reset_and_unref(&tcp->last_read_buffer);
+    grpc_slice_buffer_reset_and_unref(tcp->incoming_buffer);
+    grpc_slice_buffer_reset_and_unref(&tcp->last_read_buffer);
     call_read_cb(exec_ctx, tcp, GRPC_ERROR_REF(error));
     TCP_UNREF(exec_ctx, tcp, "read");
   } else {
@@ -295,13 +296,13 @@
 }
 
 static void tcp_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                     gpr_slice_buffer *incoming_buffer, grpc_closure *cb) {
+                     grpc_slice_buffer *incoming_buffer, grpc_closure *cb) {
   grpc_tcp *tcp = (grpc_tcp *)ep;
   GPR_ASSERT(tcp->read_cb == NULL);
   tcp->read_cb = cb;
   tcp->incoming_buffer = incoming_buffer;
-  gpr_slice_buffer_reset_and_unref(incoming_buffer);
-  gpr_slice_buffer_swap(incoming_buffer, &tcp->last_read_buffer);
+  grpc_slice_buffer_reset_and_unref(incoming_buffer);
+  grpc_slice_buffer_swap(incoming_buffer, &tcp->last_read_buffer);
   TCP_REF(tcp, "read");
   if (tcp->finished_edge) {
     tcp->finished_edge = false;
@@ -331,11 +332,11 @@
                        iov_size != MAX_WRITE_IOVEC;
          iov_size++) {
       iov[iov_size].iov_base =
-          GPR_SLICE_START_PTR(
+          GRPC_SLICE_START_PTR(
               tcp->outgoing_buffer->slices[tcp->outgoing_slice_idx]) +
           tcp->outgoing_byte_idx;
       iov[iov_size].iov_len =
-          GPR_SLICE_LENGTH(
+          GRPC_SLICE_LENGTH(
               tcp->outgoing_buffer->slices[tcp->outgoing_slice_idx]) -
           tcp->outgoing_byte_idx;
       sending_length += iov[iov_size].iov_len;
@@ -376,7 +377,7 @@
       size_t slice_length;
 
       tcp->outgoing_slice_idx--;
-      slice_length = GPR_SLICE_LENGTH(
+      slice_length = GRPC_SLICE_LENGTH(
           tcp->outgoing_buffer->slices[tcp->outgoing_slice_idx]);
       if (slice_length > trailing) {
         tcp->outgoing_byte_idx = slice_length - trailing;
@@ -426,7 +427,7 @@
 }
 
 static void tcp_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                      gpr_slice_buffer *buf, grpc_closure *cb) {
+                      grpc_slice_buffer *buf, grpc_closure *cb) {
   grpc_tcp *tcp = (grpc_tcp *)ep;
   grpc_error *error = GRPC_ERROR_NONE;
 
@@ -435,7 +436,7 @@
 
     for (i = 0; i < buf->count; i++) {
       char *data =
-          gpr_dump_slice(buf->slices[i], GPR_DUMP_HEX | GPR_DUMP_ASCII);
+          grpc_dump_slice(buf->slices[i], GPR_DUMP_HEX | GPR_DUMP_ASCII);
       gpr_log(GPR_DEBUG, "WRITE %p (peer=%s): %s", tcp, tcp->peer_string, data);
       gpr_free(data);
     }
@@ -535,7 +536,7 @@
   tcp->read_closure.cb_arg = tcp;
   tcp->write_closure.cb = tcp_handle_write;
   tcp->write_closure.cb_arg = tcp;
-  gpr_slice_buffer_init(&tcp->last_read_buffer);
+  grpc_slice_buffer_init(&tcp->last_read_buffer);
   tcp->resource_user = grpc_resource_user_create(resource_quota, peer_string);
   grpc_resource_user_slice_allocator_init(
       &tcp->slice_allocator, tcp->resource_user, tcp_read_allocation_done, tcp);
@@ -558,7 +559,7 @@
   GPR_ASSERT(ep->vtable == &vtable);
   tcp->release_fd = fd;
   tcp->release_fd_cb = done;
-  gpr_slice_buffer_reset_and_unref(&tcp->last_read_buffer);
+  grpc_slice_buffer_reset_and_unref(&tcp->last_read_buffer);
   TCP_UNREF(exec_ctx, tcp, "destroy");
 }
 
diff --git a/src/core/lib/iomgr/tcp_uv.c b/src/core/lib/iomgr/tcp_uv.c
index 8e74c9e..8b58c04 100644
--- a/src/core/lib/iomgr/tcp_uv.c
+++ b/src/core/lib/iomgr/tcp_uv.c
@@ -62,9 +62,9 @@
   grpc_closure *read_cb;
   grpc_closure *write_cb;
 
-  gpr_slice read_slice;
-  gpr_slice_buffer *read_slices;
-  gpr_slice_buffer *write_slices;
+  GRPC_SLICE read_slice;
+  GRPC_SLICE_buffer *read_slices;
+  GRPC_SLICE_buffer *write_slices;
   uv_buf_t *write_buffers;
 
   grpc_resource_user resource_user;
@@ -123,14 +123,14 @@
   (void)suggested_size;
   tcp->read_slice = grpc_resource_user_slice_malloc(
       &exec_ctx, &tcp->resource_user, GRPC_TCP_DEFAULT_READ_SLICE_SIZE);
-  buf->base = (char *)GPR_SLICE_START_PTR(tcp->read_slice);
-  buf->len = GPR_SLICE_LENGTH(tcp->read_slice);
+  buf->base = (char *)GRPC_SLICE_START_PTR(tcp->read_slice);
+  buf->len = GRPC_SLICE_LENGTH(tcp->read_slice);
   grpc_exec_ctx_finish(&exec_ctx);
 }
 
 static void read_callback(uv_stream_t *stream, ssize_t nread,
                           const uv_buf_t *buf) {
-  gpr_slice sub;
+  GRPC_SLICE sub;
   grpc_error *error;
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
   grpc_tcp *tcp = stream->data;
@@ -147,8 +147,8 @@
     error = GRPC_ERROR_CREATE("EOF");
   } else if (nread > 0) {
     // Successful read
-    sub = gpr_slice_sub_no_ref(tcp->read_slice, 0, (size_t)nread);
-    gpr_slice_buffer_add(tcp->read_slices, sub);
+    sub = GRPC_SLICE_sub_no_ref(tcp->read_slice, 0, (size_t)nread);
+    GRPC_SLICE_buffer_add(tcp->read_slices, sub);
     error = GRPC_ERROR_NONE;
     if (grpc_tcp_trace) {
       size_t i;
@@ -172,14 +172,14 @@
 }
 
 static void uv_endpoint_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                             gpr_slice_buffer *read_slices, grpc_closure *cb) {
+                             GRPC_SLICE_buffer *read_slices, grpc_closure *cb) {
   grpc_tcp *tcp = (grpc_tcp *)ep;
   int status;
   grpc_error *error = GRPC_ERROR_NONE;
   GPR_ASSERT(tcp->read_cb == NULL);
   tcp->read_cb = cb;
   tcp->read_slices = read_slices;
-  gpr_slice_buffer_reset_and_unref(read_slices);
+  GRPC_SLICE_buffer_reset_and_unref(read_slices);
   TCP_REF(tcp, "read");
   // TODO(murgatroid99): figure out what the return value here means
   status =
@@ -220,13 +220,13 @@
 }
 
 static void uv_endpoint_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                              gpr_slice_buffer *write_slices,
+                              GRPC_SLICE_buffer *write_slices,
                               grpc_closure *cb) {
   grpc_tcp *tcp = (grpc_tcp *)ep;
   uv_buf_t *buffers;
   unsigned int buffer_count;
   unsigned int i;
-  gpr_slice *slice;
+  GRPC_SLICE *slice;
   uv_write_t *write_req;
 
   if (grpc_tcp_trace) {
@@ -263,8 +263,8 @@
                            sizeof(uv_buf_t) * buffer_count, NULL);
   for (i = 0; i < buffer_count; i++) {
     slice = &tcp->write_slices->slices[i];
-    buffers[i].base = (char *)GPR_SLICE_START_PTR(*slice);
-    buffers[i].len = GPR_SLICE_LENGTH(*slice);
+    buffers[i].base = (char *)GRPC_SLICE_START_PTR(*slice);
+    buffers[i].len = GRPC_SLICE_LENGTH(*slice);
   }
   tcp->write_buffers = buffers;
   write_req = &tcp->write_req;
diff --git a/src/core/lib/iomgr/tcp_windows.c b/src/core/lib/iomgr/tcp_windows.c
index e7abf29..1fb7edc 100644
--- a/src/core/lib/iomgr/tcp_windows.c
+++ b/src/core/lib/iomgr/tcp_windows.c
@@ -40,10 +40,10 @@
 #include "src/core/lib/iomgr/network_status_tracker.h"
 #include "src/core/lib/iomgr/sockaddr_windows.h"
 
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/log_windows.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
 
@@ -105,9 +105,9 @@
 
   grpc_closure *read_cb;
   grpc_closure *write_cb;
-  gpr_slice read_slice;
-  gpr_slice_buffer *write_slices;
-  gpr_slice_buffer *read_slices;
+  grpc_slice read_slice;
+  grpc_slice_buffer *write_slices;
+  grpc_slice_buffer *read_slices;
 
   grpc_resource_user *resource_user;
 
@@ -164,7 +164,7 @@
   grpc_tcp *tcp = tcpp;
   grpc_closure *cb = tcp->read_cb;
   grpc_winsocket *socket = tcp->socket;
-  gpr_slice sub;
+  grpc_slice sub;
   grpc_winsocket_callback_info *info = &socket->read_info;
 
   GRPC_ERROR_REF(error);
@@ -174,13 +174,13 @@
       char *utf8_message = gpr_format_message(info->wsa_error);
       error = GRPC_ERROR_CREATE(utf8_message);
       gpr_free(utf8_message);
-      gpr_slice_unref(tcp->read_slice);
+      grpc_slice_unref(tcp->read_slice);
     } else {
       if (info->bytes_transfered != 0 && !tcp->shutting_down) {
-        sub = gpr_slice_sub_no_ref(tcp->read_slice, 0, info->bytes_transfered);
-        gpr_slice_buffer_add(tcp->read_slices, sub);
+        sub = grpc_slice_sub_no_ref(tcp->read_slice, 0, info->bytes_transfered);
+        grpc_slice_buffer_add(tcp->read_slices, sub);
       } else {
-        gpr_slice_unref(tcp->read_slice);
+        grpc_slice_unref(tcp->read_slice);
         error = GRPC_ERROR_CREATE("End of TCP stream");
       }
     }
@@ -192,7 +192,7 @@
 }
 
 static void win_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                     gpr_slice_buffer *read_slices, grpc_closure *cb) {
+                     grpc_slice_buffer *read_slices, grpc_closure *cb) {
   grpc_tcp *tcp = (grpc_tcp *)ep;
   grpc_winsocket *handle = tcp->socket;
   grpc_winsocket_callback_info *info = &handle->read_info;
@@ -209,13 +209,13 @@
 
   tcp->read_cb = cb;
   tcp->read_slices = read_slices;
-  gpr_slice_buffer_reset_and_unref(read_slices);
+  grpc_slice_buffer_reset_and_unref(read_slices);
 
-  tcp->read_slice = gpr_slice_malloc(8192);
+  tcp->read_slice = grpc_slice_malloc(8192);
 
-  buffer.len = (ULONG)GPR_SLICE_LENGTH(
+  buffer.len = (ULONG)GRPC_SLICE_LENGTH(
       tcp->read_slice);  // we know slice size fits in 32bit.
-  buffer.buf = (char *)GPR_SLICE_START_PTR(tcp->read_slice);
+  buffer.buf = (char *)GRPC_SLICE_START_PTR(tcp->read_slice);
 
   TCP_REF(tcp, "read");
 
@@ -277,7 +277,7 @@
 
 /* Initiates a write. */
 static void win_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                      gpr_slice_buffer *slices, grpc_closure *cb) {
+                      grpc_slice_buffer *slices, grpc_closure *cb) {
   grpc_tcp *tcp = (grpc_tcp *)ep;
   grpc_winsocket *socket = tcp->socket;
   grpc_winsocket_callback_info *info = &socket->write_info;
@@ -304,10 +304,10 @@
   }
 
   for (i = 0; i < tcp->write_slices->count; i++) {
-    len = GPR_SLICE_LENGTH(tcp->write_slices->slices[i]);
+    len = GRPC_SLICE_LENGTH(tcp->write_slices->slices[i]);
     GPR_ASSERT(len <= ULONG_MAX);
     buffers[i].len = (ULONG)len;
-    buffers[i].buf = (char *)GPR_SLICE_START_PTR(tcp->write_slices->slices[i]);
+    buffers[i].buf = (char *)GRPC_SLICE_START_PTR(tcp->write_slices->slices[i]);
   }
 
   /* First, let's try a synchronous, non-blocking write. */
diff --git a/src/core/lib/security/credentials/credentials.h b/src/core/lib/security/credentials/credentials.h
index 6fb5b5b..85b3bc5 100644
--- a/src/core/lib/security/credentials/credentials.h
+++ b/src/core/lib/security/credentials/credentials.h
@@ -141,8 +141,8 @@
 /* --- grpc_credentials_md. --- */
 
 typedef struct {
-  gpr_slice key;
-  gpr_slice value;
+  grpc_slice key;
+  grpc_slice value;
 } grpc_credentials_md;
 
 typedef struct {
@@ -157,7 +157,7 @@
 
 /* Will ref key and value. */
 void grpc_credentials_md_store_add(grpc_credentials_md_store *store,
-                                   gpr_slice key, gpr_slice value);
+                                   grpc_slice key, grpc_slice value);
 void grpc_credentials_md_store_add_cstrings(grpc_credentials_md_store *store,
                                             const char *key, const char *value);
 grpc_credentials_md_store *grpc_credentials_md_store_ref(
diff --git a/src/core/lib/security/credentials/credentials_metadata.c b/src/core/lib/security/credentials/credentials_metadata.c
index 6a352aa..e6cb567 100644
--- a/src/core/lib/security/credentials/credentials_metadata.c
+++ b/src/core/lib/security/credentials/credentials_metadata.c
@@ -59,11 +59,11 @@
 }
 
 void grpc_credentials_md_store_add(grpc_credentials_md_store *store,
-                                   gpr_slice key, gpr_slice value) {
+                                   grpc_slice key, grpc_slice value) {
   if (store == NULL) return;
   store_ensure_capacity(store);
-  store->entries[store->num_entries].key = gpr_slice_ref(key);
-  store->entries[store->num_entries].value = gpr_slice_ref(value);
+  store->entries[store->num_entries].key = grpc_slice_ref(key);
+  store->entries[store->num_entries].value = grpc_slice_ref(value);
   store->num_entries++;
 }
 
@@ -72,9 +72,9 @@
                                             const char *value) {
   if (store == NULL) return;
   store_ensure_capacity(store);
-  store->entries[store->num_entries].key = gpr_slice_from_copied_string(key);
+  store->entries[store->num_entries].key = grpc_slice_from_copied_string(key);
   store->entries[store->num_entries].value =
-      gpr_slice_from_copied_string(value);
+      grpc_slice_from_copied_string(value);
   store->num_entries++;
 }
 
@@ -91,8 +91,8 @@
     if (store->entries != NULL) {
       size_t i;
       for (i = 0; i < store->num_entries; i++) {
-        gpr_slice_unref(store->entries[i].key);
-        gpr_slice_unref(store->entries[i].value);
+        grpc_slice_unref(store->entries[i].key);
+        grpc_slice_unref(store->entries[i].value);
       }
       gpr_free(store->entries);
     }
diff --git a/src/core/lib/security/credentials/google_default/google_default_credentials.c b/src/core/lib/security/credentials/google_default/google_default_credentials.c
index cb5ba55..afe0e3d 100644
--- a/src/core/lib/security/credentials/google_default/google_default_credentials.c
+++ b/src/core/lib/security/credentials/google_default/google_default_credentials.c
@@ -45,6 +45,7 @@
 #include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/security/credentials/jwt/jwt_credentials.h"
 #include "src/core/lib/security/credentials/oauth2/oauth2_credentials.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/env.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/surface/api_trace.h"
@@ -174,7 +175,7 @@
   grpc_auth_json_key key;
   grpc_auth_refresh_token token;
   grpc_call_credentials *result = NULL;
-  gpr_slice creds_data = gpr_empty_slice();
+  grpc_slice creds_data = gpr_empty_slice();
   grpc_error *error = GRPC_ERROR_NONE;
   if (creds_path == NULL) {
     error = GRPC_ERROR_CREATE("creds_path unset");
@@ -185,9 +186,9 @@
     goto end;
   }
   json = grpc_json_parse_string_with_len(
-      (char *)GPR_SLICE_START_PTR(creds_data), GPR_SLICE_LENGTH(creds_data));
+      (char *)GRPC_SLICE_START_PTR(creds_data), GRPC_SLICE_LENGTH(creds_data));
   if (json == NULL) {
-    char *dump = gpr_dump_slice(creds_data, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+    char *dump = grpc_dump_slice(creds_data, GPR_DUMP_HEX | GPR_DUMP_ASCII);
     error = grpc_error_set_str(GRPC_ERROR_CREATE("Failed to parse JSON"),
                                GRPC_ERROR_STR_RAW_BYTES, dump);
     gpr_free(dump);
@@ -224,7 +225,7 @@
 end:
   GPR_ASSERT((result == NULL) + (error == GRPC_ERROR_NONE) == 1);
   if (creds_path != NULL) gpr_free(creds_path);
-  gpr_slice_unref(creds_data);
+  grpc_slice_unref(creds_data);
   if (json != NULL) grpc_json_destroy(json);
   *creds = result;
   return error;
diff --git a/src/core/lib/security/credentials/jwt/json_token.h b/src/core/lib/security/credentials/jwt/json_token.h
index 07fc5bf..c13eb55 100644
--- a/src/core/lib/security/credentials/jwt/json_token.h
+++ b/src/core/lib/security/credentials/jwt/json_token.h
@@ -34,7 +34,7 @@
 #ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JSON_TOKEN_H
 #define GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JSON_TOKEN_H
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include <openssl/rsa.h>
 
 #include "src/core/lib/json/json.h"
diff --git a/src/core/lib/security/credentials/jwt/jwt_verifier.c b/src/core/lib/security/credentials/jwt/jwt_verifier.c
index 43eb642..42bd89d 100644
--- a/src/core/lib/security/credentials/jwt/jwt_verifier.c
+++ b/src/core/lib/security/credentials/jwt/jwt_verifier.c
@@ -85,18 +85,18 @@
 }
 
 static grpc_json *parse_json_part_from_jwt(const char *str, size_t len,
-                                           gpr_slice *buffer) {
+                                           grpc_slice *buffer) {
   grpc_json *json;
 
   *buffer = grpc_base64_decode_with_len(str, len, 1);
-  if (GPR_SLICE_IS_EMPTY(*buffer)) {
+  if (GRPC_SLICE_IS_EMPTY(*buffer)) {
     gpr_log(GPR_ERROR, "Invalid base64.");
     return NULL;
   }
-  json = grpc_json_parse_string_with_len((char *)GPR_SLICE_START_PTR(*buffer),
-                                         GPR_SLICE_LENGTH(*buffer));
+  json = grpc_json_parse_string_with_len((char *)GRPC_SLICE_START_PTR(*buffer),
+                                         GRPC_SLICE_LENGTH(*buffer));
   if (json == NULL) {
-    gpr_slice_unref(*buffer);
+    grpc_slice_unref(*buffer);
     gpr_log(GPR_ERROR, "JSON parsing error.");
   }
   return json;
@@ -129,16 +129,16 @@
   const char *kid;
   const char *typ;
   /* TODO(jboeuf): Add others as needed (jku, jwk, x5u, x5c and so on...). */
-  gpr_slice buffer;
+  grpc_slice buffer;
 } jose_header;
 
 static void jose_header_destroy(jose_header *h) {
-  gpr_slice_unref(h->buffer);
+  grpc_slice_unref(h->buffer);
   gpr_free(h);
 }
 
 /* Takes ownership of json and buffer. */
-static jose_header *jose_header_from_json(grpc_json *json, gpr_slice buffer) {
+static jose_header *jose_header_from_json(grpc_json *json, grpc_slice buffer) {
   grpc_json *cur;
   jose_header *h = gpr_malloc(sizeof(jose_header));
   memset(h, 0, sizeof(jose_header));
@@ -190,12 +190,12 @@
   gpr_timespec nbf;
 
   grpc_json *json;
-  gpr_slice buffer;
+  grpc_slice buffer;
 };
 
 void grpc_jwt_claims_destroy(grpc_jwt_claims *claims) {
   grpc_json_destroy(claims->json);
-  gpr_slice_unref(claims->buffer);
+  grpc_slice_unref(claims->buffer);
   gpr_free(claims);
 }
 
@@ -240,7 +240,7 @@
 }
 
 /* Takes ownership of json and buffer even in case of failure. */
-grpc_jwt_claims *grpc_jwt_claims_from_json(grpc_json *json, gpr_slice buffer) {
+grpc_jwt_claims *grpc_jwt_claims_from_json(grpc_json *json, grpc_slice buffer) {
   grpc_json *cur;
   grpc_jwt_claims *claims = gpr_malloc(sizeof(grpc_jwt_claims));
   memset(claims, 0, sizeof(grpc_jwt_claims));
@@ -333,8 +333,8 @@
   jose_header *header;
   grpc_jwt_claims *claims;
   char *audience;
-  gpr_slice signature;
-  gpr_slice signed_data;
+  grpc_slice signature;
+  grpc_slice signed_data;
   void *user_data;
   grpc_jwt_verification_done_cb user_cb;
   grpc_http_response responses[HTTP_RESPONSE_COUNT];
@@ -343,7 +343,7 @@
 /* Takes ownership of the header, claims and signature. */
 static verifier_cb_ctx *verifier_cb_ctx_create(
     grpc_jwt_verifier *verifier, grpc_pollset *pollset, jose_header *header,
-    grpc_jwt_claims *claims, const char *audience, gpr_slice signature,
+    grpc_jwt_claims *claims, const char *audience, grpc_slice signature,
     const char *signed_jwt, size_t signed_jwt_len, void *user_data,
     grpc_jwt_verification_done_cb cb) {
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
@@ -355,7 +355,7 @@
   ctx->audience = gpr_strdup(audience);
   ctx->claims = claims;
   ctx->signature = signature;
-  ctx->signed_data = gpr_slice_from_copied_buffer(signed_jwt, signed_jwt_len);
+  ctx->signed_data = grpc_slice_from_copied_buffer(signed_jwt, signed_jwt_len);
   ctx->user_data = user_data;
   ctx->user_cb = cb;
   grpc_exec_ctx_finish(&exec_ctx);
@@ -365,8 +365,8 @@
 void verifier_cb_ctx_destroy(verifier_cb_ctx *ctx) {
   if (ctx->audience != NULL) gpr_free(ctx->audience);
   if (ctx->claims != NULL) grpc_jwt_claims_destroy(ctx->claims);
-  gpr_slice_unref(ctx->signature);
-  gpr_slice_unref(ctx->signed_data);
+  grpc_slice_unref(ctx->signature);
+  grpc_slice_unref(ctx->signed_data);
   jose_header_destroy(ctx->header);
   for (size_t i = 0; i < HTTP_RESPONSE_COUNT; i++) {
     grpc_http_response_destroy(&ctx->responses[i]);
@@ -449,17 +449,17 @@
 
 static BIGNUM *bignum_from_base64(const char *b64) {
   BIGNUM *result = NULL;
-  gpr_slice bin;
+  grpc_slice bin;
 
   if (b64 == NULL) return NULL;
   bin = grpc_base64_decode(b64, 1);
-  if (GPR_SLICE_IS_EMPTY(bin)) {
+  if (GRPC_SLICE_IS_EMPTY(bin)) {
     gpr_log(GPR_ERROR, "Invalid base64 for big num.");
     return NULL;
   }
-  result = BN_bin2bn(GPR_SLICE_START_PTR(bin),
-                     TSI_SIZE_AS_SIZE(GPR_SLICE_LENGTH(bin)), NULL);
-  gpr_slice_unref(bin);
+  result = BN_bin2bn(GRPC_SLICE_START_PTR(bin),
+                     TSI_SIZE_AS_SIZE(GRPC_SLICE_LENGTH(bin)), NULL);
+  grpc_slice_unref(bin);
   return result;
 }
 
@@ -553,7 +553,7 @@
 }
 
 static int verify_jwt_signature(EVP_PKEY *key, const char *alg,
-                                gpr_slice signature, gpr_slice signed_data) {
+                                grpc_slice signature, grpc_slice signed_data) {
   EVP_MD_CTX *md_ctx = EVP_MD_CTX_create();
   const EVP_MD *md = evp_md_from_alg(alg);
   int result = 0;
@@ -567,13 +567,13 @@
     gpr_log(GPR_ERROR, "EVP_DigestVerifyInit failed.");
     goto end;
   }
-  if (EVP_DigestVerifyUpdate(md_ctx, GPR_SLICE_START_PTR(signed_data),
-                             GPR_SLICE_LENGTH(signed_data)) != 1) {
+  if (EVP_DigestVerifyUpdate(md_ctx, GRPC_SLICE_START_PTR(signed_data),
+                             GRPC_SLICE_LENGTH(signed_data)) != 1) {
     gpr_log(GPR_ERROR, "EVP_DigestVerifyUpdate failed.");
     goto end;
   }
-  if (EVP_DigestVerifyFinal(md_ctx, GPR_SLICE_START_PTR(signature),
-                            GPR_SLICE_LENGTH(signature)) != 1) {
+  if (EVP_DigestVerifyFinal(md_ctx, GRPC_SLICE_START_PTR(signature),
+                            GRPC_SLICE_LENGTH(signature)) != 1) {
     gpr_log(GPR_ERROR, "JWT signature verification failed.");
     goto end;
   }
@@ -799,9 +799,9 @@
   grpc_json *json;
   jose_header *header = NULL;
   grpc_jwt_claims *claims = NULL;
-  gpr_slice header_buffer;
-  gpr_slice claims_buffer;
-  gpr_slice signature;
+  grpc_slice header_buffer;
+  grpc_slice claims_buffer;
+  grpc_slice signature;
   size_t signed_jwt_len;
   const char *cur = jwt;
 
@@ -824,7 +824,7 @@
   signed_jwt_len = (size_t)(dot - jwt);
   cur = dot + 1;
   signature = grpc_base64_decode(cur, 1);
-  if (GPR_SLICE_IS_EMPTY(signature)) goto error;
+  if (GRPC_SLICE_IS_EMPTY(signature)) goto error;
   retrieve_key_and_verify(
       exec_ctx,
       verifier_cb_ctx_create(verifier, pollset, header, claims, audience,
diff --git a/src/core/lib/security/credentials/jwt/jwt_verifier.h b/src/core/lib/security/credentials/jwt/jwt_verifier.h
index b0f6d1c..f09f9d5 100644
--- a/src/core/lib/security/credentials/jwt/jwt_verifier.h
+++ b/src/core/lib/security/credentials/jwt/jwt_verifier.h
@@ -37,7 +37,7 @@
 #include "src/core/lib/iomgr/pollset.h"
 #include "src/core/lib/json/json.h"
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include <grpc/support/time.h>
 
 /* --- Constants. --- */
@@ -129,7 +129,7 @@
 
 /* --- TESTING ONLY exposed functions. --- */
 
-grpc_jwt_claims *grpc_jwt_claims_from_json(grpc_json *json, gpr_slice buffer);
+grpc_jwt_claims *grpc_jwt_claims_from_json(grpc_json *json, grpc_slice buffer);
 grpc_jwt_verifier_status grpc_jwt_claims_check(const grpc_jwt_claims *claims,
                                                const char *audience);
 
diff --git a/src/core/lib/security/credentials/plugin/plugin_credentials.c b/src/core/lib/security/credentials/plugin/plugin_credentials.c
index 905de37..61c1086 100644
--- a/src/core/lib/security/credentials/plugin/plugin_credentials.c
+++ b/src/core/lib/security/credentials/plugin/plugin_credentials.c
@@ -93,15 +93,15 @@
     } else if (num_md > 0) {
       md_array = gpr_malloc(num_md * sizeof(grpc_credentials_md));
       for (i = 0; i < num_md; i++) {
-        md_array[i].key = gpr_slice_from_copied_string(md[i].key);
+        md_array[i].key = grpc_slice_from_copied_string(md[i].key);
         md_array[i].value =
-            gpr_slice_from_copied_buffer(md[i].value, md[i].value_length);
+            grpc_slice_from_copied_buffer(md[i].value, md[i].value_length);
       }
       r->cb(&exec_ctx, r->user_data, md_array, num_md, GRPC_CREDENTIALS_OK,
             NULL);
       for (i = 0; i < num_md; i++) {
-        gpr_slice_unref(md_array[i].key);
-        gpr_slice_unref(md_array[i].value);
+        grpc_slice_unref(md_array[i].key);
+        grpc_slice_unref(md_array[i].value);
       }
       gpr_free(md_array);
     }
diff --git a/src/core/lib/security/transport/client_auth_filter.c b/src/core/lib/security/transport/client_auth_filter.c
index b366d14..cd4769e 100644
--- a/src/core/lib/security/transport/client_auth_filter.c
+++ b/src/core/lib/security/transport/client_auth_filter.c
@@ -92,7 +92,7 @@
                             grpc_status_code status, const char *error_msg) {
   call_data *calld = elem->call_data;
   gpr_log(GPR_ERROR, "Client side authentication failure: %s", error_msg);
-  gpr_slice error_slice = gpr_slice_from_copied_string(error_msg);
+  grpc_slice error_slice = grpc_slice_from_copied_string(error_msg);
   grpc_transport_stream_op_add_close(&calld->op, status, &error_slice);
   grpc_call_next_op(exec_ctx, elem, &calld->op);
 }
@@ -121,8 +121,8 @@
   for (i = 0; i < num_md; i++) {
     grpc_metadata_batch_add_tail(
         mdb, &calld->md_links[i],
-        grpc_mdelem_from_slices(gpr_slice_ref(md_elems[i].key),
-                                gpr_slice_ref(md_elems[i].value)));
+        grpc_mdelem_from_slices(grpc_slice_ref(md_elems[i].key),
+                                grpc_slice_ref(md_elems[i].value)));
   }
   grpc_call_next_op(exec_ctx, elem, op);
 }
diff --git a/src/core/lib/security/transport/handshake.c b/src/core/lib/security/transport/handshake.c
index fbeec31..01e7fab 100644
--- a/src/core/lib/security/transport/handshake.c
+++ b/src/core/lib/security/transport/handshake.c
@@ -36,9 +36,9 @@
 #include <stdbool.h>
 #include <string.h>
 
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice_buffer.h>
 #include "src/core/lib/iomgr/timer.h"
 #include "src/core/lib/security/context/security_context.h"
 #include "src/core/lib/security/transport/secure_endpoint.h"
@@ -54,9 +54,9 @@
   size_t handshake_buffer_size;
   grpc_endpoint *wrapped_endpoint;
   grpc_endpoint *secure_endpoint;
-  gpr_slice_buffer left_overs;
-  gpr_slice_buffer incoming;
-  gpr_slice_buffer outgoing;
+  grpc_slice_buffer left_overs;
+  grpc_slice_buffer incoming;
+  grpc_slice_buffer outgoing;
   grpc_security_handshake_done_cb cb;
   void *user_data;
   grpc_closure on_handshake_data_sent_to_peer;
@@ -104,9 +104,9 @@
   if (gpr_unref(&h->refs)) {
     if (h->handshaker != NULL) tsi_handshaker_destroy(h->handshaker);
     if (h->handshake_buffer != NULL) gpr_free(h->handshake_buffer);
-    gpr_slice_buffer_destroy(&h->left_overs);
-    gpr_slice_buffer_destroy(&h->outgoing);
-    gpr_slice_buffer_destroy(&h->incoming);
+    grpc_slice_buffer_destroy(&h->left_overs);
+    grpc_slice_buffer_destroy(&h->outgoing);
+    grpc_slice_buffer_destroy(&h->incoming);
     GRPC_AUTH_CONTEXT_UNREF(h->auth_context, "handshake");
     GRPC_SECURITY_CONNECTOR_UNREF(h->connector, "handshake");
     gpr_free(h);
@@ -190,7 +190,7 @@
                                          grpc_security_handshake *h) {
   size_t offset = 0;
   tsi_result result = TSI_OK;
-  gpr_slice to_send;
+  grpc_slice to_send;
 
   do {
     size_t to_send_size = h->handshake_buffer_size - offset;
@@ -212,9 +212,9 @@
   }
 
   to_send =
-      gpr_slice_from_copied_buffer((const char *)h->handshake_buffer, offset);
-  gpr_slice_buffer_reset_and_unref(&h->outgoing);
-  gpr_slice_buffer_add(&h->outgoing, to_send);
+      grpc_slice_from_copied_buffer((const char *)h->handshake_buffer, offset);
+  grpc_slice_buffer_reset_and_unref(&h->outgoing);
+  grpc_slice_buffer_add(&h->outgoing, to_send);
   /* TODO(klempner,jboeuf): This should probably use the client setup
      deadline */
   grpc_endpoint_write(exec_ctx, h->wrapped_endpoint, &h->outgoing,
@@ -239,9 +239,9 @@
   }
 
   for (i = 0; i < h->incoming.count; i++) {
-    consumed_slice_size = GPR_SLICE_LENGTH(h->incoming.slices[i]);
+    consumed_slice_size = GRPC_SLICE_LENGTH(h->incoming.slices[i]);
     result = tsi_handshaker_process_bytes_from_peer(
-        h->handshaker, GPR_SLICE_START_PTR(h->incoming.slices[i]),
+        h->handshaker, GRPC_SLICE_START_PTR(h->incoming.slices[i]),
         &consumed_slice_size);
     if (!tsi_handshaker_is_in_progress(h->handshaker)) break;
   }
@@ -267,7 +267,7 @@
 
   /* Handshake is done and successful this point. */
   has_left_overs_in_current_slice =
-      (consumed_slice_size < GPR_SLICE_LENGTH(h->incoming.slices[i]));
+      (consumed_slice_size < GRPC_SLICE_LENGTH(h->incoming.slices[i]));
   num_left_overs =
       (has_left_overs_in_current_slice ? 1 : 0) + h->incoming.count - i - 1;
   if (num_left_overs == 0) {
@@ -277,13 +277,13 @@
 
   /* Put the leftovers in our buffer (ownership transfered). */
   if (has_left_overs_in_current_slice) {
-    gpr_slice_buffer_add(
+    grpc_slice_buffer_add(
         &h->left_overs,
-        gpr_slice_split_tail(&h->incoming.slices[i], consumed_slice_size));
-    gpr_slice_unref(
+        grpc_slice_split_tail(&h->incoming.slices[i], consumed_slice_size));
+    grpc_slice_unref(
         h->incoming.slices[i]); /* split_tail above increments refcount. */
   }
-  gpr_slice_buffer_addn(
+  grpc_slice_buffer_addn(
       &h->left_overs, &h->incoming.slices[i + 1],
       num_left_overs - (size_t)has_left_overs_in_current_slice);
   check_peer(exec_ctx, h);
@@ -325,7 +325,7 @@
 void grpc_do_security_handshake(
     grpc_exec_ctx *exec_ctx, tsi_handshaker *handshaker,
     grpc_security_connector *connector, bool is_client_side,
-    grpc_endpoint *nonsecure_endpoint, gpr_slice_buffer *read_buffer,
+    grpc_endpoint *nonsecure_endpoint, grpc_slice_buffer *read_buffer,
     gpr_timespec deadline, grpc_security_handshake_done_cb cb,
     void *user_data) {
   grpc_security_connector_handshake_list *handshake_node;
@@ -344,11 +344,11 @@
                     on_handshake_data_sent_to_peer, h);
   grpc_closure_init(&h->on_handshake_data_received_from_peer,
                     on_handshake_data_received_from_peer, h);
-  gpr_slice_buffer_init(&h->left_overs);
-  gpr_slice_buffer_init(&h->outgoing);
-  gpr_slice_buffer_init(&h->incoming);
+  grpc_slice_buffer_init(&h->left_overs);
+  grpc_slice_buffer_init(&h->outgoing);
+  grpc_slice_buffer_init(&h->incoming);
   if (read_buffer != NULL) {
-    gpr_slice_buffer_move_into(read_buffer, &h->incoming);
+    grpc_slice_buffer_move_into(read_buffer, &h->incoming);
     gpr_free(read_buffer);
   }
   if (!is_client_side) {
diff --git a/src/core/lib/security/transport/handshake.h b/src/core/lib/security/transport/handshake.h
index 53092f5..f894540 100644
--- a/src/core/lib/security/transport/handshake.h
+++ b/src/core/lib/security/transport/handshake.h
@@ -42,7 +42,7 @@
 void grpc_do_security_handshake(
     grpc_exec_ctx *exec_ctx, tsi_handshaker *handshaker,
     grpc_security_connector *connector, bool is_client_side,
-    grpc_endpoint *nonsecure_endpoint, gpr_slice_buffer *read_buffer,
+    grpc_endpoint *nonsecure_endpoint, grpc_slice_buffer *read_buffer,
     gpr_timespec deadline, grpc_security_handshake_done_cb cb, void *user_data);
 
 void grpc_security_handshake_shutdown(grpc_exec_ctx *exec_ctx, void *handshake);
diff --git a/src/core/lib/security/transport/secure_endpoint.c b/src/core/lib/security/transport/secure_endpoint.c
index 3924997..fba3314 100644
--- a/src/core/lib/security/transport/secure_endpoint.c
+++ b/src/core/lib/security/transport/secure_endpoint.c
@@ -32,14 +32,15 @@
  */
 
 #include "src/core/lib/security/transport/secure_endpoint.h"
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/sync.h>
 #include "src/core/lib/debug/trace.h"
 #include "src/core/lib/profiling/timers.h"
 #include "src/core/lib/security/transport/tsi_error.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/tsi/transport_security_interface.h"
 
@@ -54,15 +55,15 @@
   grpc_closure *read_cb;
   grpc_closure *write_cb;
   grpc_closure on_read;
-  gpr_slice_buffer *read_buffer;
-  gpr_slice_buffer source_buffer;
+  grpc_slice_buffer *read_buffer;
+  grpc_slice_buffer source_buffer;
   /* saved handshaker leftover data to unprotect. */
-  gpr_slice_buffer leftover_bytes;
+  grpc_slice_buffer leftover_bytes;
   /* buffers for read and write */
-  gpr_slice read_staging_buffer;
+  grpc_slice read_staging_buffer;
 
-  gpr_slice write_staging_buffer;
-  gpr_slice_buffer output_buffer;
+  grpc_slice write_staging_buffer;
+  grpc_slice_buffer output_buffer;
 
   gpr_refcount ref;
 } secure_endpoint;
@@ -73,11 +74,11 @@
   secure_endpoint *ep = secure_ep;
   grpc_endpoint_destroy(exec_ctx, ep->wrapped_ep);
   tsi_frame_protector_destroy(ep->protector);
-  gpr_slice_buffer_destroy(&ep->leftover_bytes);
-  gpr_slice_unref(ep->read_staging_buffer);
-  gpr_slice_unref(ep->write_staging_buffer);
-  gpr_slice_buffer_destroy(&ep->output_buffer);
-  gpr_slice_buffer_destroy(&ep->source_buffer);
+  grpc_slice_buffer_destroy(&ep->leftover_bytes);
+  grpc_slice_unref(ep->read_staging_buffer);
+  grpc_slice_unref(ep->write_staging_buffer);
+  grpc_slice_buffer_destroy(&ep->output_buffer);
+  grpc_slice_buffer_destroy(&ep->source_buffer);
   gpr_mu_destroy(&ep->protector_mu);
   gpr_free(ep);
 }
@@ -121,10 +122,10 @@
 
 static void flush_read_staging_buffer(secure_endpoint *ep, uint8_t **cur,
                                       uint8_t **end) {
-  gpr_slice_buffer_add(ep->read_buffer, ep->read_staging_buffer);
-  ep->read_staging_buffer = gpr_slice_malloc(STAGING_BUFFER_SIZE);
-  *cur = GPR_SLICE_START_PTR(ep->read_staging_buffer);
-  *end = GPR_SLICE_END_PTR(ep->read_staging_buffer);
+  grpc_slice_buffer_add(ep->read_buffer, ep->read_staging_buffer);
+  ep->read_staging_buffer = grpc_slice_malloc(STAGING_BUFFER_SIZE);
+  *cur = GRPC_SLICE_START_PTR(ep->read_staging_buffer);
+  *end = GRPC_SLICE_END_PTR(ep->read_staging_buffer);
 }
 
 static void call_read_cb(grpc_exec_ctx *exec_ctx, secure_endpoint *ep,
@@ -132,8 +133,8 @@
   if (grpc_trace_secure_endpoint) {
     size_t i;
     for (i = 0; i < ep->read_buffer->count; i++) {
-      char *data = gpr_dump_slice(ep->read_buffer->slices[i],
-                                  GPR_DUMP_HEX | GPR_DUMP_ASCII);
+      char *data = grpc_dump_slice(ep->read_buffer->slices[i],
+                                   GPR_DUMP_HEX | GPR_DUMP_ASCII);
       gpr_log(GPR_DEBUG, "READ %p: %s", ep, data);
       gpr_free(data);
     }
@@ -149,11 +150,11 @@
   uint8_t keep_looping = 0;
   tsi_result result = TSI_OK;
   secure_endpoint *ep = (secure_endpoint *)user_data;
-  uint8_t *cur = GPR_SLICE_START_PTR(ep->read_staging_buffer);
-  uint8_t *end = GPR_SLICE_END_PTR(ep->read_staging_buffer);
+  uint8_t *cur = GRPC_SLICE_START_PTR(ep->read_staging_buffer);
+  uint8_t *end = GRPC_SLICE_END_PTR(ep->read_staging_buffer);
 
   if (error != GRPC_ERROR_NONE) {
-    gpr_slice_buffer_reset_and_unref(ep->read_buffer);
+    grpc_slice_buffer_reset_and_unref(ep->read_buffer);
     call_read_cb(exec_ctx, ep, GRPC_ERROR_CREATE_REFERENCING(
                                    "Secure read failed", &error, 1));
     return;
@@ -161,9 +162,9 @@
 
   /* TODO(yangg) check error, maybe bail out early */
   for (i = 0; i < ep->source_buffer.count; i++) {
-    gpr_slice encrypted = ep->source_buffer.slices[i];
-    uint8_t *message_bytes = GPR_SLICE_START_PTR(encrypted);
-    size_t message_size = GPR_SLICE_LENGTH(encrypted);
+    grpc_slice encrypted = ep->source_buffer.slices[i];
+    uint8_t *message_bytes = GRPC_SLICE_START_PTR(encrypted);
+    size_t message_size = GRPC_SLICE_LENGTH(encrypted);
 
     while (message_size > 0 || keep_looping) {
       size_t unprotected_buffer_size_written = (size_t)(end - cur);
@@ -198,20 +199,20 @@
     if (result != TSI_OK) break;
   }
 
-  if (cur != GPR_SLICE_START_PTR(ep->read_staging_buffer)) {
-    gpr_slice_buffer_add(
+  if (cur != GRPC_SLICE_START_PTR(ep->read_staging_buffer)) {
+    grpc_slice_buffer_add(
         ep->read_buffer,
-        gpr_slice_split_head(
+        grpc_slice_split_head(
             &ep->read_staging_buffer,
-            (size_t)(cur - GPR_SLICE_START_PTR(ep->read_staging_buffer))));
+            (size_t)(cur - GRPC_SLICE_START_PTR(ep->read_staging_buffer))));
   }
 
   /* TODO(yangg) experiment with moving this block after read_cb to see if it
      helps latency */
-  gpr_slice_buffer_reset_and_unref(&ep->source_buffer);
+  grpc_slice_buffer_reset_and_unref(&ep->source_buffer);
 
   if (result != TSI_OK) {
-    gpr_slice_buffer_reset_and_unref(ep->read_buffer);
+    grpc_slice_buffer_reset_and_unref(ep->read_buffer);
     call_read_cb(exec_ctx, ep, grpc_set_tsi_error_result(
                                    GRPC_ERROR_CREATE("Unwrap failed"), result));
     return;
@@ -221,15 +222,15 @@
 }
 
 static void endpoint_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *secure_ep,
-                          gpr_slice_buffer *slices, grpc_closure *cb) {
+                          grpc_slice_buffer *slices, grpc_closure *cb) {
   secure_endpoint *ep = (secure_endpoint *)secure_ep;
   ep->read_cb = cb;
   ep->read_buffer = slices;
-  gpr_slice_buffer_reset_and_unref(ep->read_buffer);
+  grpc_slice_buffer_reset_and_unref(ep->read_buffer);
 
   SECURE_ENDPOINT_REF(ep, "read");
   if (ep->leftover_bytes.count) {
-    gpr_slice_buffer_swap(&ep->leftover_bytes, &ep->source_buffer);
+    grpc_slice_buffer_swap(&ep->leftover_bytes, &ep->source_buffer);
     GPR_ASSERT(ep->leftover_bytes.count == 0);
     on_read(exec_ctx, ep, GRPC_ERROR_NONE);
     return;
@@ -241,37 +242,37 @@
 
 static void flush_write_staging_buffer(secure_endpoint *ep, uint8_t **cur,
                                        uint8_t **end) {
-  gpr_slice_buffer_add(&ep->output_buffer, ep->write_staging_buffer);
-  ep->write_staging_buffer = gpr_slice_malloc(STAGING_BUFFER_SIZE);
-  *cur = GPR_SLICE_START_PTR(ep->write_staging_buffer);
-  *end = GPR_SLICE_END_PTR(ep->write_staging_buffer);
+  grpc_slice_buffer_add(&ep->output_buffer, ep->write_staging_buffer);
+  ep->write_staging_buffer = grpc_slice_malloc(STAGING_BUFFER_SIZE);
+  *cur = GRPC_SLICE_START_PTR(ep->write_staging_buffer);
+  *end = GRPC_SLICE_END_PTR(ep->write_staging_buffer);
 }
 
 static void endpoint_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *secure_ep,
-                           gpr_slice_buffer *slices, grpc_closure *cb) {
+                           grpc_slice_buffer *slices, grpc_closure *cb) {
   GPR_TIMER_BEGIN("secure_endpoint.endpoint_write", 0);
 
   unsigned i;
   tsi_result result = TSI_OK;
   secure_endpoint *ep = (secure_endpoint *)secure_ep;
-  uint8_t *cur = GPR_SLICE_START_PTR(ep->write_staging_buffer);
-  uint8_t *end = GPR_SLICE_END_PTR(ep->write_staging_buffer);
+  uint8_t *cur = GRPC_SLICE_START_PTR(ep->write_staging_buffer);
+  uint8_t *end = GRPC_SLICE_END_PTR(ep->write_staging_buffer);
 
-  gpr_slice_buffer_reset_and_unref(&ep->output_buffer);
+  grpc_slice_buffer_reset_and_unref(&ep->output_buffer);
 
   if (grpc_trace_secure_endpoint) {
     for (i = 0; i < slices->count; i++) {
       char *data =
-          gpr_dump_slice(slices->slices[i], GPR_DUMP_HEX | GPR_DUMP_ASCII);
+          grpc_dump_slice(slices->slices[i], GPR_DUMP_HEX | GPR_DUMP_ASCII);
       gpr_log(GPR_DEBUG, "WRITE %p: %s", ep, data);
       gpr_free(data);
     }
   }
 
   for (i = 0; i < slices->count; i++) {
-    gpr_slice plain = slices->slices[i];
-    uint8_t *message_bytes = GPR_SLICE_START_PTR(plain);
-    size_t message_size = GPR_SLICE_LENGTH(plain);
+    grpc_slice plain = slices->slices[i];
+    uint8_t *message_bytes = GRPC_SLICE_START_PTR(plain);
+    size_t message_size = GRPC_SLICE_LENGTH(plain);
     while (message_size > 0) {
       size_t protected_buffer_size_to_send = (size_t)(end - cur);
       size_t processed_message_size = message_size;
@@ -310,18 +311,18 @@
         flush_write_staging_buffer(ep, &cur, &end);
       }
     } while (still_pending_size > 0);
-    if (cur != GPR_SLICE_START_PTR(ep->write_staging_buffer)) {
-      gpr_slice_buffer_add(
+    if (cur != GRPC_SLICE_START_PTR(ep->write_staging_buffer)) {
+      grpc_slice_buffer_add(
           &ep->output_buffer,
-          gpr_slice_split_head(
+          grpc_slice_split_head(
               &ep->write_staging_buffer,
-              (size_t)(cur - GPR_SLICE_START_PTR(ep->write_staging_buffer))));
+              (size_t)(cur - GRPC_SLICE_START_PTR(ep->write_staging_buffer))));
     }
   }
 
   if (result != TSI_OK) {
     /* TODO(yangg) do different things according to the error type? */
-    gpr_slice_buffer_reset_and_unref(&ep->output_buffer);
+    grpc_slice_buffer_reset_and_unref(&ep->output_buffer);
     grpc_exec_ctx_sched(
         exec_ctx, cb,
         grpc_set_tsi_error_result(GRPC_ERROR_CREATE("Wrap failed"), result),
@@ -388,21 +389,21 @@
 
 grpc_endpoint *grpc_secure_endpoint_create(
     struct tsi_frame_protector *protector, grpc_endpoint *transport,
-    gpr_slice *leftover_slices, size_t leftover_nslices) {
+    grpc_slice *leftover_slices, size_t leftover_nslices) {
   size_t i;
   secure_endpoint *ep = (secure_endpoint *)gpr_malloc(sizeof(secure_endpoint));
   ep->base.vtable = &vtable;
   ep->wrapped_ep = transport;
   ep->protector = protector;
-  gpr_slice_buffer_init(&ep->leftover_bytes);
+  grpc_slice_buffer_init(&ep->leftover_bytes);
   for (i = 0; i < leftover_nslices; i++) {
-    gpr_slice_buffer_add(&ep->leftover_bytes,
-                         gpr_slice_ref(leftover_slices[i]));
+    grpc_slice_buffer_add(&ep->leftover_bytes,
+                          grpc_slice_ref(leftover_slices[i]));
   }
-  ep->write_staging_buffer = gpr_slice_malloc(STAGING_BUFFER_SIZE);
-  ep->read_staging_buffer = gpr_slice_malloc(STAGING_BUFFER_SIZE);
-  gpr_slice_buffer_init(&ep->output_buffer);
-  gpr_slice_buffer_init(&ep->source_buffer);
+  ep->write_staging_buffer = grpc_slice_malloc(STAGING_BUFFER_SIZE);
+  ep->read_staging_buffer = grpc_slice_malloc(STAGING_BUFFER_SIZE);
+  grpc_slice_buffer_init(&ep->output_buffer);
+  grpc_slice_buffer_init(&ep->source_buffer);
   ep->read_buffer = NULL;
   grpc_closure_init(&ep->on_read, on_read, ep);
   gpr_mu_init(&ep->protector_mu);
diff --git a/src/core/lib/security/transport/secure_endpoint.h b/src/core/lib/security/transport/secure_endpoint.h
index d00075b..a61f40a 100644
--- a/src/core/lib/security/transport/secure_endpoint.h
+++ b/src/core/lib/security/transport/secure_endpoint.h
@@ -34,7 +34,7 @@
 #ifndef GRPC_CORE_LIB_SECURITY_TRANSPORT_SECURE_ENDPOINT_H
 #define GRPC_CORE_LIB_SECURITY_TRANSPORT_SECURE_ENDPOINT_H
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include "src/core/lib/iomgr/endpoint.h"
 
 struct tsi_frame_protector;
@@ -44,6 +44,6 @@
 /* Takes ownership of protector and to_wrap, and refs leftover_slices. */
 grpc_endpoint *grpc_secure_endpoint_create(
     struct tsi_frame_protector *protector, grpc_endpoint *to_wrap,
-    gpr_slice *leftover_slices, size_t leftover_nslices);
+    grpc_slice *leftover_slices, size_t leftover_nslices);
 
 #endif /* GRPC_CORE_LIB_SECURITY_TRANSPORT_SECURE_ENDPOINT_H */
diff --git a/src/core/lib/security/transport/security_connector.c b/src/core/lib/security/transport/security_connector.c
index ebf72a3..0fbd63a 100644
--- a/src/core/lib/security/transport/security_connector.c
+++ b/src/core/lib/security/transport/security_connector.c
@@ -36,10 +36,10 @@
 #include <stdbool.h>
 #include <string.h>
 
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/string_util.h>
 
 #include "src/core/ext/transport/chttp2/alpn/alpn.h"
@@ -127,7 +127,7 @@
 
 void grpc_channel_security_connector_do_handshake(
     grpc_exec_ctx *exec_ctx, grpc_channel_security_connector *sc,
-    grpc_endpoint *nonsecure_endpoint, gpr_slice_buffer *read_buffer,
+    grpc_endpoint *nonsecure_endpoint, grpc_slice_buffer *read_buffer,
     gpr_timespec deadline, grpc_security_handshake_done_cb cb,
     void *user_data) {
   if (sc == NULL || nonsecure_endpoint == NULL) {
@@ -142,7 +142,7 @@
 void grpc_server_security_connector_do_handshake(
     grpc_exec_ctx *exec_ctx, grpc_server_security_connector *sc,
     grpc_tcp_server_acceptor *acceptor, grpc_endpoint *nonsecure_endpoint,
-    gpr_slice_buffer *read_buffer, gpr_timespec deadline,
+    grpc_slice_buffer *read_buffer, gpr_timespec deadline,
     grpc_security_handshake_done_cb cb, void *user_data) {
   if (sc == NULL || nonsecure_endpoint == NULL) {
     gpr_free(read_buffer);
@@ -316,7 +316,7 @@
 static void fake_channel_do_handshake(grpc_exec_ctx *exec_ctx,
                                       grpc_channel_security_connector *sc,
                                       grpc_endpoint *nonsecure_endpoint,
-                                      gpr_slice_buffer *read_buffer,
+                                      grpc_slice_buffer *read_buffer,
                                       gpr_timespec deadline,
                                       grpc_security_handshake_done_cb cb,
                                       void *user_data) {
@@ -328,7 +328,7 @@
 static void fake_server_do_handshake(
     grpc_exec_ctx *exec_ctx, grpc_server_security_connector *sc,
     grpc_tcp_server_acceptor *acceptor, grpc_endpoint *nonsecure_endpoint,
-    gpr_slice_buffer *read_buffer, gpr_timespec deadline,
+    grpc_slice_buffer *read_buffer, gpr_timespec deadline,
     grpc_security_handshake_done_cb cb, void *user_data) {
   grpc_do_security_handshake(exec_ctx, tsi_create_fake_handshaker(0), &sc->base,
                              false, nonsecure_endpoint, read_buffer, deadline,
@@ -422,7 +422,7 @@
 static void ssl_channel_do_handshake(grpc_exec_ctx *exec_ctx,
                                      grpc_channel_security_connector *sc,
                                      grpc_endpoint *nonsecure_endpoint,
-                                     gpr_slice_buffer *read_buffer,
+                                     grpc_slice_buffer *read_buffer,
                                      gpr_timespec deadline,
                                      grpc_security_handshake_done_cb cb,
                                      void *user_data) {
@@ -447,7 +447,7 @@
 static void ssl_server_do_handshake(
     grpc_exec_ctx *exec_ctx, grpc_server_security_connector *sc,
     grpc_tcp_server_acceptor *acceptor, grpc_endpoint *nonsecure_endpoint,
-    gpr_slice_buffer *read_buffer, gpr_timespec deadline,
+    grpc_slice_buffer *read_buffer, gpr_timespec deadline,
     grpc_security_handshake_done_cb cb, void *user_data) {
   grpc_ssl_server_security_connector *c =
       (grpc_ssl_server_security_connector *)sc;
@@ -642,8 +642,8 @@
 static grpc_security_connector_vtable ssl_server_vtable = {
     ssl_server_destroy, ssl_server_check_peer};
 
-static gpr_slice compute_default_pem_root_certs_once(void) {
-  gpr_slice result = gpr_empty_slice();
+static grpc_slice compute_default_pem_root_certs_once(void) {
+  grpc_slice result = gpr_empty_slice();
 
   /* First try to load the roots from the environment. */
   char *default_root_certs_path =
@@ -656,17 +656,17 @@
 
   /* Try overridden roots if needed. */
   grpc_ssl_roots_override_result ovrd_res = GRPC_SSL_ROOTS_OVERRIDE_FAIL;
-  if (GPR_SLICE_IS_EMPTY(result) && ssl_roots_override_cb != NULL) {
+  if (GRPC_SLICE_IS_EMPTY(result) && ssl_roots_override_cb != NULL) {
     char *pem_root_certs = NULL;
     ovrd_res = ssl_roots_override_cb(&pem_root_certs);
     if (ovrd_res == GRPC_SSL_ROOTS_OVERRIDE_OK) {
       GPR_ASSERT(pem_root_certs != NULL);
-      result = gpr_slice_new(pem_root_certs, strlen(pem_root_certs), gpr_free);
+      result = grpc_slice_new(pem_root_certs, strlen(pem_root_certs), gpr_free);
     }
   }
 
   /* Fall back to installed certs if needed. */
-  if (GPR_SLICE_IS_EMPTY(result) &&
+  if (GRPC_SLICE_IS_EMPTY(result) &&
       ovrd_res != GRPC_SSL_ROOTS_OVERRIDE_FAIL_PERMANENTLY) {
     GRPC_LOG_IF_ERROR("load_file",
                       grpc_load_file(installed_roots_path, 0, &result));
@@ -674,13 +674,13 @@
   return result;
 }
 
-static gpr_slice default_pem_root_certs;
+static grpc_slice default_pem_root_certs;
 
 static void init_default_pem_root_certs(void) {
   default_pem_root_certs = compute_default_pem_root_certs_once();
 }
 
-gpr_slice grpc_get_default_ssl_roots_for_testing(void) {
+grpc_slice grpc_get_default_ssl_roots_for_testing(void) {
   return compute_default_pem_root_certs_once();
 }
 
@@ -714,8 +714,8 @@
      loading all the roots once for the lifetime of the process. */
   static gpr_once once = GPR_ONCE_INIT;
   gpr_once_init(&once, init_default_pem_root_certs);
-  *pem_root_certs = GPR_SLICE_START_PTR(default_pem_root_certs);
-  return GPR_SLICE_LENGTH(default_pem_root_certs);
+  *pem_root_certs = GRPC_SLICE_START_PTR(default_pem_root_certs);
+  return GRPC_SLICE_LENGTH(default_pem_root_certs);
 }
 
 grpc_security_status grpc_ssl_channel_security_connector_create(
diff --git a/src/core/lib/security/transport/security_connector.h b/src/core/lib/security/transport/security_connector.h
index 0b5b44b..dc02692 100644
--- a/src/core/lib/security/transport/security_connector.h
+++ b/src/core/lib/security/transport/security_connector.h
@@ -144,7 +144,7 @@
   void (*do_handshake)(grpc_exec_ctx *exec_ctx,
                        grpc_channel_security_connector *sc,
                        grpc_endpoint *nonsecure_endpoint,
-                       gpr_slice_buffer *read_buffer, gpr_timespec deadline,
+                       grpc_slice_buffer *read_buffer, gpr_timespec deadline,
                        grpc_security_handshake_done_cb cb, void *user_data);
 };
 
@@ -157,7 +157,7 @@
 /* Handshake. */
 void grpc_channel_security_connector_do_handshake(
     grpc_exec_ctx *exec_ctx, grpc_channel_security_connector *connector,
-    grpc_endpoint *nonsecure_endpoint, gpr_slice_buffer *read_buffer,
+    grpc_endpoint *nonsecure_endpoint, grpc_slice_buffer *read_buffer,
     gpr_timespec deadline, grpc_security_handshake_done_cb cb, void *user_data);
 
 /* --- server_security_connector object. ---
@@ -176,14 +176,14 @@
                        grpc_server_security_connector *sc,
                        grpc_tcp_server_acceptor *acceptor,
                        grpc_endpoint *nonsecure_endpoint,
-                       gpr_slice_buffer *read_buffer, gpr_timespec deadline,
+                       grpc_slice_buffer *read_buffer, gpr_timespec deadline,
                        grpc_security_handshake_done_cb cb, void *user_data);
 };
 
 void grpc_server_security_connector_do_handshake(
     grpc_exec_ctx *exec_ctx, grpc_server_security_connector *sc,
     grpc_tcp_server_acceptor *acceptor, grpc_endpoint *nonsecure_endpoint,
-    gpr_slice_buffer *read_buffer, gpr_timespec deadline,
+    grpc_slice_buffer *read_buffer, gpr_timespec deadline,
     grpc_security_handshake_done_cb cb, void *user_data);
 
 void grpc_server_security_connector_shutdown(
@@ -233,7 +233,7 @@
 size_t grpc_get_default_ssl_roots(const unsigned char **pem_root_certs);
 
 /* Exposed for TESTING ONLY!. */
-gpr_slice grpc_get_default_ssl_roots_for_testing(void);
+grpc_slice grpc_get_default_ssl_roots_for_testing(void);
 
 /* Config for ssl servers. */
 typedef struct {
diff --git a/src/core/lib/security/transport/server_auth_filter.c b/src/core/lib/security/transport/server_auth_filter.c
index b2c6815..dd465be 100644
--- a/src/core/lib/security/transport/server_auth_filter.c
+++ b/src/core/lib/security/transport/server_auth_filter.c
@@ -78,7 +78,7 @@
     usr_md = &result.metadata[result.count++];
     usr_md->key = grpc_mdstr_as_c_string(key);
     usr_md->value = grpc_mdstr_as_c_string(value);
-    usr_md->value_length = GPR_SLICE_LENGTH(value->slice);
+    usr_md->value_length = GRPC_SLICE_LENGTH(value->slice);
   }
   return result;
 }
@@ -92,14 +92,14 @@
     /* Maybe we could do a pointer comparison but we do not have any guarantee
        that the metadata processor used the same pointers for consumed_md in the
        callback. */
-    if (GPR_SLICE_LENGTH(md->key->slice) != strlen(consumed_md->key) ||
-        GPR_SLICE_LENGTH(md->value->slice) != consumed_md->value_length) {
+    if (GRPC_SLICE_LENGTH(md->key->slice) != strlen(consumed_md->key) ||
+        GRPC_SLICE_LENGTH(md->value->slice) != consumed_md->value_length) {
       continue;
     }
-    if (memcmp(GPR_SLICE_START_PTR(md->key->slice), consumed_md->key,
-               GPR_SLICE_LENGTH(md->key->slice)) == 0 &&
-        memcmp(GPR_SLICE_START_PTR(md->value->slice), consumed_md->value,
-               GPR_SLICE_LENGTH(md->value->slice)) == 0) {
+    if (memcmp(GRPC_SLICE_START_PTR(md->key->slice), consumed_md->key,
+               GRPC_SLICE_LENGTH(md->key->slice)) == 0 &&
+        memcmp(GRPC_SLICE_START_PTR(md->value->slice), consumed_md->value,
+               GRPC_SLICE_LENGTH(md->value->slice)) == 0) {
       return NULL; /* Delete. */
     }
   }
@@ -134,14 +134,14 @@
     grpc_metadata_array_destroy(&calld->md);
     grpc_exec_ctx_sched(&exec_ctx, calld->on_done_recv, GRPC_ERROR_NONE, NULL);
   } else {
-    gpr_slice message;
+    grpc_slice message;
     grpc_transport_stream_op *close_op = gpr_malloc(sizeof(*close_op));
     memset(close_op, 0, sizeof(*close_op));
     grpc_metadata_array_destroy(&calld->md);
     error_details = error_details != NULL
                         ? error_details
                         : "Authentication metadata processing failed.";
-    message = gpr_slice_from_copied_string(error_details);
+    message = grpc_slice_from_copied_string(error_details);
     calld->transport_op->send_initial_metadata = NULL;
     if (calld->transport_op->send_message != NULL) {
       grpc_byte_stream_destroy(&exec_ctx, calld->transport_op->send_message);
diff --git a/src/core/lib/security/util/b64.c b/src/core/lib/security/util/b64.c
index 9da42e4..4892e8e 100644
--- a/src/core/lib/security/util/b64.c
+++ b/src/core/lib/security/util/b64.c
@@ -120,7 +120,7 @@
   return result;
 }
 
-gpr_slice grpc_base64_decode(const char *b64, int url_safe) {
+grpc_slice grpc_base64_decode(const char *b64, int url_safe) {
   return grpc_base64_decode_with_len(b64, strlen(b64), url_safe);
 }
 
@@ -182,10 +182,10 @@
   return 1;
 }
 
-gpr_slice grpc_base64_decode_with_len(const char *b64, size_t b64_len,
-                                      int url_safe) {
-  gpr_slice result = gpr_slice_malloc(b64_len);
-  unsigned char *current = GPR_SLICE_START_PTR(result);
+grpc_slice grpc_base64_decode_with_len(const char *b64, size_t b64_len,
+                                       int url_safe) {
+  grpc_slice result = grpc_slice_malloc(b64_len);
+  unsigned char *current = GRPC_SLICE_START_PTR(result);
   size_t result_size = 0;
   unsigned char codes[4];
   size_t num_codes = 0;
@@ -224,10 +224,10 @@
       !decode_group(codes, num_codes, current, &result_size)) {
     goto fail;
   }
-  GPR_SLICE_SET_LENGTH(result, result_size);
+  GRPC_SLICE_SET_LENGTH(result, result_size);
   return result;
 
 fail:
-  gpr_slice_unref(result);
+  grpc_slice_unref(result);
   return gpr_empty_slice();
 }
diff --git a/src/core/lib/security/util/b64.h b/src/core/lib/security/util/b64.h
index 6908095..6ea0b53 100644
--- a/src/core/lib/security/util/b64.h
+++ b/src/core/lib/security/util/b64.h
@@ -34,7 +34,7 @@
 #ifndef GRPC_CORE_LIB_SECURITY_UTIL_B64_H
 #define GRPC_CORE_LIB_SECURITY_UTIL_B64_H
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 
 /* Encodes data using base64. It is the caller's responsability to free
    the returned char * using gpr_free. Returns NULL on NULL input. */
@@ -43,10 +43,10 @@
 
 /* Decodes data according to the base64 specification. Returns an empty
    slice in case of failure. */
-gpr_slice grpc_base64_decode(const char *b64, int url_safe);
+grpc_slice grpc_base64_decode(const char *b64, int url_safe);
 
 /* Same as above except that the length is provided by the caller. */
-gpr_slice grpc_base64_decode_with_len(const char *b64, size_t b64_len,
-                                      int url_safe);
+grpc_slice grpc_base64_decode_with_len(const char *b64, size_t b64_len,
+                                       int url_safe);
 
 #endif /* GRPC_CORE_LIB_SECURITY_UTIL_B64_H */
diff --git a/src/core/lib/support/percent_encoding.c b/src/core/lib/slice/percent_encoding.c
similarity index 76%
rename from src/core/lib/support/percent_encoding.c
rename to src/core/lib/slice/percent_encoding.c
index 3c19f26..b9e35f1 100644
--- a/src/core/lib/support/percent_encoding.c
+++ b/src/core/lib/slice/percent_encoding.c
@@ -31,15 +31,15 @@
  *
  */
 
-#include "src/core/lib/support/percent_encoding.h"
+#include "src/core/lib/slice/percent_encoding.h"
 
 #include <grpc/support/log.h>
 
-const uint8_t gpr_url_percent_encoding_unreserved_bytes[256 / 8] = {
+const uint8_t grpc_url_percent_encoding_unreserved_bytes[256 / 8] = {
     0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0xff, 0x03, 0xfe, 0xff, 0xff,
     0x87, 0xfe, 0xff, 0xff, 0x47, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-const uint8_t gpr_compatible_percent_encoding_unreserved_bytes[256 / 8] = {
+const uint8_t grpc_compatible_percent_encoding_unreserved_bytes[256 / 8] = {
     0x00, 0x00, 0x00, 0x00, 0xdf, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
     0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
@@ -49,14 +49,14 @@
   return ((unreserved_bytes[c / 8] >> (c % 8)) & 1) != 0;
 }
 
-gpr_slice gpr_percent_encode_slice(gpr_slice slice,
-                                   const uint8_t *unreserved_bytes) {
+grpc_slice grpc_percent_encode_slice(grpc_slice slice,
+                                     const uint8_t *unreserved_bytes) {
   static const uint8_t hex[] = "0123456789ABCDEF";
 
   // first pass: count the number of bytes needed to output this string
   size_t output_length = 0;
-  const uint8_t *slice_start = GPR_SLICE_START_PTR(slice);
-  const uint8_t *slice_end = GPR_SLICE_END_PTR(slice);
+  const uint8_t *slice_start = GRPC_SLICE_START_PTR(slice);
+  const uint8_t *slice_end = GRPC_SLICE_END_PTR(slice);
   const uint8_t *p;
   bool any_reserved_bytes = false;
   for (p = slice_start; p < slice_end; p++) {
@@ -66,11 +66,11 @@
   }
   // no unreserved bytes: return the string unmodified
   if (!any_reserved_bytes) {
-    return gpr_slice_ref(slice);
+    return grpc_slice_ref(slice);
   }
   // second pass: actually encode
-  gpr_slice out = gpr_slice_malloc(output_length);
-  uint8_t *q = GPR_SLICE_START_PTR(out);
+  grpc_slice out = grpc_slice_malloc(output_length);
+  uint8_t *q = GRPC_SLICE_START_PTR(out);
   for (p = slice_start; p < slice_end; p++) {
     if (is_unreserved_character(*p, unreserved_bytes)) {
       *q++ = *p;
@@ -80,7 +80,7 @@
       *q++ = hex[*p & 15];
     }
   }
-  GPR_ASSERT(q == GPR_SLICE_END_PTR(out));
+  GPR_ASSERT(q == GRPC_SLICE_END_PTR(out));
   return out;
 }
 
@@ -97,11 +97,11 @@
   GPR_UNREACHABLE_CODE(return 255);
 }
 
-bool gpr_strict_percent_decode_slice(gpr_slice slice_in,
-                                     const uint8_t *unreserved_bytes,
-                                     gpr_slice *slice_out) {
-  const uint8_t *p = GPR_SLICE_START_PTR(slice_in);
-  const uint8_t *in_end = GPR_SLICE_END_PTR(slice_in);
+bool grpc_strict_percent_decode_slice(grpc_slice slice_in,
+                                      const uint8_t *unreserved_bytes,
+                                      grpc_slice *slice_out) {
+  const uint8_t *p = GRPC_SLICE_START_PTR(slice_in);
+  const uint8_t *in_end = GRPC_SLICE_END_PTR(slice_in);
   size_t out_length = 0;
   bool any_percent_encoded_stuff = false;
   while (p != in_end) {
@@ -119,12 +119,12 @@
     }
   }
   if (!any_percent_encoded_stuff) {
-    *slice_out = gpr_slice_ref(slice_in);
+    *slice_out = grpc_slice_ref(slice_in);
     return true;
   }
-  p = GPR_SLICE_START_PTR(slice_in);
-  *slice_out = gpr_slice_malloc(out_length);
-  uint8_t *q = GPR_SLICE_START_PTR(*slice_out);
+  p = GRPC_SLICE_START_PTR(slice_in);
+  *slice_out = grpc_slice_malloc(out_length);
+  uint8_t *q = GRPC_SLICE_START_PTR(*slice_out);
   while (p != in_end) {
     if (*p == '%') {
       *q++ = (uint8_t)(dehex(p[1]) << 4) | (dehex(p[2]));
@@ -133,13 +133,13 @@
       *q++ = *p++;
     }
   }
-  GPR_ASSERT(q == GPR_SLICE_END_PTR(*slice_out));
+  GPR_ASSERT(q == GRPC_SLICE_END_PTR(*slice_out));
   return true;
 }
 
-gpr_slice gpr_permissive_percent_decode_slice(gpr_slice slice_in) {
-  const uint8_t *p = GPR_SLICE_START_PTR(slice_in);
-  const uint8_t *in_end = GPR_SLICE_END_PTR(slice_in);
+grpc_slice grpc_permissive_percent_decode_slice(grpc_slice slice_in) {
+  const uint8_t *p = GRPC_SLICE_START_PTR(slice_in);
+  const uint8_t *in_end = GRPC_SLICE_END_PTR(slice_in);
   size_t out_length = 0;
   bool any_percent_encoded_stuff = false;
   while (p != in_end) {
@@ -158,11 +158,11 @@
     }
   }
   if (!any_percent_encoded_stuff) {
-    return gpr_slice_ref(slice_in);
+    return grpc_slice_ref(slice_in);
   }
-  p = GPR_SLICE_START_PTR(slice_in);
-  gpr_slice out = gpr_slice_malloc(out_length);
-  uint8_t *q = GPR_SLICE_START_PTR(out);
+  p = GRPC_SLICE_START_PTR(slice_in);
+  grpc_slice out = grpc_slice_malloc(out_length);
+  uint8_t *q = GRPC_SLICE_START_PTR(out);
   while (p != in_end) {
     if (*p == '%') {
       if (!valid_hex(p + 1, in_end) || !valid_hex(p + 2, in_end)) {
@@ -175,6 +175,6 @@
       *q++ = *p++;
     }
   }
-  GPR_ASSERT(q == GPR_SLICE_END_PTR(out));
+  GPR_ASSERT(q == GRPC_SLICE_END_PTR(out));
   return out;
 }
diff --git a/src/core/lib/support/percent_encoding.h b/src/core/lib/slice/percent_encoding.h
similarity index 79%
rename from src/core/lib/support/percent_encoding.h
rename to src/core/lib/slice/percent_encoding.h
index 000bf14..189bdbe 100644
--- a/src/core/lib/support/percent_encoding.h
+++ b/src/core/lib/slice/percent_encoding.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_SUPPORT_PERCENT_ENCODING_H
-#define GRPC_CORE_LIB_SUPPORT_PERCENT_ENCODING_H
+#ifndef GRPC_CORE_LIB_SLICE_PERCENT_ENCODING_H
+#define GRPC_CORE_LIB_SLICE_PERCENT_ENCODING_H
 
 /* Percent encoding and decoding of slices.
    Transforms arbitrary strings into safe-for-transmission strings by using
@@ -43,36 +43,36 @@
 
 #include <stdbool.h>
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 
 /* URL percent encoding spec bitfield (usabel as 'unreserved_bytes' in
-   gpr_percent_encode_slice, gpr_strict_percent_decode_slice).
+   grpc_percent_encode_slice, grpc_strict_percent_decode_slice).
    Flags [A-Za-z0-9-_.~] as unreserved bytes for the percent encoding routines
    */
-extern const uint8_t gpr_url_percent_encoding_unreserved_bytes[256 / 8];
+extern const uint8_t grpc_url_percent_encoding_unreserved_bytes[256 / 8];
 /* URL percent encoding spec bitfield (usabel as 'unreserved_bytes' in
-   gpr_percent_encode_slice, gpr_strict_percent_decode_slice).
+   grpc_percent_encode_slice, grpc_strict_percent_decode_slice).
    Flags ascii7 non-control characters excluding '%' as unreserved bytes for the
    percent encoding routines */
-extern const uint8_t gpr_compatible_percent_encoding_unreserved_bytes[256 / 8];
+extern const uint8_t grpc_compatible_percent_encoding_unreserved_bytes[256 / 8];
 
 /* Percent-encode a slice, returning the new slice (this cannot fail):
    unreserved_bytes is a bitfield indicating which bytes are considered
    unreserved and thus do not need percent encoding */
-gpr_slice gpr_percent_encode_slice(gpr_slice slice,
-                                   const uint8_t *unreserved_bytes);
+grpc_slice grpc_percent_encode_slice(grpc_slice slice,
+                                     const uint8_t *unreserved_bytes);
 /* Percent-decode a slice, strictly.
    If the input is legal (contains no unreserved bytes, and legal % encodings),
    returns true and sets *slice_out to the decoded slice.
    If the input is not legal, returns false and leaves *slice_out untouched.
    unreserved_bytes is a bitfield indicating which bytes are considered
    unreserved and thus do not need percent encoding */
-bool gpr_strict_percent_decode_slice(gpr_slice slice_in,
-                                     const uint8_t *unreserved_bytes,
-                                     gpr_slice *slice_out);
+bool grpc_strict_percent_decode_slice(grpc_slice slice_in,
+                                      const uint8_t *unreserved_bytes,
+                                      grpc_slice *slice_out);
 /* Percent-decode a slice, permissively.
    If a % triplet can not be decoded, pass it through verbatim.
    This cannot fail. */
-gpr_slice gpr_permissive_percent_decode_slice(gpr_slice slice_in);
+grpc_slice grpc_permissive_percent_decode_slice(grpc_slice slice_in);
 
-#endif /* GRPC_CORE_LIB_SUPPORT_PERCENT_ENCODING_H */
+#endif /* GRPC_CORE_LIB_SLICE_PERCENT_ENCODING_H */
diff --git a/src/core/lib/support/slice.c b/src/core/lib/slice/slice.c
similarity index 78%
rename from src/core/lib/support/slice.c
rename to src/core/lib/slice/slice.c
index 8a2c0a9..3dac18d 100644
--- a/src/core/lib/support/slice.c
+++ b/src/core/lib/slice/slice.c
@@ -31,51 +31,51 @@
  *
  */
 
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 
 #include <string.h>
 
-gpr_slice gpr_empty_slice(void) {
-  gpr_slice out;
+grpc_slice gpr_empty_slice(void) {
+  grpc_slice out;
   out.refcount = 0;
   out.data.inlined.length = 0;
   return out;
 }
 
-gpr_slice gpr_slice_ref(gpr_slice slice) {
+grpc_slice grpc_slice_ref(grpc_slice slice) {
   if (slice.refcount) {
     slice.refcount->ref(slice.refcount);
   }
   return slice;
 }
 
-void gpr_slice_unref(gpr_slice slice) {
+void grpc_slice_unref(grpc_slice slice) {
   if (slice.refcount) {
     slice.refcount->unref(slice.refcount);
   }
 }
 
-/* gpr_slice_from_static_string support structure - a refcount that does
+/* grpc_slice_from_static_string support structure - a refcount that does
    nothing */
 static void noop_ref_or_unref(void *unused) {}
 
-static gpr_slice_refcount noop_refcount = {noop_ref_or_unref,
-                                           noop_ref_or_unref};
+static grpc_slice_refcount noop_refcount = {noop_ref_or_unref,
+                                            noop_ref_or_unref};
 
-gpr_slice gpr_slice_from_static_string(const char *s) {
-  gpr_slice slice;
+grpc_slice grpc_slice_from_static_string(const char *s) {
+  grpc_slice slice;
   slice.refcount = &noop_refcount;
   slice.data.refcounted.bytes = (uint8_t *)s;
   slice.data.refcounted.length = strlen(s);
   return slice;
 }
 
-/* gpr_slice_new support structures - we create a refcount object extended
+/* grpc_slice_new support structures - we create a refcount object extended
    with the user provided data pointer & destroy function */
 typedef struct new_slice_refcount {
-  gpr_slice_refcount rc;
+  grpc_slice_refcount rc;
   gpr_refcount refs;
   void (*user_destroy)(void *);
   void *user_data;
@@ -94,10 +94,10 @@
   }
 }
 
-gpr_slice gpr_slice_new_with_user_data(void *p, size_t len,
-                                       void (*destroy)(void *),
-                                       void *user_data) {
-  gpr_slice slice;
+grpc_slice grpc_slice_new_with_user_data(void *p, size_t len,
+                                         void (*destroy)(void *),
+                                         void *user_data) {
+  grpc_slice slice;
   new_slice_refcount *rc = gpr_malloc(sizeof(new_slice_refcount));
   gpr_ref_init(&rc->refs, 1);
   rc->rc.ref = new_slice_ref;
@@ -111,15 +111,15 @@
   return slice;
 }
 
-gpr_slice gpr_slice_new(void *p, size_t len, void (*destroy)(void *)) {
+grpc_slice grpc_slice_new(void *p, size_t len, void (*destroy)(void *)) {
   /* Pass "p" to *destroy when the slice is no longer needed. */
-  return gpr_slice_new_with_user_data(p, len, destroy, p);
+  return grpc_slice_new_with_user_data(p, len, destroy, p);
 }
 
-/* gpr_slice_new_with_len support structures - we create a refcount object
+/* grpc_slice_new_with_len support structures - we create a refcount object
    extended with the user provided data pointer & destroy function */
 typedef struct new_with_len_slice_refcount {
-  gpr_slice_refcount rc;
+  grpc_slice_refcount rc;
   gpr_refcount refs;
   void *user_data;
   size_t user_length;
@@ -139,9 +139,9 @@
   }
 }
 
-gpr_slice gpr_slice_new_with_len(void *p, size_t len,
-                                 void (*destroy)(void *, size_t)) {
-  gpr_slice slice;
+grpc_slice grpc_slice_new_with_len(void *p, size_t len,
+                                   void (*destroy)(void *, size_t)) {
+  grpc_slice slice;
   new_with_len_slice_refcount *rc =
       gpr_malloc(sizeof(new_with_len_slice_refcount));
   gpr_ref_init(&rc->refs, 1);
@@ -157,18 +157,18 @@
   return slice;
 }
 
-gpr_slice gpr_slice_from_copied_buffer(const char *source, size_t length) {
-  gpr_slice slice = gpr_slice_malloc(length);
-  memcpy(GPR_SLICE_START_PTR(slice), source, length);
+grpc_slice grpc_slice_from_copied_buffer(const char *source, size_t length) {
+  grpc_slice slice = grpc_slice_malloc(length);
+  memcpy(GRPC_SLICE_START_PTR(slice), source, length);
   return slice;
 }
 
-gpr_slice gpr_slice_from_copied_string(const char *source) {
-  return gpr_slice_from_copied_buffer(source, strlen(source));
+grpc_slice grpc_slice_from_copied_string(const char *source) {
+  return grpc_slice_from_copied_buffer(source, strlen(source));
 }
 
 typedef struct {
-  gpr_slice_refcount base;
+  grpc_slice_refcount base;
   gpr_refcount refs;
 } malloc_refcount;
 
@@ -184,8 +184,8 @@
   }
 }
 
-gpr_slice gpr_slice_malloc(size_t length) {
-  gpr_slice slice;
+grpc_slice grpc_slice_malloc(size_t length) {
+  grpc_slice slice;
 
   if (length > sizeof(slice.data.inlined.bytes)) {
     /* Memory layout used by the slice created here:
@@ -221,8 +221,8 @@
   return slice;
 }
 
-gpr_slice gpr_slice_sub_no_ref(gpr_slice source, size_t begin, size_t end) {
-  gpr_slice subset;
+grpc_slice grpc_slice_sub_no_ref(grpc_slice source, size_t begin, size_t end) {
+  grpc_slice subset;
 
   GPR_ASSERT(end >= begin);
 
@@ -246,24 +246,24 @@
   return subset;
 }
 
-gpr_slice gpr_slice_sub(gpr_slice source, size_t begin, size_t end) {
-  gpr_slice subset;
+grpc_slice grpc_slice_sub(grpc_slice source, size_t begin, size_t end) {
+  grpc_slice subset;
 
   if (end - begin <= sizeof(subset.data.inlined.bytes)) {
     subset.refcount = NULL;
     subset.data.inlined.length = (uint8_t)(end - begin);
-    memcpy(subset.data.inlined.bytes, GPR_SLICE_START_PTR(source) + begin,
+    memcpy(subset.data.inlined.bytes, GRPC_SLICE_START_PTR(source) + begin,
            end - begin);
   } else {
-    subset = gpr_slice_sub_no_ref(source, begin, end);
+    subset = grpc_slice_sub_no_ref(source, begin, end);
     /* Bump the refcount */
     subset.refcount->ref(subset.refcount);
   }
   return subset;
 }
 
-gpr_slice gpr_slice_split_tail(gpr_slice *source, size_t split) {
-  gpr_slice tail;
+grpc_slice grpc_slice_split_tail(grpc_slice *source, size_t split) {
+  grpc_slice tail;
 
   if (source->refcount == NULL) {
     /* inlined data, copy it out */
@@ -297,8 +297,8 @@
   return tail;
 }
 
-gpr_slice gpr_slice_split_head(gpr_slice *source, size_t split) {
-  gpr_slice head;
+grpc_slice grpc_slice_split_head(grpc_slice *source, size_t split) {
+  grpc_slice head;
 
   if (source->refcount == NULL) {
     GPR_ASSERT(source->data.inlined.length >= split);
@@ -335,16 +335,16 @@
   return head;
 }
 
-int gpr_slice_cmp(gpr_slice a, gpr_slice b) {
-  int d = (int)(GPR_SLICE_LENGTH(a) - GPR_SLICE_LENGTH(b));
+int grpc_slice_cmp(grpc_slice a, grpc_slice b) {
+  int d = (int)(GRPC_SLICE_LENGTH(a) - GRPC_SLICE_LENGTH(b));
   if (d != 0) return d;
-  return memcmp(GPR_SLICE_START_PTR(a), GPR_SLICE_START_PTR(b),
-                GPR_SLICE_LENGTH(a));
+  return memcmp(GRPC_SLICE_START_PTR(a), GRPC_SLICE_START_PTR(b),
+                GRPC_SLICE_LENGTH(a));
 }
 
-int gpr_slice_str_cmp(gpr_slice a, const char *b) {
+int grpc_slice_str_cmp(grpc_slice a, const char *b) {
   size_t b_length = strlen(b);
-  int d = (int)(GPR_SLICE_LENGTH(a) - b_length);
+  int d = (int)(GRPC_SLICE_LENGTH(a) - b_length);
   if (d != 0) return d;
-  return memcmp(GPR_SLICE_START_PTR(a), b, b_length);
+  return memcmp(GRPC_SLICE_START_PTR(a), b, b_length);
 }
diff --git a/src/core/lib/support/slice_buffer.c b/src/core/lib/slice/slice_buffer.c
similarity index 65%
rename from src/core/lib/support/slice_buffer.c
rename to src/core/lib/slice/slice_buffer.c
index 66f111d..990ef12 100644
--- a/src/core/lib/support/slice_buffer.c
+++ b/src/core/lib/slice/slice_buffer.c
@@ -31,8 +31,8 @@
  *
  */
 
+#include <grpc/slice_buffer.h>
 #include <grpc/support/port_platform.h>
-#include <grpc/support/slice_buffer.h>
 
 #include <string.h>
 
@@ -43,35 +43,35 @@
 /* grow a buffer; requires GRPC_SLICE_BUFFER_INLINE_ELEMENTS > 1 */
 #define GROW(x) (3 * (x) / 2)
 
-static void maybe_embiggen(gpr_slice_buffer *sb) {
+static void maybe_embiggen(grpc_slice_buffer *sb) {
   if (sb->count == sb->capacity) {
     sb->capacity = GROW(sb->capacity);
     GPR_ASSERT(sb->capacity > sb->count);
     if (sb->slices == sb->inlined) {
-      sb->slices = gpr_malloc(sb->capacity * sizeof(gpr_slice));
-      memcpy(sb->slices, sb->inlined, sb->count * sizeof(gpr_slice));
+      sb->slices = gpr_malloc(sb->capacity * sizeof(grpc_slice));
+      memcpy(sb->slices, sb->inlined, sb->count * sizeof(grpc_slice));
     } else {
-      sb->slices = gpr_realloc(sb->slices, sb->capacity * sizeof(gpr_slice));
+      sb->slices = gpr_realloc(sb->slices, sb->capacity * sizeof(grpc_slice));
     }
   }
 }
 
-void gpr_slice_buffer_init(gpr_slice_buffer *sb) {
+void grpc_slice_buffer_init(grpc_slice_buffer *sb) {
   sb->count = 0;
   sb->length = 0;
   sb->capacity = GRPC_SLICE_BUFFER_INLINE_ELEMENTS;
   sb->slices = sb->inlined;
 }
 
-void gpr_slice_buffer_destroy(gpr_slice_buffer *sb) {
-  gpr_slice_buffer_reset_and_unref(sb);
+void grpc_slice_buffer_destroy(grpc_slice_buffer *sb) {
+  grpc_slice_buffer_reset_and_unref(sb);
   if (sb->slices != sb->inlined) {
     gpr_free(sb->slices);
   }
 }
 
-uint8_t *gpr_slice_buffer_tiny_add(gpr_slice_buffer *sb, size_t n) {
-  gpr_slice *back;
+uint8_t *grpc_slice_buffer_tiny_add(grpc_slice_buffer *sb, size_t n) {
+  grpc_slice *back;
   uint8_t *out;
 
   sb->length += n;
@@ -94,16 +94,16 @@
   return back->data.inlined.bytes;
 }
 
-size_t gpr_slice_buffer_add_indexed(gpr_slice_buffer *sb, gpr_slice s) {
+size_t grpc_slice_buffer_add_indexed(grpc_slice_buffer *sb, grpc_slice s) {
   size_t out = sb->count;
   maybe_embiggen(sb);
   sb->slices[out] = s;
-  sb->length += GPR_SLICE_LENGTH(s);
+  sb->length += GRPC_SLICE_LENGTH(s);
   sb->count = out + 1;
   return out;
 }
 
-void gpr_slice_buffer_add(gpr_slice_buffer *sb, gpr_slice s) {
+void grpc_slice_buffer_add(grpc_slice_buffer *sb, grpc_slice s) {
   size_t n = sb->count;
   /* if both the last slice in the slice buffer and the slice being added
      are inlined (that is, that they carry their data inside the slice data
@@ -111,19 +111,20 @@
      into the back slice, preventing many small slices being passed into
      writes */
   if (!s.refcount && n) {
-    gpr_slice *back = &sb->slices[n - 1];
-    if (!back->refcount && back->data.inlined.length < GPR_SLICE_INLINED_SIZE) {
+    grpc_slice *back = &sb->slices[n - 1];
+    if (!back->refcount &&
+        back->data.inlined.length < GRPC_SLICE_INLINED_SIZE) {
       if (s.data.inlined.length + back->data.inlined.length <=
-          GPR_SLICE_INLINED_SIZE) {
+          GRPC_SLICE_INLINED_SIZE) {
         memcpy(back->data.inlined.bytes + back->data.inlined.length,
                s.data.inlined.bytes, s.data.inlined.length);
         back->data.inlined.length =
             (uint8_t)(back->data.inlined.length + s.data.inlined.length);
       } else {
-        size_t cp1 = GPR_SLICE_INLINED_SIZE - back->data.inlined.length;
+        size_t cp1 = GRPC_SLICE_INLINED_SIZE - back->data.inlined.length;
         memcpy(back->data.inlined.bytes + back->data.inlined.length,
                s.data.inlined.bytes, cp1);
-        back->data.inlined.length = GPR_SLICE_INLINED_SIZE;
+        back->data.inlined.length = GRPC_SLICE_INLINED_SIZE;
         maybe_embiggen(sb);
         back = &sb->slices[n];
         sb->count = n + 1;
@@ -136,35 +137,35 @@
       return; /* early out */
     }
   }
-  gpr_slice_buffer_add_indexed(sb, s);
+  grpc_slice_buffer_add_indexed(sb, s);
 }
 
-void gpr_slice_buffer_addn(gpr_slice_buffer *sb, gpr_slice *s, size_t n) {
+void grpc_slice_buffer_addn(grpc_slice_buffer *sb, grpc_slice *s, size_t n) {
   size_t i;
   for (i = 0; i < n; i++) {
-    gpr_slice_buffer_add(sb, s[i]);
+    grpc_slice_buffer_add(sb, s[i]);
   }
 }
 
-void gpr_slice_buffer_pop(gpr_slice_buffer *sb) {
+void grpc_slice_buffer_pop(grpc_slice_buffer *sb) {
   if (sb->count != 0) {
     size_t count = --sb->count;
-    sb->length -= GPR_SLICE_LENGTH(sb->slices[count]);
+    sb->length -= GRPC_SLICE_LENGTH(sb->slices[count]);
   }
 }
 
-void gpr_slice_buffer_reset_and_unref(gpr_slice_buffer *sb) {
+void grpc_slice_buffer_reset_and_unref(grpc_slice_buffer *sb) {
   size_t i;
 
   for (i = 0; i < sb->count; i++) {
-    gpr_slice_unref(sb->slices[i]);
+    grpc_slice_unref(sb->slices[i]);
   }
 
   sb->count = 0;
   sb->length = 0;
 }
 
-void gpr_slice_buffer_swap(gpr_slice_buffer *a, gpr_slice_buffer *b) {
+void grpc_slice_buffer_swap(grpc_slice_buffer *a, grpc_slice_buffer *b) {
   GPR_SWAP(size_t, a->count, b->count);
   GPR_SWAP(size_t, a->capacity, b->capacity);
   GPR_SWAP(size_t, a->length, b->length);
@@ -172,111 +173,112 @@
   if (a->slices == a->inlined) {
     if (b->slices == b->inlined) {
       /* swap contents of inlined buffer */
-      gpr_slice temp[GRPC_SLICE_BUFFER_INLINE_ELEMENTS];
-      memcpy(temp, a->slices, b->count * sizeof(gpr_slice));
-      memcpy(a->slices, b->slices, a->count * sizeof(gpr_slice));
-      memcpy(b->slices, temp, b->count * sizeof(gpr_slice));
+      grpc_slice temp[GRPC_SLICE_BUFFER_INLINE_ELEMENTS];
+      memcpy(temp, a->slices, b->count * sizeof(grpc_slice));
+      memcpy(a->slices, b->slices, a->count * sizeof(grpc_slice));
+      memcpy(b->slices, temp, b->count * sizeof(grpc_slice));
     } else {
       /* a is inlined, b is not - copy a inlined into b, fix pointers */
       a->slices = b->slices;
       b->slices = b->inlined;
-      memcpy(b->slices, a->inlined, b->count * sizeof(gpr_slice));
+      memcpy(b->slices, a->inlined, b->count * sizeof(grpc_slice));
     }
   } else if (b->slices == b->inlined) {
     /* b is inlined, a is not - copy b inlined int a, fix pointers */
     b->slices = a->slices;
     a->slices = a->inlined;
-    memcpy(a->slices, b->inlined, a->count * sizeof(gpr_slice));
+    memcpy(a->slices, b->inlined, a->count * sizeof(grpc_slice));
   } else {
     /* no inlining: easy swap */
-    GPR_SWAP(gpr_slice *, a->slices, b->slices);
+    GPR_SWAP(grpc_slice *, a->slices, b->slices);
   }
 }
 
-void gpr_slice_buffer_move_into(gpr_slice_buffer *src, gpr_slice_buffer *dst) {
+void grpc_slice_buffer_move_into(grpc_slice_buffer *src,
+                                 grpc_slice_buffer *dst) {
   /* anything to move? */
   if (src->count == 0) {
     return;
   }
   /* anything in dst? */
   if (dst->count == 0) {
-    gpr_slice_buffer_swap(src, dst);
+    grpc_slice_buffer_swap(src, dst);
     return;
   }
   /* both buffers have data - copy, and reset src */
-  gpr_slice_buffer_addn(dst, src->slices, src->count);
+  grpc_slice_buffer_addn(dst, src->slices, src->count);
   src->count = 0;
   src->length = 0;
 }
 
-void gpr_slice_buffer_move_first(gpr_slice_buffer *src, size_t n,
-                                 gpr_slice_buffer *dst) {
+void grpc_slice_buffer_move_first(grpc_slice_buffer *src, size_t n,
+                                  grpc_slice_buffer *dst) {
   size_t src_idx;
   size_t output_len = dst->length + n;
   size_t new_input_len = src->length - n;
   GPR_ASSERT(src->length >= n);
   if (src->length == n) {
-    gpr_slice_buffer_move_into(src, dst);
+    grpc_slice_buffer_move_into(src, dst);
     return;
   }
   src_idx = 0;
   while (src_idx < src->capacity) {
-    gpr_slice slice = src->slices[src_idx];
-    size_t slice_len = GPR_SLICE_LENGTH(slice);
+    grpc_slice slice = src->slices[src_idx];
+    size_t slice_len = GRPC_SLICE_LENGTH(slice);
     if (n > slice_len) {
-      gpr_slice_buffer_add(dst, slice);
+      grpc_slice_buffer_add(dst, slice);
       n -= slice_len;
       src_idx++;
     } else if (n == slice_len) {
-      gpr_slice_buffer_add(dst, slice);
+      grpc_slice_buffer_add(dst, slice);
       src_idx++;
       break;
     } else { /* n < slice_len */
-      src->slices[src_idx] = gpr_slice_split_tail(&slice, n);
-      GPR_ASSERT(GPR_SLICE_LENGTH(slice) == n);
-      GPR_ASSERT(GPR_SLICE_LENGTH(src->slices[src_idx]) == slice_len - n);
-      gpr_slice_buffer_add(dst, slice);
+      src->slices[src_idx] = grpc_slice_split_tail(&slice, n);
+      GPR_ASSERT(GRPC_SLICE_LENGTH(slice) == n);
+      GPR_ASSERT(GRPC_SLICE_LENGTH(src->slices[src_idx]) == slice_len - n);
+      grpc_slice_buffer_add(dst, slice);
       break;
     }
   }
   GPR_ASSERT(dst->length == output_len);
   memmove(src->slices, src->slices + src_idx,
-          sizeof(gpr_slice) * (src->count - src_idx));
+          sizeof(grpc_slice) * (src->count - src_idx));
   src->count -= src_idx;
   src->length = new_input_len;
   GPR_ASSERT(src->count > 0);
 }
 
-void gpr_slice_buffer_trim_end(gpr_slice_buffer *sb, size_t n,
-                               gpr_slice_buffer *garbage) {
+void grpc_slice_buffer_trim_end(grpc_slice_buffer *sb, size_t n,
+                                grpc_slice_buffer *garbage) {
   GPR_ASSERT(n <= sb->length);
   sb->length -= n;
   for (;;) {
     size_t idx = sb->count - 1;
-    gpr_slice slice = sb->slices[idx];
-    size_t slice_len = GPR_SLICE_LENGTH(slice);
+    grpc_slice slice = sb->slices[idx];
+    size_t slice_len = GRPC_SLICE_LENGTH(slice);
     if (slice_len > n) {
-      sb->slices[idx] = gpr_slice_split_head(&slice, slice_len - n);
-      gpr_slice_buffer_add_indexed(garbage, slice);
+      sb->slices[idx] = grpc_slice_split_head(&slice, slice_len - n);
+      grpc_slice_buffer_add_indexed(garbage, slice);
       return;
     } else if (slice_len == n) {
-      gpr_slice_buffer_add_indexed(garbage, slice);
+      grpc_slice_buffer_add_indexed(garbage, slice);
       sb->count = idx;
       return;
     } else {
-      gpr_slice_buffer_add_indexed(garbage, slice);
+      grpc_slice_buffer_add_indexed(garbage, slice);
       n -= slice_len;
       sb->count = idx;
     }
   }
 }
 
-gpr_slice gpr_slice_buffer_take_first(gpr_slice_buffer *sb) {
-  gpr_slice slice;
+grpc_slice grpc_slice_buffer_take_first(grpc_slice_buffer *sb) {
+  grpc_slice slice;
   GPR_ASSERT(sb->count > 0);
   slice = sb->slices[0];
-  memmove(&sb->slices[0], &sb->slices[1], (sb->count - 1) * sizeof(gpr_slice));
+  memmove(&sb->slices[0], &sb->slices[1], (sb->count - 1) * sizeof(grpc_slice));
   sb->count--;
-  sb->length -= GPR_SLICE_LENGTH(slice);
+  sb->length -= GRPC_SLICE_LENGTH(slice);
   return slice;
 }
diff --git a/src/core/lib/slice/slice_string_helpers.c b/src/core/lib/slice/slice_string_helpers.c
new file mode 100644
index 0000000..4731762
--- /dev/null
+++ b/src/core/lib/slice/slice_string_helpers.c
@@ -0,0 +1,89 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/lib/slice/slice_string_helpers.h"
+
+#include <string.h>
+
+#include <grpc/support/log.h>
+
+#include "src/core/lib/support/string.h"
+
+char *grpc_dump_slice(grpc_slice s, uint32_t flags) {
+  return gpr_dump((const char *)GRPC_SLICE_START_PTR(s), GRPC_SLICE_LENGTH(s),
+                  flags);
+}
+
+/** Finds the initial (\a begin) and final (\a end) offsets of the next
+ * substring from \a str + \a read_offset until the next \a sep or the end of \a
+ * str.
+ *
+ * Returns 1 and updates \a begin and \a end. Returns 0 otherwise. */
+static int slice_find_separator_offset(const grpc_slice str, const char *sep,
+                                       const size_t read_offset, size_t *begin,
+                                       size_t *end) {
+  size_t i;
+  const uint8_t *str_ptr = GRPC_SLICE_START_PTR(str) + read_offset;
+  const size_t str_len = GRPC_SLICE_LENGTH(str) - read_offset;
+  const size_t sep_len = strlen(sep);
+  if (str_len < sep_len) {
+    return 0;
+  }
+
+  for (i = 0; i <= str_len - sep_len; i++) {
+    if (memcmp(str_ptr + i, sep, sep_len) == 0) {
+      *begin = read_offset;
+      *end = read_offset + i;
+      return 1;
+    }
+  }
+  return 0;
+}
+
+void grpc_slice_split(grpc_slice str, const char *sep, grpc_slice_buffer *dst) {
+  const size_t sep_len = strlen(sep);
+  size_t begin, end;
+
+  GPR_ASSERT(sep_len > 0);
+
+  if (slice_find_separator_offset(str, sep, 0, &begin, &end) != 0) {
+    do {
+      grpc_slice_buffer_add_indexed(dst, grpc_slice_sub(str, begin, end));
+    } while (slice_find_separator_offset(str, sep, end + sep_len, &begin,
+                                         &end) != 0);
+    grpc_slice_buffer_add_indexed(
+        dst, grpc_slice_sub(str, end + sep_len, GRPC_SLICE_LENGTH(str)));
+  } else { /* no sep found, add whole input */
+    grpc_slice_buffer_add_indexed(dst, grpc_slice_ref(str));
+  }
+}
diff --git a/src/core/lib/slice/slice_string_helpers.h b/src/core/lib/slice/slice_string_helpers.h
new file mode 100644
index 0000000..151c720
--- /dev/null
+++ b/src/core/lib/slice/slice_string_helpers.h
@@ -0,0 +1,58 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_CORE_LIB_SLICE_SLICE_STRING_HELPERS_H
+#define GRPC_CORE_LIB_SLICE_SLICE_STRING_HELPERS_H
+
+#include <stddef.h>
+
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
+#include <grpc/support/port_platform.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Calls gpr_dump on a slice. */
+char *grpc_dump_slice(grpc_slice slice, uint32_t flags);
+
+/** Split \a str by the separator \a sep. Results are stored in \a dst, which
+ * should be a properly initialized instance. */
+void grpc_slice_split(grpc_slice str, const char *sep, grpc_slice_buffer *dst);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GRPC_CORE_LIB_SLICE_SLICE_STRING_HELPERS_H */
diff --git a/src/core/lib/support/env.h b/src/core/lib/support/env.h
index ec3959b..1a24216 100644
--- a/src/core/lib/support/env.h
+++ b/src/core/lib/support/env.h
@@ -36,7 +36,7 @@
 
 #include <stdio.h>
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/src/core/lib/support/string.c b/src/core/lib/support/string.c
index d17fb9d..dc243bf 100644
--- a/src/core/lib/support/string.c
+++ b/src/core/lib/support/string.c
@@ -120,11 +120,6 @@
   return out.data;
 }
 
-char *gpr_dump_slice(gpr_slice s, uint32_t flags) {
-  return gpr_dump((const char *)GPR_SLICE_START_PTR(s), GPR_SLICE_LENGTH(s),
-                  flags);
-}
-
 int gpr_parse_bytes_to_uint32(const char *buf, size_t len, uint32_t *result) {
   uint32_t out = 0;
   uint32_t new;
@@ -239,50 +234,6 @@
   return out;
 }
 
-/** Finds the initial (\a begin) and final (\a end) offsets of the next
- * substring from \a str + \a read_offset until the next \a sep or the end of \a
- * str.
- *
- * Returns 1 and updates \a begin and \a end. Returns 0 otherwise. */
-static int slice_find_separator_offset(const gpr_slice str, const char *sep,
-                                       const size_t read_offset, size_t *begin,
-                                       size_t *end) {
-  size_t i;
-  const uint8_t *str_ptr = GPR_SLICE_START_PTR(str) + read_offset;
-  const size_t str_len = GPR_SLICE_LENGTH(str) - read_offset;
-  const size_t sep_len = strlen(sep);
-  if (str_len < sep_len) {
-    return 0;
-  }
-
-  for (i = 0; i <= str_len - sep_len; i++) {
-    if (memcmp(str_ptr + i, sep, sep_len) == 0) {
-      *begin = read_offset;
-      *end = read_offset + i;
-      return 1;
-    }
-  }
-  return 0;
-}
-
-void gpr_slice_split(gpr_slice str, const char *sep, gpr_slice_buffer *dst) {
-  const size_t sep_len = strlen(sep);
-  size_t begin, end;
-
-  GPR_ASSERT(sep_len > 0);
-
-  if (slice_find_separator_offset(str, sep, 0, &begin, &end) != 0) {
-    do {
-      gpr_slice_buffer_add_indexed(dst, gpr_slice_sub(str, begin, end));
-    } while (slice_find_separator_offset(str, sep, end + sep_len, &begin,
-                                         &end) != 0);
-    gpr_slice_buffer_add_indexed(
-        dst, gpr_slice_sub(str, end + sep_len, GPR_SLICE_LENGTH(str)));
-  } else { /* no sep found, add whole input */
-    gpr_slice_buffer_add_indexed(dst, gpr_slice_ref(str));
-  }
-}
-
 void gpr_strvec_init(gpr_strvec *sv) { memset(sv, 0, sizeof(*sv)); }
 
 void gpr_strvec_destroy(gpr_strvec *sv) {
diff --git a/src/core/lib/support/string.h b/src/core/lib/support/string.h
index 9a94e94..13891d0 100644
--- a/src/core/lib/support/string.h
+++ b/src/core/lib/support/string.h
@@ -36,9 +36,9 @@
 
 #include <stddef.h>
 
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/port_platform.h>
-#include <grpc/support/slice.h>
-#include <grpc/support/slice_buffer.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -54,9 +54,6 @@
    Result should be freed with gpr_free() */
 char *gpr_dump(const char *buf, size_t len, uint32_t flags);
 
-/* Calls gpr_dump on a slice. */
-char *gpr_dump_slice(gpr_slice slice, uint32_t flags);
-
 /* Parses an array of bytes into an integer (base 10). Returns 1 on success,
    0 on failure. */
 int gpr_parse_bytes_to_uint32(const char *data, size_t length,
@@ -98,10 +95,6 @@
 char *gpr_strjoin_sep(const char **strs, size_t nstrs, const char *sep,
                       size_t *total_length);
 
-/** Split \a str by the separator \a sep. Results are stored in \a dst, which
- * should be a properly initialized instance. */
-void gpr_slice_split(gpr_slice str, const char *sep, gpr_slice_buffer *dst);
-
 /* A vector of strings... for building up a final string one piece at a time */
 typedef struct {
   char **strs;
diff --git a/src/core/lib/support/tmpfile.h b/src/core/lib/support/tmpfile.h
index 059142a..8952e5e 100644
--- a/src/core/lib/support/tmpfile.h
+++ b/src/core/lib/support/tmpfile.h
@@ -36,7 +36,7 @@
 
 #include <stdio.h>
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/src/core/lib/surface/byte_buffer.c b/src/core/lib/surface/byte_buffer.c
index 054a6e6..d646591 100644
--- a/src/core/lib/surface/byte_buffer.c
+++ b/src/core/lib/surface/byte_buffer.c
@@ -35,22 +35,23 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-grpc_byte_buffer *grpc_raw_byte_buffer_create(gpr_slice *slices,
+grpc_byte_buffer *grpc_raw_byte_buffer_create(grpc_slice *slices,
                                               size_t nslices) {
   return grpc_raw_compressed_byte_buffer_create(slices, nslices,
                                                 GRPC_COMPRESS_NONE);
 }
 
 grpc_byte_buffer *grpc_raw_compressed_byte_buffer_create(
-    gpr_slice *slices, size_t nslices, grpc_compression_algorithm compression) {
+    grpc_slice *slices, size_t nslices,
+    grpc_compression_algorithm compression) {
   size_t i;
   grpc_byte_buffer *bb = gpr_malloc(sizeof(grpc_byte_buffer));
   bb->type = GRPC_BB_RAW;
   bb->data.raw.compression = compression;
-  gpr_slice_buffer_init(&bb->data.raw.slice_buffer);
+  grpc_slice_buffer_init(&bb->data.raw.slice_buffer);
   for (i = 0; i < nslices; i++) {
-    gpr_slice_ref(slices[i]);
-    gpr_slice_buffer_add(&bb->data.raw.slice_buffer, slices[i]);
+    grpc_slice_ref(slices[i]);
+    grpc_slice_buffer_add(&bb->data.raw.slice_buffer, slices[i]);
   }
   return bb;
 }
@@ -58,13 +59,13 @@
 grpc_byte_buffer *grpc_raw_byte_buffer_from_reader(
     grpc_byte_buffer_reader *reader) {
   grpc_byte_buffer *bb = gpr_malloc(sizeof(grpc_byte_buffer));
-  gpr_slice slice;
+  grpc_slice slice;
   bb->type = GRPC_BB_RAW;
   bb->data.raw.compression = GRPC_COMPRESS_NONE;
-  gpr_slice_buffer_init(&bb->data.raw.slice_buffer);
+  grpc_slice_buffer_init(&bb->data.raw.slice_buffer);
 
   while (grpc_byte_buffer_reader_next(reader, &slice)) {
-    gpr_slice_buffer_add(&bb->data.raw.slice_buffer, slice);
+    grpc_slice_buffer_add(&bb->data.raw.slice_buffer, slice);
   }
   return bb;
 }
@@ -83,7 +84,7 @@
   if (!bb) return;
   switch (bb->type) {
     case GRPC_BB_RAW:
-      gpr_slice_buffer_destroy(&bb->data.raw.slice_buffer);
+      grpc_slice_buffer_destroy(&bb->data.raw.slice_buffer);
       break;
   }
   gpr_free(bb);
diff --git a/src/core/lib/surface/byte_buffer_reader.c b/src/core/lib/surface/byte_buffer_reader.c
index 310bacb..0089959 100644
--- a/src/core/lib/surface/byte_buffer_reader.c
+++ b/src/core/lib/surface/byte_buffer_reader.c
@@ -37,9 +37,9 @@
 #include <grpc/byte_buffer.h>
 #include <grpc/compression.h>
 #include <grpc/grpc.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice_buffer.h>
 
 #include "src/core/lib/compression/message_compress.h"
 
@@ -56,11 +56,11 @@
 
 int grpc_byte_buffer_reader_init(grpc_byte_buffer_reader *reader,
                                  grpc_byte_buffer *buffer) {
-  gpr_slice_buffer decompressed_slices_buffer;
+  grpc_slice_buffer decompressed_slices_buffer;
   reader->buffer_in = buffer;
   switch (reader->buffer_in->type) {
     case GRPC_BB_RAW:
-      gpr_slice_buffer_init(&decompressed_slices_buffer);
+      grpc_slice_buffer_init(&decompressed_slices_buffer);
       if (is_compressed(reader->buffer_in)) {
         if (grpc_msg_decompress(reader->buffer_in->data.raw.compression,
                                 &reader->buffer_in->data.raw.slice_buffer,
@@ -76,7 +76,7 @@
               grpc_raw_byte_buffer_create(decompressed_slices_buffer.slices,
                                           decompressed_slices_buffer.count);
         }
-        gpr_slice_buffer_destroy(&decompressed_slices_buffer);
+        grpc_slice_buffer_destroy(&decompressed_slices_buffer);
       } else { /* not compressed, use the input buffer as output */
         reader->buffer_out = reader->buffer_in;
       }
@@ -98,13 +98,13 @@
 }
 
 int grpc_byte_buffer_reader_next(grpc_byte_buffer_reader *reader,
-                                 gpr_slice *slice) {
+                                 grpc_slice *slice) {
   switch (reader->buffer_in->type) {
     case GRPC_BB_RAW: {
-      gpr_slice_buffer *slice_buffer;
+      grpc_slice_buffer *slice_buffer;
       slice_buffer = &reader->buffer_out->data.raw.slice_buffer;
       if (reader->current.index < slice_buffer->count) {
-        *slice = gpr_slice_ref(slice_buffer->slices[reader->current.index]);
+        *slice = grpc_slice_ref(slice_buffer->slices[reader->current.index]);
         reader->current.index += 1;
         return 1;
       }
@@ -114,18 +114,18 @@
   return 0;
 }
 
-gpr_slice grpc_byte_buffer_reader_readall(grpc_byte_buffer_reader *reader) {
-  gpr_slice in_slice;
+grpc_slice grpc_byte_buffer_reader_readall(grpc_byte_buffer_reader *reader) {
+  grpc_slice in_slice;
   size_t bytes_read = 0;
   const size_t input_size = grpc_byte_buffer_length(reader->buffer_out);
-  gpr_slice out_slice = gpr_slice_malloc(input_size);
-  uint8_t *const outbuf = GPR_SLICE_START_PTR(out_slice); /* just an alias */
+  grpc_slice out_slice = grpc_slice_malloc(input_size);
+  uint8_t *const outbuf = GRPC_SLICE_START_PTR(out_slice); /* just an alias */
 
   while (grpc_byte_buffer_reader_next(reader, &in_slice) != 0) {
-    const size_t slice_length = GPR_SLICE_LENGTH(in_slice);
-    memcpy(&(outbuf[bytes_read]), GPR_SLICE_START_PTR(in_slice), slice_length);
+    const size_t slice_length = GRPC_SLICE_LENGTH(in_slice);
+    memcpy(&(outbuf[bytes_read]), GRPC_SLICE_START_PTR(in_slice), slice_length);
     bytes_read += slice_length;
-    gpr_slice_unref(in_slice);
+    grpc_slice_unref(in_slice);
     GPR_ASSERT(bytes_read <= input_size);
   }
   return out_slice;
diff --git a/src/core/lib/surface/call.c b/src/core/lib/surface/call.c
index e3b088f..eafcba2 100644
--- a/src/core/lib/surface/call.c
+++ b/src/core/lib/surface/call.c
@@ -39,9 +39,9 @@
 
 #include <grpc/compression.h>
 #include <grpc/grpc.h>
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
 
@@ -49,6 +49,7 @@
 #include "src/core/lib/compression/algorithm_metadata.h"
 #include "src/core/lib/iomgr/timer.h"
 #include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/surface/api_trace.h"
 #include "src/core/lib/surface/call.h"
@@ -184,7 +185,7 @@
   grpc_slice_buffer_stream sending_stream;
   grpc_byte_stream *receiving_stream;
   grpc_byte_buffer **receiving_buffer;
-  gpr_slice receiving_slice;
+  grpc_slice receiving_slice;
   grpc_closure receiving_slice_ready;
   grpc_closure receiving_stream_ready;
   grpc_closure receiving_initial_metadata_ready;
@@ -493,8 +494,8 @@
 static void set_encodings_accepted_by_peer(grpc_call *call, grpc_mdelem *mdel) {
   size_t i;
   grpc_compression_algorithm algorithm;
-  gpr_slice_buffer accept_encoding_parts;
-  gpr_slice accept_encoding_slice;
+  grpc_slice_buffer accept_encoding_parts;
+  grpc_slice accept_encoding_slice;
   void *accepted_user_data;
 
   accepted_user_data =
@@ -506,23 +507,23 @@
   }
 
   accept_encoding_slice = mdel->value->slice;
-  gpr_slice_buffer_init(&accept_encoding_parts);
-  gpr_slice_split(accept_encoding_slice, ",", &accept_encoding_parts);
+  grpc_slice_buffer_init(&accept_encoding_parts);
+  grpc_slice_split(accept_encoding_slice, ",", &accept_encoding_parts);
 
   /* No need to zero call->encodings_accepted_by_peer: grpc_call_create already
    * zeroes the whole grpc_call */
   /* Always support no compression */
   GPR_BITSET(&call->encodings_accepted_by_peer, GRPC_COMPRESS_NONE);
   for (i = 0; i < accept_encoding_parts.count; i++) {
-    const gpr_slice *accept_encoding_entry_slice =
+    const grpc_slice *accept_encoding_entry_slice =
         &accept_encoding_parts.slices[i];
     if (grpc_compression_algorithm_parse(
-            (const char *)GPR_SLICE_START_PTR(*accept_encoding_entry_slice),
-            GPR_SLICE_LENGTH(*accept_encoding_entry_slice), &algorithm)) {
+            (const char *)GRPC_SLICE_START_PTR(*accept_encoding_entry_slice),
+            GRPC_SLICE_LENGTH(*accept_encoding_entry_slice), &algorithm)) {
       GPR_BITSET(&call->encodings_accepted_by_peer, algorithm);
     } else {
       char *accept_encoding_entry_str =
-          gpr_dump_slice(*accept_encoding_entry_slice, GPR_DUMP_ASCII);
+          grpc_dump_slice(*accept_encoding_entry_slice, GPR_DUMP_ASCII);
       gpr_log(GPR_ERROR,
               "Invalid entry in accept encoding metadata: '%s'. Ignoring.",
               accept_encoding_entry_str);
@@ -530,7 +531,7 @@
     }
   }
 
-  gpr_slice_buffer_destroy(&accept_encoding_parts);
+  grpc_slice_buffer_destroy(&accept_encoding_parts);
 
   grpc_mdelem_set_user_data(
       mdel, destroy_encodings_accepted_by_peer,
@@ -551,14 +552,14 @@
   for (i = 0; i < STATUS_SOURCE_COUNT; i++) {
     if (call->status[i].is_set) {
       if (call->status[i].details) {
-        gpr_slice details = call->status[i].details->slice;
-        size_t len = GPR_SLICE_LENGTH(details);
+        grpc_slice details = call->status[i].details->slice;
+        size_t len = GRPC_SLICE_LENGTH(details);
         if (len + 1 > *out_details_capacity) {
           *out_details_capacity =
               GPR_MAX(len + 1, *out_details_capacity * 3 / 2);
           *out_details = gpr_realloc(*out_details, *out_details_capacity);
         }
-        memcpy(*out_details, GPR_SLICE_START_PTR(details), len);
+        memcpy(*out_details, GRPC_SLICE_START_PTR(details), len);
         (*out_details)[len] = 0;
       } else {
         goto no_details;
@@ -900,7 +901,7 @@
     status = ((uint32_t)(intptr_t)user_data) - STATUS_OFFSET;
   } else {
     if (!gpr_parse_bytes_to_uint32(grpc_mdstr_as_c_string(md->value),
-                                   GPR_SLICE_LENGTH(md->value->slice),
+                                   GRPC_SLICE_LENGTH(md->value->slice),
                                    &status)) {
       status = GRPC_STATUS_UNKNOWN; /* could not parse status code */
     }
@@ -953,7 +954,7 @@
   mdusr = &dest->metadata[dest->count++];
   mdusr->key = grpc_mdstr_as_c_string(elem->key);
   mdusr->value = grpc_mdstr_as_c_string(elem->value);
-  mdusr->value_length = GPR_SLICE_LENGTH(elem->value->slice);
+  mdusr->value_length = GRPC_SLICE_LENGTH(elem->value->slice);
   GPR_TIMER_END("publish_app_metadata", 0);
   return elem;
 }
@@ -1085,8 +1086,8 @@
     if (grpc_byte_stream_next(exec_ctx, call->receiving_stream,
                               &call->receiving_slice, remaining,
                               &call->receiving_slice_ready)) {
-      gpr_slice_buffer_add(&(*call->receiving_buffer)->data.raw.slice_buffer,
-                           call->receiving_slice);
+      grpc_slice_buffer_add(&(*call->receiving_buffer)->data.raw.slice_buffer,
+                            call->receiving_slice);
     } else {
       return;
     }
@@ -1099,8 +1100,8 @@
   grpc_call *call = bctl->call;
 
   if (error == GRPC_ERROR_NONE) {
-    gpr_slice_buffer_add(&(*call->receiving_buffer)->data.raw.slice_buffer,
-                         call->receiving_slice);
+    grpc_slice_buffer_add(&(*call->receiving_buffer)->data.raw.slice_buffer,
+                          call->receiving_slice);
     continue_receiving_slices(exec_ctx, bctl);
   } else {
     if (grpc_trace_operation_failures) {
diff --git a/src/core/lib/surface/server.c b/src/core/lib/surface/server.c
index 3a90308..798f582 100644
--- a/src/core/lib/surface/server.c
+++ b/src/core/lib/surface/server.c
@@ -264,13 +264,13 @@
 
 struct shutdown_cleanup_args {
   grpc_closure closure;
-  gpr_slice slice;
+  grpc_slice slice;
 };
 
 static void shutdown_cleanup(grpc_exec_ctx *exec_ctx, void *arg,
                              grpc_error *error) {
   struct shutdown_cleanup_args *a = arg;
-  gpr_slice_unref(a->slice);
+  grpc_slice_unref(a->slice);
   gpr_free(a);
 }
 
@@ -283,7 +283,7 @@
 
   op->send_goaway = send_goaway;
   op->set_accept_stream = true;
-  sc->slice = gpr_slice_from_copied_string("Server shutdown");
+  sc->slice = grpc_slice_from_copied_string("Server shutdown");
   op->goaway_message = &sc->slice;
   op->goaway_status = GRPC_STATUS_OK;
   op->disconnect_with_error = send_disconnect;
@@ -459,8 +459,8 @@
 }
 
 static void cpstr(char **dest, size_t *capacity, grpc_mdstr *value) {
-  gpr_slice slice = value->slice;
-  size_t len = GPR_SLICE_LENGTH(slice);
+  grpc_slice slice = value->slice;
+  size_t len = GRPC_SLICE_LENGTH(slice);
 
   if (len + 1 > *capacity) {
     *capacity = GPR_MAX(len + 1, *capacity * 2);
diff --git a/src/core/lib/transport/byte_stream.c b/src/core/lib/transport/byte_stream.c
index 2f6c75c..2f1d7b7 100644
--- a/src/core/lib/transport/byte_stream.c
+++ b/src/core/lib/transport/byte_stream.c
@@ -38,7 +38,7 @@
 #include <grpc/support/log.h>
 
 int grpc_byte_stream_next(grpc_exec_ctx *exec_ctx,
-                          grpc_byte_stream *byte_stream, gpr_slice *slice,
+                          grpc_byte_stream *byte_stream, grpc_slice *slice,
                           size_t max_size_hint, grpc_closure *on_complete) {
   return byte_stream->next(exec_ctx, byte_stream, slice, max_size_hint,
                            on_complete);
@@ -53,11 +53,11 @@
 
 static int slice_buffer_stream_next(grpc_exec_ctx *exec_ctx,
                                     grpc_byte_stream *byte_stream,
-                                    gpr_slice *slice, size_t max_size_hint,
+                                    grpc_slice *slice, size_t max_size_hint,
                                     grpc_closure *on_complete) {
   grpc_slice_buffer_stream *stream = (grpc_slice_buffer_stream *)byte_stream;
   GPR_ASSERT(stream->cursor < stream->backing_buffer->count);
-  *slice = gpr_slice_ref(stream->backing_buffer->slices[stream->cursor]);
+  *slice = grpc_slice_ref(stream->backing_buffer->slices[stream->cursor]);
   stream->cursor++;
   return 1;
 }
@@ -66,7 +66,7 @@
                                         grpc_byte_stream *byte_stream) {}
 
 void grpc_slice_buffer_stream_init(grpc_slice_buffer_stream *stream,
-                                   gpr_slice_buffer *slice_buffer,
+                                   grpc_slice_buffer *slice_buffer,
                                    uint32_t flags) {
   GPR_ASSERT(slice_buffer->length <= UINT32_MAX);
   stream->base.length = (uint32_t)slice_buffer->length;
diff --git a/src/core/lib/transport/byte_stream.h b/src/core/lib/transport/byte_stream.h
index e64dce6..1fdd5b4 100644
--- a/src/core/lib/transport/byte_stream.h
+++ b/src/core/lib/transport/byte_stream.h
@@ -34,7 +34,7 @@
 #ifndef GRPC_CORE_LIB_TRANSPORT_BYTE_STREAM_H
 #define GRPC_CORE_LIB_TRANSPORT_BYTE_STREAM_H
 
-#include <grpc/support/slice_buffer.h>
+#include <grpc/slice_buffer.h>
 #include "src/core/lib/iomgr/exec_ctx.h"
 
 /** Internal bit flag for grpc_begin_message's \a flags signaling the use of
@@ -50,7 +50,7 @@
   uint32_t length;
   uint32_t flags;
   int (*next)(grpc_exec_ctx *exec_ctx, grpc_byte_stream *byte_stream,
-              gpr_slice *slice, size_t max_size_hint,
+              grpc_slice *slice, size_t max_size_hint,
               grpc_closure *on_complete);
   void (*destroy)(grpc_exec_ctx *exec_ctx, grpc_byte_stream *byte_stream);
 };
@@ -65,7 +65,7 @@
  * once a slice is returned into *slice, it is owned by the caller.
  */
 int grpc_byte_stream_next(grpc_exec_ctx *exec_ctx,
-                          grpc_byte_stream *byte_stream, gpr_slice *slice,
+                          grpc_byte_stream *byte_stream, grpc_slice *slice,
                           size_t max_size_hint, grpc_closure *on_complete);
 
 void grpc_byte_stream_destroy(grpc_exec_ctx *exec_ctx,
@@ -74,12 +74,12 @@
 /* grpc_byte_stream that wraps a slice buffer */
 typedef struct grpc_slice_buffer_stream {
   grpc_byte_stream base;
-  gpr_slice_buffer *backing_buffer;
+  grpc_slice_buffer *backing_buffer;
   size_t cursor;
 } grpc_slice_buffer_stream;
 
 void grpc_slice_buffer_stream_init(grpc_slice_buffer_stream *stream,
-                                   gpr_slice_buffer *slice_buffer,
+                                   grpc_slice_buffer *slice_buffer,
                                    uint32_t flags);
 
 #endif /* GRPC_CORE_LIB_TRANSPORT_BYTE_STREAM_H */
diff --git a/src/core/lib/transport/metadata.c b/src/core/lib/transport/metadata.c
index 4b40c27..a1748c0 100644
--- a/src/core/lib/transport/metadata.c
+++ b/src/core/lib/transport/metadata.c
@@ -51,7 +51,7 @@
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/transport/static_metadata.h"
 
-gpr_slice (*grpc_chttp2_base64_encode_and_huffman_compress)(gpr_slice input);
+grpc_slice (*grpc_chttp2_base64_encode_and_huffman_compress)(grpc_slice input);
 
 /* There are two kinds of mdelem and mdstr instances.
  * Static instances are declared in static_metadata.{h,c} and
@@ -85,16 +85,16 @@
 /* Shadow structure for grpc_mdstr for non-static values */
 typedef struct internal_string {
   /* must be byte compatible with grpc_mdstr */
-  gpr_slice slice;
+  grpc_slice slice;
   uint32_t hash;
 
   /* private only data */
   gpr_atm refcnt;
 
   uint8_t has_base64_and_huffman_encoded;
-  gpr_slice_refcount refcount;
+  grpc_slice_refcount refcount;
 
-  gpr_slice base64_and_huffman;
+  grpc_slice base64_and_huffman;
 
   gpr_atm size_in_decoder_table;
 
@@ -174,7 +174,7 @@
     grpc_mdstr *elem = &grpc_static_mdstr_table[i];
     const char *str = grpc_static_metadata_strings[i];
     uint32_t hash = gpr_murmur_hash3(str, strlen(str), g_hash_seed);
-    *(gpr_slice *)&elem->slice = gpr_slice_from_static_string(str);
+    *(grpc_slice *)&elem->slice = grpc_slice_from_static_string(str);
     *(uint32_t *)&elem->hash = hash;
     for (j = 0;; j++) {
       size_t idx = (hash + j) % GPR_ARRAY_SIZE(g_static_strtab);
@@ -321,7 +321,7 @@
   internal_string *cur;
   GPR_TIMER_BEGIN("internal_destroy_string", 0);
   if (is->has_base64_and_huffman_encoded) {
-    gpr_slice_unref(is->base64_and_huffman);
+    grpc_slice_unref(is->base64_and_huffman);
   }
   for (prev_next = &shard->strs[TABLE_IDX(is->hash, LOG2_STRTAB_SHARD_COUNT,
                                           shard->capacity)],
@@ -350,10 +350,10 @@
   return grpc_mdstr_from_buffer((const uint8_t *)str, strlen(str));
 }
 
-grpc_mdstr *grpc_mdstr_from_slice(gpr_slice slice) {
-  grpc_mdstr *result = grpc_mdstr_from_buffer(GPR_SLICE_START_PTR(slice),
-                                              GPR_SLICE_LENGTH(slice));
-  gpr_slice_unref(slice);
+grpc_mdstr *grpc_mdstr_from_slice(grpc_slice slice) {
+  grpc_mdstr *result = grpc_mdstr_from_buffer(GRPC_SLICE_START_PTR(slice),
+                                              GRPC_SLICE_LENGTH(slice));
+  grpc_slice_unref(slice);
   return result;
 }
 
@@ -373,9 +373,9 @@
     idx = (hash + i) % GPR_ARRAY_SIZE(g_static_strtab);
     ss = g_static_strtab[idx];
     if (ss == NULL) break;
-    if (ss->hash == hash && GPR_SLICE_LENGTH(ss->slice) == length &&
+    if (ss->hash == hash && GRPC_SLICE_LENGTH(ss->slice) == length &&
         (length == 0 ||
-         0 == memcmp(buf, GPR_SLICE_START_PTR(ss->slice), length))) {
+         0 == memcmp(buf, GRPC_SLICE_START_PTR(ss->slice), length))) {
       GPR_TIMER_END("grpc_mdstr_from_buffer", 0);
       return ss;
     }
@@ -386,8 +386,8 @@
   /* search for an existing string */
   idx = TABLE_IDX(hash, LOG2_STRTAB_SHARD_COUNT, shard->capacity);
   for (s = shard->strs[idx]; s; s = s->bucket_next) {
-    if (s->hash == hash && GPR_SLICE_LENGTH(s->slice) == length &&
-        0 == memcmp(buf, GPR_SLICE_START_PTR(s->slice), length)) {
+    if (s->hash == hash && GRPC_SLICE_LENGTH(s->slice) == length &&
+        0 == memcmp(buf, GRPC_SLICE_START_PTR(s->slice), length)) {
       if (gpr_atm_full_fetch_add(&s->refcnt, 1) == 0) {
         /* If we get here, we've added a ref to something that was about to
          * die - drop it immediately.
@@ -404,7 +404,7 @@
   }
 
   /* not found: create a new string */
-  if (length + 1 < GPR_SLICE_INLINED_SIZE) {
+  if (length + 1 < GRPC_SLICE_INLINED_SIZE) {
     /* string data goes directly into the slice */
     s = gpr_malloc(sizeof(internal_string));
     gpr_atm_rel_store(&s->refcnt, 1);
@@ -589,7 +589,7 @@
                                            grpc_mdstr_from_string(value));
 }
 
-grpc_mdelem *grpc_mdelem_from_slices(gpr_slice key, gpr_slice value) {
+grpc_mdelem *grpc_mdelem_from_slices(grpc_slice key, grpc_slice value) {
   return grpc_mdelem_from_metadata_strings(grpc_mdstr_from_slice(key),
                                            grpc_mdstr_from_slice(value));
 }
@@ -607,12 +607,12 @@
 }
 
 size_t grpc_mdelem_get_size_in_hpack_table(grpc_mdelem *elem) {
-  size_t overhead_and_key = 32 + GPR_SLICE_LENGTH(elem->key->slice);
-  size_t value_len = GPR_SLICE_LENGTH(elem->value->slice);
+  size_t overhead_and_key = 32 + GRPC_SLICE_LENGTH(elem->key->slice);
+  size_t value_len = GRPC_SLICE_LENGTH(elem->value->slice);
   if (is_mdstr_static(elem->value)) {
     if (grpc_is_binary_header(
-            (const char *)GPR_SLICE_START_PTR(elem->key->slice),
-            GPR_SLICE_LENGTH(elem->key->slice))) {
+            (const char *)GRPC_SLICE_START_PTR(elem->key->slice),
+            GRPC_SLICE_LENGTH(elem->key->slice))) {
       return overhead_and_key + get_base64_encoded_size(value_len);
     } else {
       return overhead_and_key + value_len;
@@ -622,8 +622,8 @@
     gpr_atm current_size = gpr_atm_acq_load(&is->size_in_decoder_table);
     if (current_size == SIZE_IN_DECODER_TABLE_NOT_SET) {
       if (grpc_is_binary_header(
-              (const char *)GPR_SLICE_START_PTR(elem->key->slice),
-              GPR_SLICE_LENGTH(elem->key->slice))) {
+              (const char *)GRPC_SLICE_START_PTR(elem->key->slice),
+              GRPC_SLICE_LENGTH(elem->key->slice))) {
         current_size = (gpr_atm)get_base64_encoded_size(value_len);
       } else {
         current_size = (gpr_atm)value_len;
@@ -679,7 +679,7 @@
 }
 
 const char *grpc_mdstr_as_c_string(const grpc_mdstr *s) {
-  return (const char *)GPR_SLICE_START_PTR(s->slice);
+  return (const char *)GRPC_SLICE_START_PTR(s->slice);
 }
 
 size_t grpc_mdstr_length(const grpc_mdstr *s) { return GRPC_MDSTR_LENGTH(s); }
@@ -737,9 +737,9 @@
   gpr_mu_unlock(&im->mu_user_data);
 }
 
-gpr_slice grpc_mdstr_as_base64_encoded_and_huffman_compressed(grpc_mdstr *gs) {
+grpc_slice grpc_mdstr_as_base64_encoded_and_huffman_compressed(grpc_mdstr *gs) {
   internal_string *s = (internal_string *)gs;
-  gpr_slice slice;
+  grpc_slice slice;
   strtab_shard *shard =
       &g_strtab_shard[SHARD_IDX(s->hash, LOG2_STRTAB_SHARD_COUNT)];
   gpr_mu_lock(&shard->mu);
diff --git a/src/core/lib/transport/metadata.h b/src/core/lib/transport/metadata.h
index 71eff0a..8dcfbb9 100644
--- a/src/core/lib/transport/metadata.h
+++ b/src/core/lib/transport/metadata.h
@@ -34,7 +34,7 @@
 #ifndef GRPC_CORE_LIB_TRANSPORT_METADATA_H
 #define GRPC_CORE_LIB_TRANSPORT_METADATA_H
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include <grpc/support/useful.h>
 
 #ifdef __cplusplus
@@ -77,7 +77,7 @@
 
 /* if changing this, make identical changes in internal_string in metadata.c */
 struct grpc_mdstr {
-  const gpr_slice slice;
+  const grpc_slice slice;
   const uint32_t hash;
   /* there is a private part to this in metadata.c */
 };
@@ -96,12 +96,12 @@
    clients may have handy */
 grpc_mdstr *grpc_mdstr_from_string(const char *str);
 /* Unrefs the slice. */
-grpc_mdstr *grpc_mdstr_from_slice(gpr_slice slice);
+grpc_mdstr *grpc_mdstr_from_slice(grpc_slice slice);
 grpc_mdstr *grpc_mdstr_from_buffer(const uint8_t *str, size_t length);
 
 /* Returns a borrowed slice from the mdstr with its contents base64 encoded
    and huffman compressed */
-gpr_slice grpc_mdstr_as_base64_encoded_and_huffman_compressed(grpc_mdstr *str);
+grpc_slice grpc_mdstr_as_base64_encoded_and_huffman_compressed(grpc_mdstr *str);
 
 /* Constructors for grpc_mdelem instances; take a variety of data types that
    clients may have handy */
@@ -109,7 +109,7 @@
                                                grpc_mdstr *value);
 grpc_mdelem *grpc_mdelem_from_strings(const char *key, const char *value);
 /* Unrefs the slices. */
-grpc_mdelem *grpc_mdelem_from_slices(gpr_slice key, gpr_slice value);
+grpc_mdelem *grpc_mdelem_from_slices(grpc_slice key, grpc_slice value);
 grpc_mdelem *grpc_mdelem_from_string_and_buffer(const char *key,
                                                 const uint8_t *value,
                                                 size_t value_length);
@@ -149,7 +149,7 @@
    Does not promise that the returned string has no embedded nulls however. */
 const char *grpc_mdstr_as_c_string(const grpc_mdstr *s);
 
-#define GRPC_MDSTR_LENGTH(s) (GPR_SLICE_LENGTH(s->slice))
+#define GRPC_MDSTR_LENGTH(s) (GRPC_SLICE_LENGTH(s->slice))
 
 /* We add 32 bytes of padding as per RFC-7540 section 6.5.2. */
 #define GRPC_MDELEM_LENGTH(e) \
@@ -165,8 +165,8 @@
 void grpc_mdctx_global_shutdown(void);
 
 /* Implementation provided by chttp2_transport */
-extern gpr_slice (*grpc_chttp2_base64_encode_and_huffman_compress)(
-    gpr_slice input);
+extern grpc_slice (*grpc_chttp2_base64_encode_and_huffman_compress)(
+    grpc_slice input);
 
 #ifdef __cplusplus
 }
diff --git a/src/core/lib/transport/metadata_batch.h b/src/core/lib/transport/metadata_batch.h
index 0424b4d..7a9ccb4 100644
--- a/src/core/lib/transport/metadata_batch.h
+++ b/src/core/lib/transport/metadata_batch.h
@@ -37,8 +37,8 @@
 #include <stdbool.h>
 
 #include <grpc/grpc.h>
+#include <grpc/slice.h>
 #include <grpc/support/port_platform.h>
-#include <grpc/support/slice.h>
 #include <grpc/support/time.h>
 #include "src/core/lib/transport/metadata.h"
 
diff --git a/src/core/lib/transport/transport.c b/src/core/lib/transport/transport.c
index 75aec7a..866cd9e 100644
--- a/src/core/lib/transport/transport.c
+++ b/src/core/lib/transport/transport.c
@@ -40,6 +40,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/transport/transport_impl.h"
 
@@ -207,21 +208,21 @@
 
 void grpc_transport_stream_op_add_cancellation_with_message(
     grpc_transport_stream_op *op, grpc_status_code status,
-    gpr_slice *optional_message) {
+    grpc_slice *optional_message) {
   GPR_ASSERT(status != GRPC_STATUS_OK);
   if (op->cancel_error != GRPC_ERROR_NONE) {
     if (optional_message) {
-      gpr_slice_unref(*optional_message);
+      grpc_slice_unref(*optional_message);
     }
     return;
   }
   grpc_error *error;
   if (optional_message != NULL) {
-    char *msg = gpr_dump_slice(*optional_message, GPR_DUMP_ASCII);
+    char *msg = grpc_dump_slice(*optional_message, GPR_DUMP_ASCII);
     error = grpc_error_set_str(GRPC_ERROR_CREATE(msg),
                                GRPC_ERROR_STR_GRPC_MESSAGE, msg);
     gpr_free(msg);
-    gpr_slice_unref(*optional_message);
+    grpc_slice_unref(*optional_message);
   } else {
     error = GRPC_ERROR_CREATE("Call cancelled");
   }
@@ -231,22 +232,22 @@
 
 void grpc_transport_stream_op_add_close(grpc_transport_stream_op *op,
                                         grpc_status_code status,
-                                        gpr_slice *optional_message) {
+                                        grpc_slice *optional_message) {
   GPR_ASSERT(status != GRPC_STATUS_OK);
   if (op->cancel_error != GRPC_ERROR_NONE ||
       op->close_error != GRPC_ERROR_NONE) {
     if (optional_message) {
-      gpr_slice_unref(*optional_message);
+      grpc_slice_unref(*optional_message);
     }
     return;
   }
   grpc_error *error;
   if (optional_message != NULL) {
-    char *msg = gpr_dump_slice(*optional_message, GPR_DUMP_ASCII);
+    char *msg = grpc_dump_slice(*optional_message, GPR_DUMP_ASCII);
     error = grpc_error_set_str(GRPC_ERROR_CREATE(msg),
                                GRPC_ERROR_STR_GRPC_MESSAGE, msg);
     gpr_free(msg);
-    gpr_slice_unref(*optional_message);
+    grpc_slice_unref(*optional_message);
   } else {
     error = GRPC_ERROR_CREATE("Call force closed");
   }
diff --git a/src/core/lib/transport/transport.h b/src/core/lib/transport/transport.h
index 50253eb..8916b28 100644
--- a/src/core/lib/transport/transport.h
+++ b/src/core/lib/transport/transport.h
@@ -181,7 +181,7 @@
   bool send_goaway;
   /** what should the goaway contain? */
   grpc_status_code goaway_status;
-  gpr_slice *goaway_message;
+  grpc_slice *goaway_message;
   /** set the callback for accepting new streams;
       this is a permanent callback, unlike the other one-shot closures.
       If true, the callback is set to set_accept_stream_fn, with its
@@ -249,11 +249,11 @@
 
 void grpc_transport_stream_op_add_cancellation_with_message(
     grpc_transport_stream_op *op, grpc_status_code status,
-    gpr_slice *optional_message);
+    grpc_slice *optional_message);
 
 void grpc_transport_stream_op_add_close(grpc_transport_stream_op *op,
                                         grpc_status_code status,
-                                        gpr_slice *optional_message);
+                                        grpc_slice *optional_message);
 
 char *grpc_transport_stream_op_string(grpc_transport_stream_op *op);
 char *grpc_transport_op_string(grpc_transport_op *op);
@@ -283,7 +283,7 @@
 
 /* Advise peer of pending connection termination. */
 void grpc_transport_goaway(grpc_transport *transport, grpc_status_code status,
-                           gpr_slice debug_data);
+                           grpc_slice debug_data);
 
 /* Close a transport. Aborts all open streams. */
 void grpc_transport_close(grpc_transport *transport);
diff --git a/src/core/lib/transport/transport_op_string.c b/src/core/lib/transport/transport_op_string.c
index 533ec52..58d6ad5 100644
--- a/src/core/lib/transport/transport_op_string.c
+++ b/src/core/lib/transport/transport_op_string.c
@@ -40,6 +40,7 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/transport/connectivity_state.h"
 
@@ -48,12 +49,12 @@
 
 static void put_metadata(gpr_strvec *b, grpc_mdelem *md) {
   gpr_strvec_add(b, gpr_strdup("key="));
-  gpr_strvec_add(b,
-                 gpr_dump_slice(md->key->slice, GPR_DUMP_HEX | GPR_DUMP_ASCII));
+  gpr_strvec_add(
+      b, grpc_dump_slice(md->key->slice, GPR_DUMP_HEX | GPR_DUMP_ASCII));
 
   gpr_strvec_add(b, gpr_strdup(" value="));
   gpr_strvec_add(
-      b, gpr_dump_slice(md->value->slice, GPR_DUMP_HEX | GPR_DUMP_ASCII));
+      b, grpc_dump_slice(md->value->slice, GPR_DUMP_HEX | GPR_DUMP_ASCII));
 }
 
 static void put_metadata_list(gpr_strvec *b, grpc_metadata_batch md) {
@@ -175,8 +176,8 @@
     first = false;
     char *msg = op->goaway_message == NULL
                     ? "null"
-                    : gpr_dump_slice(*op->goaway_message,
-                                     GPR_DUMP_ASCII | GPR_DUMP_HEX);
+                    : grpc_dump_slice(*op->goaway_message,
+                                      GPR_DUMP_ASCII | GPR_DUMP_HEX);
     gpr_asprintf(&tmp, "SEND_GOAWAY:status=%d:msg=%s", op->goaway_status, msg);
     if (op->goaway_message != NULL) gpr_free(msg);
     gpr_strvec_add(&b, tmp);
diff --git a/src/cpp/client/channel_cc.cc b/src/cpp/client/channel_cc.cc
index 847c8c7..5f1d00d 100644
--- a/src/cpp/client/channel_cc.cc
+++ b/src/cpp/client/channel_cc.cc
@@ -47,8 +47,8 @@
 #include <grpc++/support/status.h>
 #include <grpc++/support/time.h>
 #include <grpc/grpc.h>
+#include <grpc/slice.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include "src/core/lib/profiling/timers.h"
 
 namespace grpc {
diff --git a/src/cpp/common/core_codegen.cc b/src/cpp/common/core_codegen.cc
index ce02202..a07ad54 100644
--- a/src/cpp/common/core_codegen.cc
+++ b/src/cpp/common/core_codegen.cc
@@ -39,11 +39,11 @@
 #include <grpc/byte_buffer.h>
 #include <grpc/byte_buffer_reader.h>
 #include <grpc/grpc.h>
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
-#include <grpc/support/slice.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/sync.h>
 
 #include "src/core/lib/profiling/timers.h"
@@ -102,31 +102,34 @@
 }
 
 int CoreCodegen::grpc_byte_buffer_reader_next(grpc_byte_buffer_reader* reader,
-                                              gpr_slice* slice) {
+                                              grpc_slice* slice) {
   return ::grpc_byte_buffer_reader_next(reader, slice);
 }
 
-grpc_byte_buffer* CoreCodegen::grpc_raw_byte_buffer_create(gpr_slice* slice,
+grpc_byte_buffer* CoreCodegen::grpc_raw_byte_buffer_create(grpc_slice* slice,
                                                            size_t nslices) {
   return ::grpc_raw_byte_buffer_create(slice, nslices);
 }
 
-gpr_slice CoreCodegen::gpr_slice_malloc(size_t length) {
-  return ::gpr_slice_malloc(length);
+grpc_slice CoreCodegen::grpc_slice_malloc(size_t length) {
+  return ::grpc_slice_malloc(length);
 }
 
-void CoreCodegen::gpr_slice_unref(gpr_slice slice) { ::gpr_slice_unref(slice); }
-
-gpr_slice CoreCodegen::gpr_slice_split_tail(gpr_slice* s, size_t split) {
-  return ::gpr_slice_split_tail(s, split);
+void CoreCodegen::grpc_slice_unref(grpc_slice slice) {
+  ::grpc_slice_unref(slice);
 }
 
-void CoreCodegen::gpr_slice_buffer_add(gpr_slice_buffer* sb, gpr_slice slice) {
-  ::gpr_slice_buffer_add(sb, slice);
+grpc_slice CoreCodegen::grpc_slice_split_tail(grpc_slice* s, size_t split) {
+  return ::grpc_slice_split_tail(s, split);
 }
 
-void CoreCodegen::gpr_slice_buffer_pop(gpr_slice_buffer* sb) {
-  ::gpr_slice_buffer_pop(sb);
+void CoreCodegen::grpc_slice_buffer_add(grpc_slice_buffer* sb,
+                                        grpc_slice slice) {
+  ::grpc_slice_buffer_add(sb, slice);
+}
+
+void CoreCodegen::grpc_slice_buffer_pop(grpc_slice_buffer* sb) {
+  ::grpc_slice_buffer_pop(sb);
 }
 
 void CoreCodegen::grpc_metadata_array_init(grpc_metadata_array* array) {
diff --git a/src/cpp/util/byte_buffer_cc.cc b/src/cpp/util/byte_buffer_cc.cc
index 91ed66b..cbe0aad 100644
--- a/src/cpp/util/byte_buffer_cc.cc
+++ b/src/cpp/util/byte_buffer_cc.cc
@@ -38,18 +38,18 @@
 
 ByteBuffer::ByteBuffer(const Slice* slices, size_t nslices) {
   // The following assertions check that the representation of a grpc::Slice is
-  // identical to that of a gpr_slice:  it has a gpr_slice field, and nothing
+  // identical to that of a grpc_slice:  it has a grpc_slice field, and nothing
   // else.
-  static_assert(std::is_same<decltype(slices[0].slice_), gpr_slice>::value,
-                "Slice must have same representation as gpr_slice");
-  static_assert(sizeof(Slice) == sizeof(gpr_slice),
-                "Slice must have same representation as gpr_slice");
+  static_assert(std::is_same<decltype(slices[0].slice_), grpc_slice>::value,
+                "Slice must have same representation as grpc_slice");
+  static_assert(sizeof(Slice) == sizeof(grpc_slice),
+                "Slice must have same representation as grpc_slice");
   // The const_cast is legal if grpc_raw_byte_buffer_create() does no more
   // than its advertised side effect of increasing the reference count of the
   // slices it processes, and such an increase does not affect the semantics
   // seen by the caller of this constructor.
   buffer_ = grpc_raw_byte_buffer_create(
-      reinterpret_cast<gpr_slice*>(const_cast<Slice*>(slices)), nslices);
+      reinterpret_cast<grpc_slice*>(const_cast<Slice*>(slices)), nslices);
 }
 
 ByteBuffer::~ByteBuffer() {
@@ -75,7 +75,7 @@
     return Status(StatusCode::INTERNAL,
                   "Couldn't initialize byte buffer reader");
   }
-  gpr_slice s;
+  grpc_slice s;
   while (grpc_byte_buffer_reader_next(&reader, &s)) {
     slices->push_back(Slice(s, Slice::STEAL_REF));
   }
diff --git a/src/cpp/util/slice_cc.cc b/src/cpp/util/slice_cc.cc
index 7e88423..c05f1cf 100644
--- a/src/cpp/util/slice_cc.cc
+++ b/src/cpp/util/slice_cc.cc
@@ -37,12 +37,12 @@
 
 Slice::Slice() : slice_(gpr_empty_slice()) {}
 
-Slice::~Slice() { gpr_slice_unref(slice_); }
+Slice::~Slice() { grpc_slice_unref(slice_); }
 
-Slice::Slice(gpr_slice slice, AddRef) : slice_(gpr_slice_ref(slice)) {}
+Slice::Slice(grpc_slice slice, AddRef) : slice_(grpc_slice_ref(slice)) {}
 
-Slice::Slice(gpr_slice slice, StealRef) : slice_(slice) {}
+Slice::Slice(grpc_slice slice, StealRef) : slice_(slice) {}
 
-Slice::Slice(const Slice& other) : slice_(gpr_slice_ref(other.slice_)) {}
+Slice::Slice(const Slice& other) : slice_(grpc_slice_ref(other.slice_)) {}
 
 }  // namespace grpc
diff --git a/src/csharp/ext/grpc_csharp_ext.c b/src/csharp/ext/grpc_csharp_ext.c
index 9a5d786..0bf5b0a 100644
--- a/src/csharp/ext/grpc_csharp_ext.c
+++ b/src/csharp/ext/grpc_csharp_ext.c
@@ -37,7 +37,7 @@
 #include <grpc/support/port_platform.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/thd.h>
 #include <grpc/grpc.h>
@@ -59,9 +59,9 @@
 #endif
 
 grpc_byte_buffer *string_to_byte_buffer(const char *buffer, size_t len) {
-  gpr_slice slice = gpr_slice_from_copied_buffer(buffer, len);
+  grpc_slice slice = grpc_slice_from_copied_buffer(buffer, len);
   grpc_byte_buffer *bb = grpc_raw_byte_buffer_create(&slice, 1);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   return bb;
 }
 
@@ -282,18 +282,18 @@
 GPR_EXPORT void GPR_CALLTYPE grpcsharp_batch_context_recv_message_to_buffer(
     const grpcsharp_batch_context *ctx, char *buffer, size_t buffer_len) {
   grpc_byte_buffer_reader reader;
-  gpr_slice slice;
+  grpc_slice slice;
   size_t offset = 0;
 
   GPR_ASSERT(grpc_byte_buffer_reader_init(&reader, ctx->recv_message));
 
   while (grpc_byte_buffer_reader_next(&reader, &slice)) {
-    size_t len = GPR_SLICE_LENGTH(slice);
+    size_t len = GRPC_SLICE_LENGTH(slice);
     GPR_ASSERT(offset + len <= buffer_len);
-    memcpy(buffer + offset, GPR_SLICE_START_PTR(slice),
-           GPR_SLICE_LENGTH(slice));
+    memcpy(buffer + offset, GRPC_SLICE_START_PTR(slice),
+           GRPC_SLICE_LENGTH(slice));
     offset += len;
-    gpr_slice_unref(slice);
+    grpc_slice_unref(slice);
   }
 
   grpc_byte_buffer_reader_destroy(&reader);
diff --git a/src/node/ext/byte_buffer.cc b/src/node/ext/byte_buffer.cc
index ad7d0ec..017d796 100644
--- a/src/node/ext/byte_buffer.cc
+++ b/src/node/ext/byte_buffer.cc
@@ -56,10 +56,10 @@
   Nan::HandleScope scope;
   int length = ::node::Buffer::Length(buffer);
   char *data = ::node::Buffer::Data(buffer);
-  gpr_slice slice = gpr_slice_malloc(length);
-  memcpy(GPR_SLICE_START_PTR(slice), data, length);
+  grpc_slice slice = grpc_slice_malloc(length);
+  memcpy(GRPC_SLICE_START_PTR(slice), data, length);
   grpc_byte_buffer *byte_buffer(grpc_raw_byte_buffer_create(&slice, 1));
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   return byte_buffer;
 }
 
@@ -77,11 +77,11 @@
     Nan::ThrowError("Error initializing byte buffer reader.");
     return scope.Escape(Nan::Undefined());
   }
-  gpr_slice slice = grpc_byte_buffer_reader_readall(&reader);
-  size_t length = GPR_SLICE_LENGTH(slice);
+  grpc_slice slice = grpc_byte_buffer_reader_readall(&reader);
+  size_t length = GRPC_SLICE_LENGTH(slice);
   char *result = new char[length];
-  memcpy(result, GPR_SLICE_START_PTR(slice), length);
-  gpr_slice_unref(slice);
+  memcpy(result, GRPC_SLICE_START_PTR(slice), length);
+  grpc_slice_unref(slice);
   return scope.Escape(MakeFastBuffer(
       Nan::NewBuffer(result, length, delete_buffer, NULL).ToLocalChecked()));
 }
diff --git a/src/objective-c/GRPCClient/private/NSData+GRPC.m b/src/objective-c/GRPCClient/private/NSData+GRPC.m
index 9833779..6d2ad0a 100644
--- a/src/objective-c/GRPCClient/private/NSData+GRPC.m
+++ b/src/objective-c/GRPCClient/private/NSData+GRPC.m
@@ -53,22 +53,22 @@
   }
   // The slice contains uncompressed data even if compressed data was received
   // because the reader takes care of automatically decompressing it
-  gpr_slice slice = grpc_byte_buffer_reader_readall(&reader);
-  size_t uncompressed_length = GPR_SLICE_LENGTH(slice);
+  grpc_slice slice = grpc_byte_buffer_reader_readall(&reader);
+  size_t uncompressed_length = GRPC_SLICE_LENGTH(slice);
   char *result = malloc(uncompressed_length);
   if (result) {
-    memcpy(result, GPR_SLICE_START_PTR(slice), uncompressed_length);
+    memcpy(result, GRPC_SLICE_START_PTR(slice), uncompressed_length);
   }
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   *array = result;
   *length = uncompressed_length;
 }
 
 static grpc_byte_buffer *CopyCharArrayToNewByteBuffer(const char *array,
                                                       size_t length) {
-  gpr_slice slice = gpr_slice_from_copied_buffer(array, length);
+  grpc_slice slice = grpc_slice_from_copied_buffer(array, length);
   grpc_byte_buffer *buffer = grpc_raw_byte_buffer_create(&slice, 1);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   return buffer;
 }
 
@@ -97,9 +97,9 @@
   // appending of byte arrays by not using internally a single contiguous memory
   // block for representation.
   // The following implementation is thus not optimal, sometimes requiring two
-  // copies (one by self.bytes and another by gpr_slice_from_copied_buffer).
+  // copies (one by self.bytes and another by grpc_slice_from_copied_buffer).
   // If it turns out to be an issue, we can use enumerateByteRangesUsingblock:
-  // to create an array of gpr_slice objects to pass to
+  // to create an array of grpc_slice objects to pass to
   // grpc_raw_byte_buffer_create.
   // That would make it do exactly one copy, always.
   return CopyCharArrayToNewByteBuffer((const char *)self.bytes,
diff --git a/src/php/ext/grpc/byte_buffer.c b/src/php/ext/grpc/byte_buffer.c
index 3be1429..b026985 100644
--- a/src/php/ext/grpc/byte_buffer.c
+++ b/src/php/ext/grpc/byte_buffer.c
@@ -47,12 +47,12 @@
 
 #include <grpc/grpc.h>
 #include <grpc/byte_buffer_reader.h>
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 
 grpc_byte_buffer *string_to_byte_buffer(char *string, size_t length) {
-  gpr_slice slice = gpr_slice_from_copied_buffer(string, length);
+  grpc_slice slice = grpc_slice_from_copied_buffer(string, length);
   grpc_byte_buffer *buffer = grpc_raw_byte_buffer_create(&slice, 1);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   return buffer;
 }
 
@@ -66,11 +66,11 @@
     return;
   }
 
-  gpr_slice slice = grpc_byte_buffer_reader_readall(&reader);
-  size_t length = GPR_SLICE_LENGTH(slice);
+  grpc_slice slice = grpc_byte_buffer_reader_readall(&reader);
+  size_t length = GRPC_SLICE_LENGTH(slice);
   char *string = ecalloc(length + 1, sizeof(char));
-  memcpy(string, GPR_SLICE_START_PTR(slice), length);
-  gpr_slice_unref(slice);
+  memcpy(string, GRPC_SLICE_START_PTR(slice), length);
+  grpc_slice_unref(slice);
 
   *out_string = string;
   *out_length = length;
diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi
index 9560fad..ad76618 100644
--- a/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi
+++ b/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi
@@ -53,23 +53,23 @@
 
 cdef extern from "grpc/grpc.h":
 
-  ctypedef struct gpr_slice:
-    # don't worry about writing out the members of gpr_slice; we never access
+  ctypedef struct grpc_slice:
+    # don't worry about writing out the members of grpc_slice; we never access
     # them directly.
     pass
 
-  gpr_slice gpr_slice_ref(gpr_slice s) nogil
-  void gpr_slice_unref(gpr_slice s) nogil
-  gpr_slice gpr_slice_new(void *p, size_t len, void (*destroy)(void *)) nogil
-  gpr_slice gpr_slice_new_with_len(
+  grpc_slice grpc_slice_ref(grpc_slice s) nogil
+  void grpc_slice_unref(grpc_slice s) nogil
+  grpc_slice grpc_slice_new(void *p, size_t len, void (*destroy)(void *)) nogil
+  grpc_slice grpc_slice_new_with_len(
       void *p, size_t len, void (*destroy)(void *, size_t)) nogil
-  gpr_slice gpr_slice_malloc(size_t length) nogil
-  gpr_slice gpr_slice_from_copied_string(const char *source) nogil
-  gpr_slice gpr_slice_from_copied_buffer(const char *source, size_t len) nogil
+  grpc_slice grpc_slice_malloc(size_t length) nogil
+  grpc_slice grpc_slice_from_copied_string(const char *source) nogil
+  grpc_slice grpc_slice_from_copied_buffer(const char *source, size_t len) nogil
 
   # Declare functions for function-like macros (because Cython)...
-  void *gpr_slice_start_ptr "GPR_SLICE_START_PTR" (gpr_slice s) nogil
-  size_t gpr_slice_length "GPR_SLICE_LENGTH" (gpr_slice s) nogil
+  void *grpc_slice_start_ptr "GRPC_SLICE_START_PTR" (grpc_slice s) nogil
+  size_t grpc_slice_length "GRPC_SLICE_LENGTH" (grpc_slice s) nogil
 
   ctypedef enum gpr_clock_type:
     GPR_CLOCK_MONOTONIC
@@ -101,7 +101,7 @@
     # We don't care about the internals.
     pass
 
-  grpc_byte_buffer *grpc_raw_byte_buffer_create(gpr_slice *slices,
+  grpc_byte_buffer *grpc_raw_byte_buffer_create(grpc_slice *slices,
                                                 size_t nslices) nogil
   size_t grpc_byte_buffer_length(grpc_byte_buffer *bb) nogil
   void grpc_byte_buffer_destroy(grpc_byte_buffer *byte_buffer) nogil
@@ -109,7 +109,7 @@
   int grpc_byte_buffer_reader_init(grpc_byte_buffer_reader *reader,
                                    grpc_byte_buffer *buffer) nogil
   int grpc_byte_buffer_reader_next(grpc_byte_buffer_reader *reader,
-                                   gpr_slice *slice) nogil
+                                   grpc_slice *slice) nogil
   void grpc_byte_buffer_reader_destroy(grpc_byte_buffer_reader *reader) nogil
 
   ctypedef enum grpc_status_code:
diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/records.pyx.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/records.pyx.pxi
index 8a4eef4..cadfce6 100644
--- a/src/python/grpcio/grpc/_cython/_cygrpc/records.pyx.pxi
+++ b/src/python/grpcio/grpc/_cython/_cygrpc/records.pyx.pxi
@@ -242,19 +242,19 @@
       return
 
     cdef char *c_data = data
-    cdef gpr_slice data_slice
+    cdef grpc_slice data_slice
     cdef size_t data_length = len(data)
     with nogil:
-      data_slice = gpr_slice_from_copied_buffer(c_data, data_length)
+      data_slice = grpc_slice_from_copied_buffer(c_data, data_length)
     with nogil:
       self.c_byte_buffer = grpc_raw_byte_buffer_create(
           &data_slice, 1)
     with nogil:
-      gpr_slice_unref(data_slice)
+      grpc_slice_unref(data_slice)
 
   def bytes(self):
     cdef grpc_byte_buffer_reader reader
-    cdef gpr_slice data_slice
+    cdef grpc_slice data_slice
     cdef size_t data_slice_length
     cdef void *data_slice_pointer
     cdef bint reader_status
@@ -267,11 +267,11 @@
       result = bytearray()
       with nogil:
         while grpc_byte_buffer_reader_next(&reader, &data_slice):
-          data_slice_pointer = gpr_slice_start_ptr(data_slice)
-          data_slice_length = gpr_slice_length(data_slice)
+          data_slice_pointer = grpc_slice_start_ptr(data_slice)
+          data_slice_length = grpc_slice_length(data_slice)
           with gil:
             result += (<char *>data_slice_pointer)[:data_slice_length]
-          gpr_slice_unref(data_slice)
+          grpc_slice_unref(data_slice)
       with nogil:
         grpc_byte_buffer_reader_destroy(&reader)
       return bytes(result)
diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py
index 8f4b3bc..b004187 100644
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@@ -52,9 +52,6 @@
   'src/core/lib/support/log_windows.c',
   'src/core/lib/support/mpscq.c',
   'src/core/lib/support/murmur_hash.c',
-  'src/core/lib/support/percent_encoding.c',
-  'src/core/lib/support/slice.c',
-  'src/core/lib/support/slice_buffer.c',
   'src/core/lib/support/stack_lockfree.c',
   'src/core/lib/support/string.c',
   'src/core/lib/support/string_posix.c',
@@ -157,6 +154,10 @@
   'src/core/lib/json/json_reader.c',
   'src/core/lib/json/json_string.c',
   'src/core/lib/json/json_writer.c',
+  'src/core/lib/slice/percent_encoding.c',
+  'src/core/lib/slice/slice.c',
+  'src/core/lib/slice/slice_buffer.c',
+  'src/core/lib/slice/slice_string_helpers.c',
   'src/core/lib/surface/alarm.c',
   'src/core/lib/surface/api_trace.c',
   'src/core/lib/surface/byte_buffer.c',
diff --git a/src/ruby/ext/grpc/rb_byte_buffer.c b/src/ruby/ext/grpc/rb_byte_buffer.c
index 61b7c30..f97890e 100644
--- a/src/ruby/ext/grpc/rb_byte_buffer.c
+++ b/src/ruby/ext/grpc/rb_byte_buffer.c
@@ -38,20 +38,20 @@
 
 #include <grpc/grpc.h>
 #include <grpc/byte_buffer_reader.h>
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include "rb_grpc.h"
 
 grpc_byte_buffer* grpc_rb_s_to_byte_buffer(char *string, size_t length) {
-  gpr_slice slice = gpr_slice_from_copied_buffer(string, length);
+  grpc_slice slice = grpc_slice_from_copied_buffer(string, length);
   grpc_byte_buffer *buffer = grpc_raw_byte_buffer_create(&slice, 1);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   return buffer;
 }
 
 VALUE grpc_rb_byte_buffer_to_s(grpc_byte_buffer *buffer) {
   VALUE rb_string;
   grpc_byte_buffer_reader reader;
-  gpr_slice next;
+  grpc_slice next;
   if (buffer == NULL) {
     return Qnil;
   }
@@ -61,9 +61,9 @@
     return Qnil;
   }
   while (grpc_byte_buffer_reader_next(&reader, &next) != 0) {
-    rb_str_cat(rb_string, (const char *) GPR_SLICE_START_PTR(next),
-               GPR_SLICE_LENGTH(next));
-    gpr_slice_unref(next);
+    rb_str_cat(rb_string, (const char *) GRPC_SLICE_START_PTR(next),
+               GRPC_SLICE_LENGTH(next));
+    grpc_slice_unref(next);
   }
   return rb_string;
 }
diff --git a/src/ruby/ext/grpc/rb_grpc_imports.generated.c b/src/ruby/ext/grpc/rb_grpc_imports.generated.c
index fd73cc7..f4546bf 100644
--- a/src/ruby/ext/grpc/rb_grpc_imports.generated.c
+++ b/src/ruby/ext/grpc/rb_grpc_imports.generated.c
@@ -172,6 +172,35 @@
 grpc_server_add_secure_http2_port_type grpc_server_add_secure_http2_port_import;
 grpc_call_set_credentials_type grpc_call_set_credentials_import;
 grpc_server_credentials_set_auth_metadata_processor_type grpc_server_credentials_set_auth_metadata_processor_import;
+grpc_slice_ref_type grpc_slice_ref_import;
+grpc_slice_unref_type grpc_slice_unref_import;
+grpc_slice_new_type grpc_slice_new_import;
+grpc_slice_new_with_user_data_type grpc_slice_new_with_user_data_import;
+grpc_slice_new_with_len_type grpc_slice_new_with_len_import;
+grpc_slice_malloc_type grpc_slice_malloc_import;
+grpc_slice_from_copied_string_type grpc_slice_from_copied_string_import;
+grpc_slice_from_copied_buffer_type grpc_slice_from_copied_buffer_import;
+grpc_slice_from_static_string_type grpc_slice_from_static_string_import;
+grpc_slice_sub_type grpc_slice_sub_import;
+grpc_slice_sub_no_ref_type grpc_slice_sub_no_ref_import;
+grpc_slice_split_tail_type grpc_slice_split_tail_import;
+grpc_slice_split_head_type grpc_slice_split_head_import;
+gpr_empty_slice_type gpr_empty_slice_import;
+grpc_slice_cmp_type grpc_slice_cmp_import;
+grpc_slice_str_cmp_type grpc_slice_str_cmp_import;
+grpc_slice_buffer_init_type grpc_slice_buffer_init_import;
+grpc_slice_buffer_destroy_type grpc_slice_buffer_destroy_import;
+grpc_slice_buffer_add_type grpc_slice_buffer_add_import;
+grpc_slice_buffer_add_indexed_type grpc_slice_buffer_add_indexed_import;
+grpc_slice_buffer_addn_type grpc_slice_buffer_addn_import;
+grpc_slice_buffer_tiny_add_type grpc_slice_buffer_tiny_add_import;
+grpc_slice_buffer_pop_type grpc_slice_buffer_pop_import;
+grpc_slice_buffer_reset_and_unref_type grpc_slice_buffer_reset_and_unref_import;
+grpc_slice_buffer_swap_type grpc_slice_buffer_swap_import;
+grpc_slice_buffer_move_into_type grpc_slice_buffer_move_into_import;
+grpc_slice_buffer_trim_end_type grpc_slice_buffer_trim_end_import;
+grpc_slice_buffer_move_first_type grpc_slice_buffer_move_first_import;
+grpc_slice_buffer_take_first_type grpc_slice_buffer_take_first_import;
 gpr_malloc_type gpr_malloc_import;
 gpr_free_type gpr_free_import;
 gpr_realloc_type gpr_realloc_import;
@@ -221,35 +250,6 @@
 gpr_log_verbosity_init_type gpr_log_verbosity_init_import;
 gpr_set_log_function_type gpr_set_log_function_import;
 gpr_format_message_type gpr_format_message_import;
-gpr_slice_ref_type gpr_slice_ref_import;
-gpr_slice_unref_type gpr_slice_unref_import;
-gpr_slice_new_type gpr_slice_new_import;
-gpr_slice_new_with_user_data_type gpr_slice_new_with_user_data_import;
-gpr_slice_new_with_len_type gpr_slice_new_with_len_import;
-gpr_slice_malloc_type gpr_slice_malloc_import;
-gpr_slice_from_copied_string_type gpr_slice_from_copied_string_import;
-gpr_slice_from_copied_buffer_type gpr_slice_from_copied_buffer_import;
-gpr_slice_from_static_string_type gpr_slice_from_static_string_import;
-gpr_slice_sub_type gpr_slice_sub_import;
-gpr_slice_sub_no_ref_type gpr_slice_sub_no_ref_import;
-gpr_slice_split_tail_type gpr_slice_split_tail_import;
-gpr_slice_split_head_type gpr_slice_split_head_import;
-gpr_empty_slice_type gpr_empty_slice_import;
-gpr_slice_cmp_type gpr_slice_cmp_import;
-gpr_slice_str_cmp_type gpr_slice_str_cmp_import;
-gpr_slice_buffer_init_type gpr_slice_buffer_init_import;
-gpr_slice_buffer_destroy_type gpr_slice_buffer_destroy_import;
-gpr_slice_buffer_add_type gpr_slice_buffer_add_import;
-gpr_slice_buffer_add_indexed_type gpr_slice_buffer_add_indexed_import;
-gpr_slice_buffer_addn_type gpr_slice_buffer_addn_import;
-gpr_slice_buffer_tiny_add_type gpr_slice_buffer_tiny_add_import;
-gpr_slice_buffer_pop_type gpr_slice_buffer_pop_import;
-gpr_slice_buffer_reset_and_unref_type gpr_slice_buffer_reset_and_unref_import;
-gpr_slice_buffer_swap_type gpr_slice_buffer_swap_import;
-gpr_slice_buffer_move_into_type gpr_slice_buffer_move_into_import;
-gpr_slice_buffer_trim_end_type gpr_slice_buffer_trim_end_import;
-gpr_slice_buffer_move_first_type gpr_slice_buffer_move_first_import;
-gpr_slice_buffer_take_first_type gpr_slice_buffer_take_first_import;
 gpr_strdup_type gpr_strdup_import;
 gpr_asprintf_type gpr_asprintf_import;
 gpr_subprocess_binary_extension_type gpr_subprocess_binary_extension_import;
@@ -446,6 +446,35 @@
   grpc_server_add_secure_http2_port_import = (grpc_server_add_secure_http2_port_type) GetProcAddress(library, "grpc_server_add_secure_http2_port");
   grpc_call_set_credentials_import = (grpc_call_set_credentials_type) GetProcAddress(library, "grpc_call_set_credentials");
   grpc_server_credentials_set_auth_metadata_processor_import = (grpc_server_credentials_set_auth_metadata_processor_type) GetProcAddress(library, "grpc_server_credentials_set_auth_metadata_processor");
+  grpc_slice_ref_import = (grpc_slice_ref_type) GetProcAddress(library, "grpc_slice_ref");
+  grpc_slice_unref_import = (grpc_slice_unref_type) GetProcAddress(library, "grpc_slice_unref");
+  grpc_slice_new_import = (grpc_slice_new_type) GetProcAddress(library, "grpc_slice_new");
+  grpc_slice_new_with_user_data_import = (grpc_slice_new_with_user_data_type) GetProcAddress(library, "grpc_slice_new_with_user_data");
+  grpc_slice_new_with_len_import = (grpc_slice_new_with_len_type) GetProcAddress(library, "grpc_slice_new_with_len");
+  grpc_slice_malloc_import = (grpc_slice_malloc_type) GetProcAddress(library, "grpc_slice_malloc");
+  grpc_slice_from_copied_string_import = (grpc_slice_from_copied_string_type) GetProcAddress(library, "grpc_slice_from_copied_string");
+  grpc_slice_from_copied_buffer_import = (grpc_slice_from_copied_buffer_type) GetProcAddress(library, "grpc_slice_from_copied_buffer");
+  grpc_slice_from_static_string_import = (grpc_slice_from_static_string_type) GetProcAddress(library, "grpc_slice_from_static_string");
+  grpc_slice_sub_import = (grpc_slice_sub_type) GetProcAddress(library, "grpc_slice_sub");
+  grpc_slice_sub_no_ref_import = (grpc_slice_sub_no_ref_type) GetProcAddress(library, "grpc_slice_sub_no_ref");
+  grpc_slice_split_tail_import = (grpc_slice_split_tail_type) GetProcAddress(library, "grpc_slice_split_tail");
+  grpc_slice_split_head_import = (grpc_slice_split_head_type) GetProcAddress(library, "grpc_slice_split_head");
+  gpr_empty_slice_import = (gpr_empty_slice_type) GetProcAddress(library, "gpr_empty_slice");
+  grpc_slice_cmp_import = (grpc_slice_cmp_type) GetProcAddress(library, "grpc_slice_cmp");
+  grpc_slice_str_cmp_import = (grpc_slice_str_cmp_type) GetProcAddress(library, "grpc_slice_str_cmp");
+  grpc_slice_buffer_init_import = (grpc_slice_buffer_init_type) GetProcAddress(library, "grpc_slice_buffer_init");
+  grpc_slice_buffer_destroy_import = (grpc_slice_buffer_destroy_type) GetProcAddress(library, "grpc_slice_buffer_destroy");
+  grpc_slice_buffer_add_import = (grpc_slice_buffer_add_type) GetProcAddress(library, "grpc_slice_buffer_add");
+  grpc_slice_buffer_add_indexed_import = (grpc_slice_buffer_add_indexed_type) GetProcAddress(library, "grpc_slice_buffer_add_indexed");
+  grpc_slice_buffer_addn_import = (grpc_slice_buffer_addn_type) GetProcAddress(library, "grpc_slice_buffer_addn");
+  grpc_slice_buffer_tiny_add_import = (grpc_slice_buffer_tiny_add_type) GetProcAddress(library, "grpc_slice_buffer_tiny_add");
+  grpc_slice_buffer_pop_import = (grpc_slice_buffer_pop_type) GetProcAddress(library, "grpc_slice_buffer_pop");
+  grpc_slice_buffer_reset_and_unref_import = (grpc_slice_buffer_reset_and_unref_type) GetProcAddress(library, "grpc_slice_buffer_reset_and_unref");
+  grpc_slice_buffer_swap_import = (grpc_slice_buffer_swap_type) GetProcAddress(library, "grpc_slice_buffer_swap");
+  grpc_slice_buffer_move_into_import = (grpc_slice_buffer_move_into_type) GetProcAddress(library, "grpc_slice_buffer_move_into");
+  grpc_slice_buffer_trim_end_import = (grpc_slice_buffer_trim_end_type) GetProcAddress(library, "grpc_slice_buffer_trim_end");
+  grpc_slice_buffer_move_first_import = (grpc_slice_buffer_move_first_type) GetProcAddress(library, "grpc_slice_buffer_move_first");
+  grpc_slice_buffer_take_first_import = (grpc_slice_buffer_take_first_type) GetProcAddress(library, "grpc_slice_buffer_take_first");
   gpr_malloc_import = (gpr_malloc_type) GetProcAddress(library, "gpr_malloc");
   gpr_free_import = (gpr_free_type) GetProcAddress(library, "gpr_free");
   gpr_realloc_import = (gpr_realloc_type) GetProcAddress(library, "gpr_realloc");
@@ -495,35 +524,6 @@
   gpr_log_verbosity_init_import = (gpr_log_verbosity_init_type) GetProcAddress(library, "gpr_log_verbosity_init");
   gpr_set_log_function_import = (gpr_set_log_function_type) GetProcAddress(library, "gpr_set_log_function");
   gpr_format_message_import = (gpr_format_message_type) GetProcAddress(library, "gpr_format_message");
-  gpr_slice_ref_import = (gpr_slice_ref_type) GetProcAddress(library, "gpr_slice_ref");
-  gpr_slice_unref_import = (gpr_slice_unref_type) GetProcAddress(library, "gpr_slice_unref");
-  gpr_slice_new_import = (gpr_slice_new_type) GetProcAddress(library, "gpr_slice_new");
-  gpr_slice_new_with_user_data_import = (gpr_slice_new_with_user_data_type) GetProcAddress(library, "gpr_slice_new_with_user_data");
-  gpr_slice_new_with_len_import = (gpr_slice_new_with_len_type) GetProcAddress(library, "gpr_slice_new_with_len");
-  gpr_slice_malloc_import = (gpr_slice_malloc_type) GetProcAddress(library, "gpr_slice_malloc");
-  gpr_slice_from_copied_string_import = (gpr_slice_from_copied_string_type) GetProcAddress(library, "gpr_slice_from_copied_string");
-  gpr_slice_from_copied_buffer_import = (gpr_slice_from_copied_buffer_type) GetProcAddress(library, "gpr_slice_from_copied_buffer");
-  gpr_slice_from_static_string_import = (gpr_slice_from_static_string_type) GetProcAddress(library, "gpr_slice_from_static_string");
-  gpr_slice_sub_import = (gpr_slice_sub_type) GetProcAddress(library, "gpr_slice_sub");
-  gpr_slice_sub_no_ref_import = (gpr_slice_sub_no_ref_type) GetProcAddress(library, "gpr_slice_sub_no_ref");
-  gpr_slice_split_tail_import = (gpr_slice_split_tail_type) GetProcAddress(library, "gpr_slice_split_tail");
-  gpr_slice_split_head_import = (gpr_slice_split_head_type) GetProcAddress(library, "gpr_slice_split_head");
-  gpr_empty_slice_import = (gpr_empty_slice_type) GetProcAddress(library, "gpr_empty_slice");
-  gpr_slice_cmp_import = (gpr_slice_cmp_type) GetProcAddress(library, "gpr_slice_cmp");
-  gpr_slice_str_cmp_import = (gpr_slice_str_cmp_type) GetProcAddress(library, "gpr_slice_str_cmp");
-  gpr_slice_buffer_init_import = (gpr_slice_buffer_init_type) GetProcAddress(library, "gpr_slice_buffer_init");
-  gpr_slice_buffer_destroy_import = (gpr_slice_buffer_destroy_type) GetProcAddress(library, "gpr_slice_buffer_destroy");
-  gpr_slice_buffer_add_import = (gpr_slice_buffer_add_type) GetProcAddress(library, "gpr_slice_buffer_add");
-  gpr_slice_buffer_add_indexed_import = (gpr_slice_buffer_add_indexed_type) GetProcAddress(library, "gpr_slice_buffer_add_indexed");
-  gpr_slice_buffer_addn_import = (gpr_slice_buffer_addn_type) GetProcAddress(library, "gpr_slice_buffer_addn");
-  gpr_slice_buffer_tiny_add_import = (gpr_slice_buffer_tiny_add_type) GetProcAddress(library, "gpr_slice_buffer_tiny_add");
-  gpr_slice_buffer_pop_import = (gpr_slice_buffer_pop_type) GetProcAddress(library, "gpr_slice_buffer_pop");
-  gpr_slice_buffer_reset_and_unref_import = (gpr_slice_buffer_reset_and_unref_type) GetProcAddress(library, "gpr_slice_buffer_reset_and_unref");
-  gpr_slice_buffer_swap_import = (gpr_slice_buffer_swap_type) GetProcAddress(library, "gpr_slice_buffer_swap");
-  gpr_slice_buffer_move_into_import = (gpr_slice_buffer_move_into_type) GetProcAddress(library, "gpr_slice_buffer_move_into");
-  gpr_slice_buffer_trim_end_import = (gpr_slice_buffer_trim_end_type) GetProcAddress(library, "gpr_slice_buffer_trim_end");
-  gpr_slice_buffer_move_first_import = (gpr_slice_buffer_move_first_type) GetProcAddress(library, "gpr_slice_buffer_move_first");
-  gpr_slice_buffer_take_first_import = (gpr_slice_buffer_take_first_type) GetProcAddress(library, "gpr_slice_buffer_take_first");
   gpr_strdup_import = (gpr_strdup_type) GetProcAddress(library, "gpr_strdup");
   gpr_asprintf_import = (gpr_asprintf_type) GetProcAddress(library, "gpr_asprintf");
   gpr_subprocess_binary_extension_import = (gpr_subprocess_binary_extension_type) GetProcAddress(library, "gpr_subprocess_binary_extension");
diff --git a/src/ruby/ext/grpc/rb_grpc_imports.generated.h b/src/ruby/ext/grpc/rb_grpc_imports.generated.h
index c224415..f8467c4 100644
--- a/src/ruby/ext/grpc/rb_grpc_imports.generated.h
+++ b/src/ruby/ext/grpc/rb_grpc_imports.generated.h
@@ -46,6 +46,8 @@
 #include <grpc/grpc.h>
 #include <grpc/grpc_posix.h>
 #include <grpc/grpc_security.h>
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/avl.h>
 #include <grpc/support/cmdline.h>
@@ -54,18 +56,16 @@
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 #include <grpc/support/log_windows.h>
-#include <grpc/support/slice.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/subprocess.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
 
-typedef grpc_byte_buffer *(*grpc_raw_byte_buffer_create_type)(gpr_slice *slices, size_t nslices);
+typedef grpc_byte_buffer *(*grpc_raw_byte_buffer_create_type)(grpc_slice *slices, size_t nslices);
 extern grpc_raw_byte_buffer_create_type grpc_raw_byte_buffer_create_import;
 #define grpc_raw_byte_buffer_create grpc_raw_byte_buffer_create_import
-typedef grpc_byte_buffer *(*grpc_raw_compressed_byte_buffer_create_type)(gpr_slice *slices, size_t nslices, grpc_compression_algorithm compression);
+typedef grpc_byte_buffer *(*grpc_raw_compressed_byte_buffer_create_type)(grpc_slice *slices, size_t nslices, grpc_compression_algorithm compression);
 extern grpc_raw_compressed_byte_buffer_create_type grpc_raw_compressed_byte_buffer_create_import;
 #define grpc_raw_compressed_byte_buffer_create grpc_raw_compressed_byte_buffer_create_import
 typedef grpc_byte_buffer *(*grpc_byte_buffer_copy_type)(grpc_byte_buffer *bb);
@@ -83,10 +83,10 @@
 typedef void(*grpc_byte_buffer_reader_destroy_type)(grpc_byte_buffer_reader *reader);
 extern grpc_byte_buffer_reader_destroy_type grpc_byte_buffer_reader_destroy_import;
 #define grpc_byte_buffer_reader_destroy grpc_byte_buffer_reader_destroy_import
-typedef int(*grpc_byte_buffer_reader_next_type)(grpc_byte_buffer_reader *reader, gpr_slice *slice);
+typedef int(*grpc_byte_buffer_reader_next_type)(grpc_byte_buffer_reader *reader, grpc_slice *slice);
 extern grpc_byte_buffer_reader_next_type grpc_byte_buffer_reader_next_import;
 #define grpc_byte_buffer_reader_next grpc_byte_buffer_reader_next_import
-typedef gpr_slice(*grpc_byte_buffer_reader_readall_type)(grpc_byte_buffer_reader *reader);
+typedef grpc_slice(*grpc_byte_buffer_reader_readall_type)(grpc_byte_buffer_reader *reader);
 extern grpc_byte_buffer_reader_readall_type grpc_byte_buffer_reader_readall_import;
 #define grpc_byte_buffer_reader_readall grpc_byte_buffer_reader_readall_import
 typedef grpc_byte_buffer *(*grpc_raw_byte_buffer_from_reader_type)(grpc_byte_buffer_reader *reader);
@@ -467,6 +467,93 @@
 typedef void(*grpc_server_credentials_set_auth_metadata_processor_type)(grpc_server_credentials *creds, grpc_auth_metadata_processor processor);
 extern grpc_server_credentials_set_auth_metadata_processor_type grpc_server_credentials_set_auth_metadata_processor_import;
 #define grpc_server_credentials_set_auth_metadata_processor grpc_server_credentials_set_auth_metadata_processor_import
+typedef grpc_slice(*grpc_slice_ref_type)(grpc_slice s);
+extern grpc_slice_ref_type grpc_slice_ref_import;
+#define grpc_slice_ref grpc_slice_ref_import
+typedef void(*grpc_slice_unref_type)(grpc_slice s);
+extern grpc_slice_unref_type grpc_slice_unref_import;
+#define grpc_slice_unref grpc_slice_unref_import
+typedef grpc_slice(*grpc_slice_new_type)(void *p, size_t len, void (*destroy)(void *));
+extern grpc_slice_new_type grpc_slice_new_import;
+#define grpc_slice_new grpc_slice_new_import
+typedef grpc_slice(*grpc_slice_new_with_user_data_type)(void *p, size_t len, void (*destroy)(void *), void *user_data);
+extern grpc_slice_new_with_user_data_type grpc_slice_new_with_user_data_import;
+#define grpc_slice_new_with_user_data grpc_slice_new_with_user_data_import
+typedef grpc_slice(*grpc_slice_new_with_len_type)(void *p, size_t len, void (*destroy)(void *, size_t));
+extern grpc_slice_new_with_len_type grpc_slice_new_with_len_import;
+#define grpc_slice_new_with_len grpc_slice_new_with_len_import
+typedef grpc_slice(*grpc_slice_malloc_type)(size_t length);
+extern grpc_slice_malloc_type grpc_slice_malloc_import;
+#define grpc_slice_malloc grpc_slice_malloc_import
+typedef grpc_slice(*grpc_slice_from_copied_string_type)(const char *source);
+extern grpc_slice_from_copied_string_type grpc_slice_from_copied_string_import;
+#define grpc_slice_from_copied_string grpc_slice_from_copied_string_import
+typedef grpc_slice(*grpc_slice_from_copied_buffer_type)(const char *source, size_t len);
+extern grpc_slice_from_copied_buffer_type grpc_slice_from_copied_buffer_import;
+#define grpc_slice_from_copied_buffer grpc_slice_from_copied_buffer_import
+typedef grpc_slice(*grpc_slice_from_static_string_type)(const char *source);
+extern grpc_slice_from_static_string_type grpc_slice_from_static_string_import;
+#define grpc_slice_from_static_string grpc_slice_from_static_string_import
+typedef grpc_slice(*grpc_slice_sub_type)(grpc_slice s, size_t begin, size_t end);
+extern grpc_slice_sub_type grpc_slice_sub_import;
+#define grpc_slice_sub grpc_slice_sub_import
+typedef grpc_slice(*grpc_slice_sub_no_ref_type)(grpc_slice s, size_t begin, size_t end);
+extern grpc_slice_sub_no_ref_type grpc_slice_sub_no_ref_import;
+#define grpc_slice_sub_no_ref grpc_slice_sub_no_ref_import
+typedef grpc_slice(*grpc_slice_split_tail_type)(grpc_slice *s, size_t split);
+extern grpc_slice_split_tail_type grpc_slice_split_tail_import;
+#define grpc_slice_split_tail grpc_slice_split_tail_import
+typedef grpc_slice(*grpc_slice_split_head_type)(grpc_slice *s, size_t split);
+extern grpc_slice_split_head_type grpc_slice_split_head_import;
+#define grpc_slice_split_head grpc_slice_split_head_import
+typedef grpc_slice(*gpr_empty_slice_type)(void);
+extern gpr_empty_slice_type gpr_empty_slice_import;
+#define gpr_empty_slice gpr_empty_slice_import
+typedef int(*grpc_slice_cmp_type)(grpc_slice a, grpc_slice b);
+extern grpc_slice_cmp_type grpc_slice_cmp_import;
+#define grpc_slice_cmp grpc_slice_cmp_import
+typedef int(*grpc_slice_str_cmp_type)(grpc_slice a, const char *b);
+extern grpc_slice_str_cmp_type grpc_slice_str_cmp_import;
+#define grpc_slice_str_cmp grpc_slice_str_cmp_import
+typedef void(*grpc_slice_buffer_init_type)(grpc_slice_buffer *sb);
+extern grpc_slice_buffer_init_type grpc_slice_buffer_init_import;
+#define grpc_slice_buffer_init grpc_slice_buffer_init_import
+typedef void(*grpc_slice_buffer_destroy_type)(grpc_slice_buffer *sb);
+extern grpc_slice_buffer_destroy_type grpc_slice_buffer_destroy_import;
+#define grpc_slice_buffer_destroy grpc_slice_buffer_destroy_import
+typedef void(*grpc_slice_buffer_add_type)(grpc_slice_buffer *sb, grpc_slice slice);
+extern grpc_slice_buffer_add_type grpc_slice_buffer_add_import;
+#define grpc_slice_buffer_add grpc_slice_buffer_add_import
+typedef size_t(*grpc_slice_buffer_add_indexed_type)(grpc_slice_buffer *sb, grpc_slice slice);
+extern grpc_slice_buffer_add_indexed_type grpc_slice_buffer_add_indexed_import;
+#define grpc_slice_buffer_add_indexed grpc_slice_buffer_add_indexed_import
+typedef void(*grpc_slice_buffer_addn_type)(grpc_slice_buffer *sb, grpc_slice *slices, size_t n);
+extern grpc_slice_buffer_addn_type grpc_slice_buffer_addn_import;
+#define grpc_slice_buffer_addn grpc_slice_buffer_addn_import
+typedef uint8_t *(*grpc_slice_buffer_tiny_add_type)(grpc_slice_buffer *sb, size_t len);
+extern grpc_slice_buffer_tiny_add_type grpc_slice_buffer_tiny_add_import;
+#define grpc_slice_buffer_tiny_add grpc_slice_buffer_tiny_add_import
+typedef void(*grpc_slice_buffer_pop_type)(grpc_slice_buffer *sb);
+extern grpc_slice_buffer_pop_type grpc_slice_buffer_pop_import;
+#define grpc_slice_buffer_pop grpc_slice_buffer_pop_import
+typedef void(*grpc_slice_buffer_reset_and_unref_type)(grpc_slice_buffer *sb);
+extern grpc_slice_buffer_reset_and_unref_type grpc_slice_buffer_reset_and_unref_import;
+#define grpc_slice_buffer_reset_and_unref grpc_slice_buffer_reset_and_unref_import
+typedef void(*grpc_slice_buffer_swap_type)(grpc_slice_buffer *a, grpc_slice_buffer *b);
+extern grpc_slice_buffer_swap_type grpc_slice_buffer_swap_import;
+#define grpc_slice_buffer_swap grpc_slice_buffer_swap_import
+typedef void(*grpc_slice_buffer_move_into_type)(grpc_slice_buffer *src, grpc_slice_buffer *dst);
+extern grpc_slice_buffer_move_into_type grpc_slice_buffer_move_into_import;
+#define grpc_slice_buffer_move_into grpc_slice_buffer_move_into_import
+typedef void(*grpc_slice_buffer_trim_end_type)(grpc_slice_buffer *src, size_t n, grpc_slice_buffer *garbage);
+extern grpc_slice_buffer_trim_end_type grpc_slice_buffer_trim_end_import;
+#define grpc_slice_buffer_trim_end grpc_slice_buffer_trim_end_import
+typedef void(*grpc_slice_buffer_move_first_type)(grpc_slice_buffer *src, size_t n, grpc_slice_buffer *dst);
+extern grpc_slice_buffer_move_first_type grpc_slice_buffer_move_first_import;
+#define grpc_slice_buffer_move_first grpc_slice_buffer_move_first_import
+typedef grpc_slice(*grpc_slice_buffer_take_first_type)(grpc_slice_buffer *src);
+extern grpc_slice_buffer_take_first_type grpc_slice_buffer_take_first_import;
+#define grpc_slice_buffer_take_first grpc_slice_buffer_take_first_import
 typedef void *(*gpr_malloc_type)(size_t size);
 extern gpr_malloc_type gpr_malloc_import;
 #define gpr_malloc gpr_malloc_import
@@ -614,93 +701,6 @@
 typedef char *(*gpr_format_message_type)(int messageid);
 extern gpr_format_message_type gpr_format_message_import;
 #define gpr_format_message gpr_format_message_import
-typedef gpr_slice(*gpr_slice_ref_type)(gpr_slice s);
-extern gpr_slice_ref_type gpr_slice_ref_import;
-#define gpr_slice_ref gpr_slice_ref_import
-typedef void(*gpr_slice_unref_type)(gpr_slice s);
-extern gpr_slice_unref_type gpr_slice_unref_import;
-#define gpr_slice_unref gpr_slice_unref_import
-typedef gpr_slice(*gpr_slice_new_type)(void *p, size_t len, void (*destroy)(void *));
-extern gpr_slice_new_type gpr_slice_new_import;
-#define gpr_slice_new gpr_slice_new_import
-typedef gpr_slice(*gpr_slice_new_with_user_data_type)(void *p, size_t len, void (*destroy)(void *), void *user_data);
-extern gpr_slice_new_with_user_data_type gpr_slice_new_with_user_data_import;
-#define gpr_slice_new_with_user_data gpr_slice_new_with_user_data_import
-typedef gpr_slice(*gpr_slice_new_with_len_type)(void *p, size_t len, void (*destroy)(void *, size_t));
-extern gpr_slice_new_with_len_type gpr_slice_new_with_len_import;
-#define gpr_slice_new_with_len gpr_slice_new_with_len_import
-typedef gpr_slice(*gpr_slice_malloc_type)(size_t length);
-extern gpr_slice_malloc_type gpr_slice_malloc_import;
-#define gpr_slice_malloc gpr_slice_malloc_import
-typedef gpr_slice(*gpr_slice_from_copied_string_type)(const char *source);
-extern gpr_slice_from_copied_string_type gpr_slice_from_copied_string_import;
-#define gpr_slice_from_copied_string gpr_slice_from_copied_string_import
-typedef gpr_slice(*gpr_slice_from_copied_buffer_type)(const char *source, size_t len);
-extern gpr_slice_from_copied_buffer_type gpr_slice_from_copied_buffer_import;
-#define gpr_slice_from_copied_buffer gpr_slice_from_copied_buffer_import
-typedef gpr_slice(*gpr_slice_from_static_string_type)(const char *source);
-extern gpr_slice_from_static_string_type gpr_slice_from_static_string_import;
-#define gpr_slice_from_static_string gpr_slice_from_static_string_import
-typedef gpr_slice(*gpr_slice_sub_type)(gpr_slice s, size_t begin, size_t end);
-extern gpr_slice_sub_type gpr_slice_sub_import;
-#define gpr_slice_sub gpr_slice_sub_import
-typedef gpr_slice(*gpr_slice_sub_no_ref_type)(gpr_slice s, size_t begin, size_t end);
-extern gpr_slice_sub_no_ref_type gpr_slice_sub_no_ref_import;
-#define gpr_slice_sub_no_ref gpr_slice_sub_no_ref_import
-typedef gpr_slice(*gpr_slice_split_tail_type)(gpr_slice *s, size_t split);
-extern gpr_slice_split_tail_type gpr_slice_split_tail_import;
-#define gpr_slice_split_tail gpr_slice_split_tail_import
-typedef gpr_slice(*gpr_slice_split_head_type)(gpr_slice *s, size_t split);
-extern gpr_slice_split_head_type gpr_slice_split_head_import;
-#define gpr_slice_split_head gpr_slice_split_head_import
-typedef gpr_slice(*gpr_empty_slice_type)(void);
-extern gpr_empty_slice_type gpr_empty_slice_import;
-#define gpr_empty_slice gpr_empty_slice_import
-typedef int(*gpr_slice_cmp_type)(gpr_slice a, gpr_slice b);
-extern gpr_slice_cmp_type gpr_slice_cmp_import;
-#define gpr_slice_cmp gpr_slice_cmp_import
-typedef int(*gpr_slice_str_cmp_type)(gpr_slice a, const char *b);
-extern gpr_slice_str_cmp_type gpr_slice_str_cmp_import;
-#define gpr_slice_str_cmp gpr_slice_str_cmp_import
-typedef void(*gpr_slice_buffer_init_type)(gpr_slice_buffer *sb);
-extern gpr_slice_buffer_init_type gpr_slice_buffer_init_import;
-#define gpr_slice_buffer_init gpr_slice_buffer_init_import
-typedef void(*gpr_slice_buffer_destroy_type)(gpr_slice_buffer *sb);
-extern gpr_slice_buffer_destroy_type gpr_slice_buffer_destroy_import;
-#define gpr_slice_buffer_destroy gpr_slice_buffer_destroy_import
-typedef void(*gpr_slice_buffer_add_type)(gpr_slice_buffer *sb, gpr_slice slice);
-extern gpr_slice_buffer_add_type gpr_slice_buffer_add_import;
-#define gpr_slice_buffer_add gpr_slice_buffer_add_import
-typedef size_t(*gpr_slice_buffer_add_indexed_type)(gpr_slice_buffer *sb, gpr_slice slice);
-extern gpr_slice_buffer_add_indexed_type gpr_slice_buffer_add_indexed_import;
-#define gpr_slice_buffer_add_indexed gpr_slice_buffer_add_indexed_import
-typedef void(*gpr_slice_buffer_addn_type)(gpr_slice_buffer *sb, gpr_slice *slices, size_t n);
-extern gpr_slice_buffer_addn_type gpr_slice_buffer_addn_import;
-#define gpr_slice_buffer_addn gpr_slice_buffer_addn_import
-typedef uint8_t *(*gpr_slice_buffer_tiny_add_type)(gpr_slice_buffer *sb, size_t len);
-extern gpr_slice_buffer_tiny_add_type gpr_slice_buffer_tiny_add_import;
-#define gpr_slice_buffer_tiny_add gpr_slice_buffer_tiny_add_import
-typedef void(*gpr_slice_buffer_pop_type)(gpr_slice_buffer *sb);
-extern gpr_slice_buffer_pop_type gpr_slice_buffer_pop_import;
-#define gpr_slice_buffer_pop gpr_slice_buffer_pop_import
-typedef void(*gpr_slice_buffer_reset_and_unref_type)(gpr_slice_buffer *sb);
-extern gpr_slice_buffer_reset_and_unref_type gpr_slice_buffer_reset_and_unref_import;
-#define gpr_slice_buffer_reset_and_unref gpr_slice_buffer_reset_and_unref_import
-typedef void(*gpr_slice_buffer_swap_type)(gpr_slice_buffer *a, gpr_slice_buffer *b);
-extern gpr_slice_buffer_swap_type gpr_slice_buffer_swap_import;
-#define gpr_slice_buffer_swap gpr_slice_buffer_swap_import
-typedef void(*gpr_slice_buffer_move_into_type)(gpr_slice_buffer *src, gpr_slice_buffer *dst);
-extern gpr_slice_buffer_move_into_type gpr_slice_buffer_move_into_import;
-#define gpr_slice_buffer_move_into gpr_slice_buffer_move_into_import
-typedef void(*gpr_slice_buffer_trim_end_type)(gpr_slice_buffer *src, size_t n, gpr_slice_buffer *garbage);
-extern gpr_slice_buffer_trim_end_type gpr_slice_buffer_trim_end_import;
-#define gpr_slice_buffer_trim_end gpr_slice_buffer_trim_end_import
-typedef void(*gpr_slice_buffer_move_first_type)(gpr_slice_buffer *src, size_t n, gpr_slice_buffer *dst);
-extern gpr_slice_buffer_move_first_type gpr_slice_buffer_move_first_import;
-#define gpr_slice_buffer_move_first gpr_slice_buffer_move_first_import
-typedef gpr_slice(*gpr_slice_buffer_take_first_type)(gpr_slice_buffer *src);
-extern gpr_slice_buffer_take_first_type gpr_slice_buffer_take_first_import;
-#define gpr_slice_buffer_take_first gpr_slice_buffer_take_first_import
 typedef char *(*gpr_strdup_type)(const char *src);
 extern gpr_strdup_type gpr_strdup_import;
 #define gpr_strdup gpr_strdup_import
diff --git a/test/core/bad_client/bad_client.c b/test/core/bad_client/bad_client.c
index a963850..07fcd99 100644
--- a/test/core/bad_client/bad_client.c
+++ b/test/core/bad_client/bad_client.c
@@ -77,7 +77,7 @@
 
 typedef struct {
   grpc_bad_client_client_stream_validator validator;
-  gpr_slice_buffer incoming;
+  grpc_slice_buffer incoming;
   gpr_event read_done;
 } read_args;
 
@@ -96,9 +96,9 @@
   gpr_thd_id id;
   char *hex;
   grpc_transport *transport;
-  gpr_slice slice =
-      gpr_slice_from_copied_buffer(client_payload, client_payload_length);
-  gpr_slice_buffer outgoing;
+  grpc_slice slice =
+      grpc_slice_from_copied_buffer(client_payload, client_payload_length);
+  grpc_slice_buffer outgoing;
   grpc_closure done_write_closure;
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
 
@@ -146,8 +146,8 @@
   /* Start validator */
   gpr_thd_new(&id, thd_func, &a, NULL);
 
-  gpr_slice_buffer_init(&outgoing);
-  gpr_slice_buffer_add(&outgoing, slice);
+  grpc_slice_buffer_init(&outgoing);
+  grpc_slice_buffer_add(&outgoing, slice);
   grpc_closure_init(&done_write_closure, done_write, &a);
 
   /* Write data */
@@ -172,7 +172,7 @@
     if (client_validator != NULL) {
       read_args args;
       args.validator = client_validator;
-      gpr_slice_buffer_init(&args.incoming);
+      grpc_slice_buffer_init(&args.incoming);
       gpr_event_init(&args.read_done);
       grpc_closure read_done_closure;
       grpc_closure_init(&read_done_closure, read_done, &args);
@@ -181,7 +181,7 @@
       grpc_exec_ctx_finish(&exec_ctx);
       GPR_ASSERT(
           gpr_event_wait(&args.read_done, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5)));
-      gpr_slice_buffer_destroy(&args.incoming);
+      grpc_slice_buffer_destroy(&args.incoming);
     }
     // Shutdown.
     grpc_endpoint_shutdown(&exec_ctx, sfd.client);
@@ -194,7 +194,7 @@
                  .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(a.server);
   grpc_completion_queue_destroy(a.cq);
-  gpr_slice_buffer_destroy(&outgoing);
+  grpc_slice_buffer_destroy(&outgoing);
 
   grpc_exec_ctx_finish(&exec_ctx);
   grpc_shutdown();
diff --git a/test/core/bad_client/bad_client.h b/test/core/bad_client/bad_client.h
index c8b2a41..bbca418 100644
--- a/test/core/bad_client/bad_client.h
+++ b/test/core/bad_client/bad_client.h
@@ -45,7 +45,7 @@
                                                       void *registered_method);
 
 typedef void (*grpc_bad_client_client_stream_validator)(
-    gpr_slice_buffer *incoming);
+    grpc_slice_buffer *incoming);
 
 #define GRPC_BAD_CLIENT_DISCONNECT 1
 
diff --git a/test/core/bad_client/tests/large_metadata.c b/test/core/bad_client/tests/large_metadata.c
index b9c8093..9c804e7 100644
--- a/test/core/bad_client/tests/large_metadata.c
+++ b/test/core/bad_client/tests/large_metadata.c
@@ -183,16 +183,16 @@
   cq_verifier_destroy(cqv);
 }
 
-static void client_validator(gpr_slice_buffer *incoming) {
+static void client_validator(grpc_slice_buffer *incoming) {
   // Get last frame from incoming slice buffer.
-  gpr_slice_buffer last_frame_buffer;
-  gpr_slice_buffer_init(&last_frame_buffer);
-  gpr_slice_buffer_trim_end(incoming, 13, &last_frame_buffer);
+  grpc_slice_buffer last_frame_buffer;
+  grpc_slice_buffer_init(&last_frame_buffer);
+  grpc_slice_buffer_trim_end(incoming, 13, &last_frame_buffer);
   GPR_ASSERT(last_frame_buffer.count == 1);
-  gpr_slice last_frame = last_frame_buffer.slices[0];
+  grpc_slice last_frame = last_frame_buffer.slices[0];
   // Construct expected frame.
-  gpr_slice expected = gpr_slice_malloc(13);
-  uint8_t *p = GPR_SLICE_START_PTR(expected);
+  grpc_slice expected = grpc_slice_malloc(13);
+  uint8_t *p = GRPC_SLICE_START_PTR(expected);
   // Length.
   *p++ = 0;
   *p++ = 0;
@@ -212,8 +212,8 @@
   *p++ = 0;
   *p++ = 11;
   // Compare actual and expected.
-  GPR_ASSERT(gpr_slice_cmp(last_frame, expected) == 0);
-  gpr_slice_buffer_destroy(&last_frame_buffer);
+  GPR_ASSERT(grpc_slice_cmp(last_frame, expected) == 0);
+  grpc_slice_buffer_destroy(&last_frame_buffer);
 }
 
 int main(int argc, char **argv) {
diff --git a/test/core/bad_ssl/servers/cert.c b/test/core/bad_ssl/servers/cert.c
index 91dd9de..9aadf45 100644
--- a/test/core/bad_ssl/servers/cert.c
+++ b/test/core/bad_ssl/servers/cert.c
@@ -51,7 +51,7 @@
   grpc_ssl_pem_key_cert_pair pem_key_cert_pair;
   grpc_server_credentials *ssl_creds;
   grpc_server *server;
-  gpr_slice cert_slice, key_slice;
+  grpc_slice cert_slice, key_slice;
 
   grpc_init();
 
@@ -61,8 +61,8 @@
   GPR_ASSERT(GRPC_LOG_IF_ERROR(
       "load_file", grpc_load_file("src/core/lib/tsi/test_creds/badserver.key",
                                   1, &key_slice)));
-  pem_key_cert_pair.private_key = (const char *)GPR_SLICE_START_PTR(key_slice);
-  pem_key_cert_pair.cert_chain = (const char *)GPR_SLICE_START_PTR(cert_slice);
+  pem_key_cert_pair.private_key = (const char *)GRPC_SLICE_START_PTR(key_slice);
+  pem_key_cert_pair.cert_chain = (const char *)GRPC_SLICE_START_PTR(cert_slice);
 
   ssl_creds =
       grpc_ssl_server_credentials_create(NULL, &pem_key_cert_pair, 1, 0, NULL);
@@ -70,8 +70,8 @@
   GPR_ASSERT(grpc_server_add_secure_http2_port(server, addr, ssl_creds));
   grpc_server_credentials_release(ssl_creds);
 
-  gpr_slice_unref(cert_slice);
-  gpr_slice_unref(key_slice);
+  grpc_slice_unref(cert_slice);
+  grpc_slice_unref(key_slice);
 
   bad_ssl_run(server);
   grpc_shutdown();
diff --git a/test/core/client_channel/set_initial_connect_string_test.c b/test/core/client_channel/set_initial_connect_string_test.c
index d93cad5..b16a3eb 100644
--- a/test/core/client_channel/set_initial_connect_string_test.c
+++ b/test/core/client_channel/set_initial_connect_string_test.c
@@ -40,15 +40,16 @@
 #include <string.h>
 
 #include <grpc/grpc.h>
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include <grpc/support/thd.h>
 
 #include "src/core/ext/client_channel/initial_connect_string.h"
 #include "src/core/lib/iomgr/sockaddr.h"
 #include "src/core/lib/security/credentials/fake/fake_credentials.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
@@ -61,8 +62,8 @@
   grpc_channel *channel;
   grpc_call *call;
   grpc_op op;
-  gpr_slice_buffer incoming_buffer;
-  gpr_slice_buffer temp_incoming_buffer;
+  grpc_slice_buffer incoming_buffer;
+  grpc_slice_buffer temp_incoming_buffer;
   grpc_endpoint *tcp;
   gpr_atm done_atm;
 };
@@ -74,8 +75,8 @@
 
 static void handle_read(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {
   GPR_ASSERT(error == GRPC_ERROR_NONE);
-  gpr_slice_buffer_move_into(&state.temp_incoming_buffer,
-                             &state.incoming_buffer);
+  grpc_slice_buffer_move_into(&state.temp_incoming_buffer,
+                              &state.incoming_buffer);
   gpr_log(GPR_DEBUG, "got %" PRIuPTR " bytes, magic is %" PRIuPTR " bytes",
           state.incoming_buffer.length, strlen(magic_connect_string));
   if (state.incoming_buffer.length > strlen(magic_connect_string)) {
@@ -93,24 +94,24 @@
                        grpc_tcp_server_acceptor *acceptor) {
   test_tcp_server *server = arg;
   grpc_closure_init(&on_read, handle_read, NULL);
-  gpr_slice_buffer_init(&state.incoming_buffer);
-  gpr_slice_buffer_init(&state.temp_incoming_buffer);
+  grpc_slice_buffer_init(&state.incoming_buffer);
+  grpc_slice_buffer_init(&state.temp_incoming_buffer);
   state.tcp = tcp;
   grpc_endpoint_add_to_pollset(exec_ctx, tcp, server->pollset);
   grpc_endpoint_read(exec_ctx, tcp, &state.temp_incoming_buffer, &on_read);
 }
 
 static void set_magic_initial_string(grpc_resolved_address **addr,
-                                     gpr_slice *connect_string) {
+                                     grpc_slice *connect_string) {
   GPR_ASSERT(addr);
   GPR_ASSERT((*addr)->len);
-  *connect_string = gpr_slice_from_copied_string(magic_connect_string);
+  *connect_string = grpc_slice_from_copied_string(magic_connect_string);
 }
 
 static void reset_addr_and_set_magic_string(grpc_resolved_address **addr,
-                                            gpr_slice *connect_string) {
+                                            grpc_slice *connect_string) {
   struct sockaddr_in target;
-  *connect_string = gpr_slice_from_copied_string(magic_connect_string);
+  *connect_string = grpc_slice_from_copied_string(magic_connect_string);
   gpr_free(*addr);
   target.sin_family = AF_INET;
   target.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
@@ -154,8 +155,8 @@
 
 static void cleanup_rpc(void) {
   grpc_event ev;
-  gpr_slice_buffer_destroy(&state.incoming_buffer);
-  gpr_slice_buffer_destroy(&state.temp_incoming_buffer);
+  grpc_slice_buffer_destroy(&state.incoming_buffer);
+  grpc_slice_buffer_destroy(&state.temp_incoming_buffer);
   grpc_channel_credentials_unref(state.creds);
   grpc_call_destroy(state.call);
   grpc_completion_queue_shutdown(state.cq);
@@ -200,13 +201,13 @@
   gpr_thd_new(&id, actually_poll_server, pa, NULL);
 }
 
-static void match_initial_magic_string(gpr_slice_buffer *buffer) {
+static void match_initial_magic_string(grpc_slice_buffer *buffer) {
   size_t i, j, cmp_length;
   size_t magic_length = strlen(magic_connect_string);
   GPR_ASSERT(buffer->length >= magic_length);
   for (i = 0, j = 0; i < state.incoming_buffer.count && j < magic_length; i++) {
     char *dump =
-        gpr_dump_slice(state.incoming_buffer.slices[i], GPR_DUMP_ASCII);
+        grpc_dump_slice(state.incoming_buffer.slices[i], GPR_DUMP_ASCII);
     cmp_length = GPR_MIN(strlen(dump), magic_length - j);
     GPR_ASSERT(strncmp(dump, magic_connect_string + j, cmp_length) == 0);
     j += cmp_length;
diff --git a/test/core/compression/message_compress_test.c b/test/core/compression/message_compress_test.c
index 47ecf72..fc53cd9 100644
--- a/test/core/compression/message_compress_test.c
+++ b/test/core/compression/message_compress_test.c
@@ -52,16 +52,16 @@
   MAYBE_COMPRESSES
 } compressability;
 
-static void assert_passthrough(gpr_slice value,
+static void assert_passthrough(grpc_slice value,
                                grpc_compression_algorithm algorithm,
                                grpc_slice_split_mode uncompressed_split_mode,
                                grpc_slice_split_mode compressed_split_mode,
                                compressability compress_result_check) {
-  gpr_slice_buffer input;
-  gpr_slice_buffer compressed_raw;
-  gpr_slice_buffer compressed;
-  gpr_slice_buffer output;
-  gpr_slice final;
+  grpc_slice_buffer input;
+  grpc_slice_buffer compressed_raw;
+  grpc_slice_buffer compressed;
+  grpc_slice_buffer output;
+  grpc_slice final;
   int was_compressed;
   char *algorithm_name;
 
@@ -70,15 +70,15 @@
       GPR_INFO, "assert_passthrough: value_length=%" PRIuPTR
                 " value_hash=0x%08x "
                 "algorithm='%s' uncompressed_split='%s' compressed_split='%s'",
-      GPR_SLICE_LENGTH(value),
-      gpr_murmur_hash3(GPR_SLICE_START_PTR(value), GPR_SLICE_LENGTH(value), 0),
+      GRPC_SLICE_LENGTH(value), gpr_murmur_hash3(GRPC_SLICE_START_PTR(value),
+                                                 GRPC_SLICE_LENGTH(value), 0),
       algorithm_name, grpc_slice_split_mode_name(uncompressed_split_mode),
       grpc_slice_split_mode_name(compressed_split_mode));
 
-  gpr_slice_buffer_init(&input);
-  gpr_slice_buffer_init(&compressed_raw);
-  gpr_slice_buffer_init(&compressed);
-  gpr_slice_buffer_init(&output);
+  grpc_slice_buffer_init(&input);
+  grpc_slice_buffer_init(&compressed_raw);
+  grpc_slice_buffer_init(&compressed);
+  grpc_slice_buffer_init(&output);
 
   grpc_split_slices_to_buffer(uncompressed_split_mode, &value, 1, &input);
 
@@ -103,18 +103,18 @@
       was_compressed ? algorithm : GRPC_COMPRESS_NONE, &compressed, &output));
 
   final = grpc_slice_merge(output.slices, output.count);
-  GPR_ASSERT(0 == gpr_slice_cmp(value, final));
+  GPR_ASSERT(0 == grpc_slice_cmp(value, final));
 
-  gpr_slice_buffer_destroy(&input);
-  gpr_slice_buffer_destroy(&compressed);
-  gpr_slice_buffer_destroy(&compressed_raw);
-  gpr_slice_buffer_destroy(&output);
-  gpr_slice_unref(final);
+  grpc_slice_buffer_destroy(&input);
+  grpc_slice_buffer_destroy(&compressed);
+  grpc_slice_buffer_destroy(&compressed_raw);
+  grpc_slice_buffer_destroy(&output);
+  grpc_slice_unref(final);
 }
 
-static gpr_slice repeated(char c, size_t length) {
-  gpr_slice out = gpr_slice_malloc(length);
-  memset(GPR_SLICE_START_PTR(out), c, length);
+static grpc_slice repeated(char c, size_t length) {
+  grpc_slice out = grpc_slice_malloc(length);
+  memset(GRPC_SLICE_START_PTR(out), c, length);
   return out;
 }
 
@@ -134,10 +134,10 @@
   return MAYBE_COMPRESSES;
 }
 
-static gpr_slice create_test_value(test_value id) {
+static grpc_slice create_test_value(test_value id) {
   switch (id) {
     case ONE_A:
-      return gpr_slice_from_copied_string("a");
+      return grpc_slice_from_copied_string("a");
     case ONE_KB_A:
       return repeated('a', 1024);
     case ONE_MB_A:
@@ -146,17 +146,17 @@
       abort();
       break;
   }
-  return gpr_slice_from_copied_string("bad value");
+  return grpc_slice_from_copied_string("bad value");
 }
 
 static void test_tiny_data_compress(void) {
-  gpr_slice_buffer input;
-  gpr_slice_buffer output;
+  grpc_slice_buffer input;
+  grpc_slice_buffer output;
   grpc_compression_algorithm i;
 
-  gpr_slice_buffer_init(&input);
-  gpr_slice_buffer_init(&output);
-  gpr_slice_buffer_add(&input, create_test_value(ONE_A));
+  grpc_slice_buffer_init(&input);
+  grpc_slice_buffer_init(&output);
+  grpc_slice_buffer_add(&input, create_test_value(ONE_A));
 
   for (i = 0; i < GRPC_COMPRESS_ALGORITHMS_COUNT; i++) {
     if (i == GRPC_COMPRESS_NONE) continue;
@@ -164,81 +164,81 @@
     GPR_ASSERT(1 == output.count);
   }
 
-  gpr_slice_buffer_destroy(&input);
-  gpr_slice_buffer_destroy(&output);
+  grpc_slice_buffer_destroy(&input);
+  grpc_slice_buffer_destroy(&output);
 }
 
 static void test_bad_decompression_data_crc(void) {
-  gpr_slice_buffer input;
-  gpr_slice_buffer corrupted;
-  gpr_slice_buffer output;
+  grpc_slice_buffer input;
+  grpc_slice_buffer corrupted;
+  grpc_slice_buffer output;
   size_t idx;
   const uint32_t bad = 0xdeadbeef;
 
-  gpr_slice_buffer_init(&input);
-  gpr_slice_buffer_init(&corrupted);
-  gpr_slice_buffer_init(&output);
-  gpr_slice_buffer_add(&input, create_test_value(ONE_MB_A));
+  grpc_slice_buffer_init(&input);
+  grpc_slice_buffer_init(&corrupted);
+  grpc_slice_buffer_init(&output);
+  grpc_slice_buffer_add(&input, create_test_value(ONE_MB_A));
 
   /* compress it */
   grpc_msg_compress(GRPC_COMPRESS_GZIP, &input, &corrupted);
   /* corrupt the output by smashing the CRC */
   GPR_ASSERT(corrupted.count > 1);
-  GPR_ASSERT(GPR_SLICE_LENGTH(corrupted.slices[1]) > 8);
-  idx = GPR_SLICE_LENGTH(corrupted.slices[1]) - 8;
-  memcpy(GPR_SLICE_START_PTR(corrupted.slices[1]) + idx, &bad, 4);
+  GPR_ASSERT(GRPC_SLICE_LENGTH(corrupted.slices[1]) > 8);
+  idx = GRPC_SLICE_LENGTH(corrupted.slices[1]) - 8;
+  memcpy(GRPC_SLICE_START_PTR(corrupted.slices[1]) + idx, &bad, 4);
 
   /* try (and fail) to decompress the corrupted compresed buffer */
   GPR_ASSERT(0 == grpc_msg_decompress(GRPC_COMPRESS_GZIP, &corrupted, &output));
 
-  gpr_slice_buffer_destroy(&input);
-  gpr_slice_buffer_destroy(&corrupted);
-  gpr_slice_buffer_destroy(&output);
+  grpc_slice_buffer_destroy(&input);
+  grpc_slice_buffer_destroy(&corrupted);
+  grpc_slice_buffer_destroy(&output);
 }
 
 static void test_bad_decompression_data_trailing_garbage(void) {
-  gpr_slice_buffer input;
-  gpr_slice_buffer output;
+  grpc_slice_buffer input;
+  grpc_slice_buffer output;
 
-  gpr_slice_buffer_init(&input);
-  gpr_slice_buffer_init(&output);
+  grpc_slice_buffer_init(&input);
+  grpc_slice_buffer_init(&output);
   /* append 0x99 to the end of an otherwise valid stream */
-  gpr_slice_buffer_add(
-      &input, gpr_slice_from_copied_buffer(
+  grpc_slice_buffer_add(
+      &input, grpc_slice_from_copied_buffer(
                   "\x78\xda\x63\x60\x60\x60\x00\x00\x00\x04\x00\x01\x99", 13));
 
   /* try (and fail) to decompress the invalid compresed buffer */
   GPR_ASSERT(0 == grpc_msg_decompress(GRPC_COMPRESS_DEFLATE, &input, &output));
 
-  gpr_slice_buffer_destroy(&input);
-  gpr_slice_buffer_destroy(&output);
+  grpc_slice_buffer_destroy(&input);
+  grpc_slice_buffer_destroy(&output);
 }
 
 static void test_bad_decompression_data_stream(void) {
-  gpr_slice_buffer input;
-  gpr_slice_buffer output;
+  grpc_slice_buffer input;
+  grpc_slice_buffer output;
 
-  gpr_slice_buffer_init(&input);
-  gpr_slice_buffer_init(&output);
-  gpr_slice_buffer_add(&input,
-                       gpr_slice_from_copied_buffer("\x78\xda\xff\xff", 4));
+  grpc_slice_buffer_init(&input);
+  grpc_slice_buffer_init(&output);
+  grpc_slice_buffer_add(&input,
+                        grpc_slice_from_copied_buffer("\x78\xda\xff\xff", 4));
 
   /* try (and fail) to decompress the invalid compresed buffer */
   GPR_ASSERT(0 == grpc_msg_decompress(GRPC_COMPRESS_DEFLATE, &input, &output));
 
-  gpr_slice_buffer_destroy(&input);
-  gpr_slice_buffer_destroy(&output);
+  grpc_slice_buffer_destroy(&input);
+  grpc_slice_buffer_destroy(&output);
 }
 
 static void test_bad_compression_algorithm(void) {
-  gpr_slice_buffer input;
-  gpr_slice_buffer output;
+  grpc_slice_buffer input;
+  grpc_slice_buffer output;
   int was_compressed;
 
-  gpr_slice_buffer_init(&input);
-  gpr_slice_buffer_init(&output);
-  gpr_slice_buffer_add(&input,
-                       gpr_slice_from_copied_string("Never gonna give you up"));
+  grpc_slice_buffer_init(&input);
+  grpc_slice_buffer_init(&output);
+  grpc_slice_buffer_add(
+      &input, grpc_slice_from_copied_string("Never gonna give you up"));
   was_compressed =
       grpc_msg_compress(GRPC_COMPRESS_ALGORITHMS_COUNT, &input, &output);
   GPR_ASSERT(0 == was_compressed);
@@ -247,20 +247,20 @@
       grpc_msg_compress(GRPC_COMPRESS_ALGORITHMS_COUNT + 123, &input, &output);
   GPR_ASSERT(0 == was_compressed);
 
-  gpr_slice_buffer_destroy(&input);
-  gpr_slice_buffer_destroy(&output);
+  grpc_slice_buffer_destroy(&input);
+  grpc_slice_buffer_destroy(&output);
 }
 
 static void test_bad_decompression_algorithm(void) {
-  gpr_slice_buffer input;
-  gpr_slice_buffer output;
+  grpc_slice_buffer input;
+  grpc_slice_buffer output;
   int was_decompressed;
 
-  gpr_slice_buffer_init(&input);
-  gpr_slice_buffer_init(&output);
-  gpr_slice_buffer_add(&input,
-                       gpr_slice_from_copied_string(
-                           "I'm not really compressed but it doesn't matter"));
+  grpc_slice_buffer_init(&input);
+  grpc_slice_buffer_init(&output);
+  grpc_slice_buffer_add(&input,
+                        grpc_slice_from_copied_string(
+                            "I'm not really compressed but it doesn't matter"));
   was_decompressed =
       grpc_msg_decompress(GRPC_COMPRESS_ALGORITHMS_COUNT, &input, &output);
   GPR_ASSERT(0 == was_decompressed);
@@ -269,8 +269,8 @@
                                          &input, &output);
   GPR_ASSERT(0 == was_decompressed);
 
-  gpr_slice_buffer_destroy(&input);
-  gpr_slice_buffer_destroy(&output);
+  grpc_slice_buffer_destroy(&input);
+  grpc_slice_buffer_destroy(&output);
 }
 
 int main(int argc, char **argv) {
@@ -288,9 +288,9 @@
     for (j = 0; j < GPR_ARRAY_SIZE(uncompressed_split_modes); j++) {
       for (k = 0; k < GPR_ARRAY_SIZE(compressed_split_modes); k++) {
         for (m = 0; m < TEST_VALUE_COUNT; m++) {
-          gpr_slice slice = create_test_value(m);
+          grpc_slice slice = create_test_value(m);
           assert_passthrough(slice, i, j, k, get_compressability(m, i));
-          gpr_slice_unref(slice);
+          grpc_slice_unref(slice);
         }
       }
     }
diff --git a/test/core/end2end/bad_server_response_test.c b/test/core/end2end/bad_server_response_test.c
index 9a3e130..1c4a17f 100644
--- a/test/core/end2end/bad_server_response_test.c
+++ b/test/core/end2end/bad_server_response_test.c
@@ -40,13 +40,14 @@
 #include <string.h>
 
 #include <grpc/grpc.h>
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include <grpc/support/thd.h>
 
-// #include "src/core/ext/transport/chttp2/transport/internal.h"
+#include "src/core/lib/iomgr/sockaddr.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
 #include "test/core/util/port.h"
@@ -88,8 +89,8 @@
   grpc_channel *channel;
   grpc_call *call;
   size_t incoming_data_length;
-  gpr_slice_buffer temp_incoming_buffer;
-  gpr_slice_buffer outgoing_buffer;
+  grpc_slice_buffer temp_incoming_buffer;
+  grpc_slice_buffer outgoing_buffer;
   grpc_endpoint *tcp;
   gpr_atm done_atm;
   bool write_done;
@@ -111,11 +112,11 @@
 }
 
 static void handle_write(grpc_exec_ctx *exec_ctx) {
-  gpr_slice slice = gpr_slice_from_copied_buffer(state.response_payload,
-                                                 state.response_payload_length);
+  grpc_slice slice = grpc_slice_from_copied_buffer(
+      state.response_payload, state.response_payload_length);
 
-  gpr_slice_buffer_reset_and_unref(&state.outgoing_buffer);
-  gpr_slice_buffer_add(&state.outgoing_buffer, slice);
+  grpc_slice_buffer_reset_and_unref(&state.outgoing_buffer);
+  grpc_slice_buffer_add(&state.outgoing_buffer, slice);
   grpc_endpoint_write(exec_ctx, state.tcp, &state.outgoing_buffer, &on_write);
 }
 
@@ -125,8 +126,8 @@
 
   size_t i;
   for (i = 0; i < state.temp_incoming_buffer.count; i++) {
-    char *dump = gpr_dump_slice(state.temp_incoming_buffer.slices[i],
-                                GPR_DUMP_HEX | GPR_DUMP_ASCII);
+    char *dump = grpc_dump_slice(state.temp_incoming_buffer.slices[i],
+                                 GPR_DUMP_HEX | GPR_DUMP_ASCII);
     gpr_log(GPR_DEBUG, "Server received: %s", dump);
     gpr_free(dump);
   }
@@ -147,8 +148,8 @@
   test_tcp_server *server = arg;
   grpc_closure_init(&on_read, handle_read, NULL);
   grpc_closure_init(&on_write, done_write, NULL);
-  gpr_slice_buffer_init(&state.temp_incoming_buffer);
-  gpr_slice_buffer_init(&state.outgoing_buffer);
+  grpc_slice_buffer_init(&state.temp_incoming_buffer);
+  grpc_slice_buffer_init(&state.outgoing_buffer);
   state.tcp = tcp;
   state.incoming_data_length = 0;
   grpc_endpoint_add_to_pollset(exec_ctx, tcp, server->pollset);
@@ -227,8 +228,8 @@
 
 static void cleanup_rpc(void) {
   grpc_event ev;
-  gpr_slice_buffer_destroy(&state.temp_incoming_buffer);
-  gpr_slice_buffer_destroy(&state.outgoing_buffer);
+  grpc_slice_buffer_destroy(&state.temp_incoming_buffer);
+  grpc_slice_buffer_destroy(&state.outgoing_buffer);
   grpc_call_destroy(state.call);
   grpc_completion_queue_shutdown(state.cq);
   do {
diff --git a/test/core/end2end/cq_verifier.c b/test/core/end2end/cq_verifier.c
index 3e7e3f2..5737397 100644
--- a/test/core/end2end/cq_verifier.c
+++ b/test/core/end2end/cq_verifier.c
@@ -105,44 +105,45 @@
   return has_metadata(array->metadata, array->count, key, value);
 }
 
-static gpr_slice merge_slices(gpr_slice *slices, size_t nslices) {
+static grpc_slice merge_slices(grpc_slice *slices, size_t nslices) {
   size_t i;
   size_t len = 0;
   uint8_t *cursor;
-  gpr_slice out;
+  grpc_slice out;
 
   for (i = 0; i < nslices; i++) {
-    len += GPR_SLICE_LENGTH(slices[i]);
+    len += GRPC_SLICE_LENGTH(slices[i]);
   }
 
-  out = gpr_slice_malloc(len);
-  cursor = GPR_SLICE_START_PTR(out);
+  out = grpc_slice_malloc(len);
+  cursor = GRPC_SLICE_START_PTR(out);
 
   for (i = 0; i < nslices; i++) {
-    memcpy(cursor, GPR_SLICE_START_PTR(slices[i]), GPR_SLICE_LENGTH(slices[i]));
-    cursor += GPR_SLICE_LENGTH(slices[i]);
+    memcpy(cursor, GRPC_SLICE_START_PTR(slices[i]),
+           GRPC_SLICE_LENGTH(slices[i]));
+    cursor += GRPC_SLICE_LENGTH(slices[i]);
   }
 
   return out;
 }
 
-int raw_byte_buffer_eq_slice(grpc_byte_buffer *rbb, gpr_slice b) {
-  gpr_slice a;
+int raw_byte_buffer_eq_slice(grpc_byte_buffer *rbb, grpc_slice b) {
+  grpc_slice a;
   int ok;
 
   if (!rbb) return 0;
 
   a = merge_slices(rbb->data.raw.slice_buffer.slices,
                    rbb->data.raw.slice_buffer.count);
-  ok = GPR_SLICE_LENGTH(a) == GPR_SLICE_LENGTH(b) &&
-       0 == memcmp(GPR_SLICE_START_PTR(a), GPR_SLICE_START_PTR(b),
-                   GPR_SLICE_LENGTH(a));
-  gpr_slice_unref(a);
-  gpr_slice_unref(b);
+  ok = GRPC_SLICE_LENGTH(a) == GRPC_SLICE_LENGTH(b) &&
+       0 == memcmp(GRPC_SLICE_START_PTR(a), GRPC_SLICE_START_PTR(b),
+                   GRPC_SLICE_LENGTH(a));
+  grpc_slice_unref(a);
+  grpc_slice_unref(b);
   return ok;
 }
 
-int byte_buffer_eq_slice(grpc_byte_buffer *bb, gpr_slice b) {
+int byte_buffer_eq_slice(grpc_byte_buffer *bb, grpc_slice b) {
   grpc_byte_buffer_reader reader;
   grpc_byte_buffer *rbb;
   int res;
@@ -165,7 +166,7 @@
   GPR_ASSERT(grpc_byte_buffer_reader_init(&reader, bb) &&
              "Couldn't init byte buffer reader");
   rbb = grpc_raw_byte_buffer_from_reader(&reader);
-  res = raw_byte_buffer_eq_slice(rbb, gpr_slice_from_copied_string(str));
+  res = raw_byte_buffer_eq_slice(rbb, grpc_slice_from_copied_string(str));
   grpc_byte_buffer_reader_destroy(&reader);
   grpc_byte_buffer_destroy(rbb);
 
diff --git a/test/core/end2end/cq_verifier.h b/test/core/end2end/cq_verifier.h
index 47464fa..b754de9 100644
--- a/test/core/end2end/cq_verifier.h
+++ b/test/core/end2end/cq_verifier.h
@@ -67,7 +67,7 @@
 #define CQ_EXPECT_COMPLETION(v, tag, success) \
   cq_expect_completion(v, __FILE__, __LINE__, tag, success)
 
-int byte_buffer_eq_slice(grpc_byte_buffer *bb, gpr_slice b);
+int byte_buffer_eq_slice(grpc_byte_buffer *bb, grpc_slice b);
 int byte_buffer_eq_string(grpc_byte_buffer *byte_buffer, const char *string);
 int contains_metadata(grpc_metadata_array *array, const char *key,
                       const char *value);
diff --git a/test/core/end2end/dualstack_socket_test.c b/test/core/end2end/dualstack_socket_test.c
index f427202..11e8604 100644
--- a/test/core/end2end/dualstack_socket_test.c
+++ b/test/core/end2end/dualstack_socket_test.c
@@ -46,8 +46,8 @@
 
 #include "src/core/lib/iomgr/resolve_address.h"
 #include "src/core/lib/iomgr/socket_utils_posix.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
-
 #include "test/core/end2end/cq_verifier.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
@@ -125,17 +125,17 @@
   if (client_host[0] == 'i') {
     /* for ipv4:/ipv6: addresses, concatenate the port to each of the parts */
     size_t i;
-    gpr_slice uri_slice;
-    gpr_slice_buffer uri_parts;
+    grpc_slice uri_slice;
+    grpc_slice_buffer uri_parts;
     char **hosts_with_port;
 
     uri_slice =
-        gpr_slice_new((char *)client_host, strlen(client_host), do_nothing);
-    gpr_slice_buffer_init(&uri_parts);
-    gpr_slice_split(uri_slice, ",", &uri_parts);
+        grpc_slice_new((char *)client_host, strlen(client_host), do_nothing);
+    grpc_slice_buffer_init(&uri_parts);
+    grpc_slice_split(uri_slice, ",", &uri_parts);
     hosts_with_port = gpr_malloc(sizeof(char *) * uri_parts.count);
     for (i = 0; i < uri_parts.count; i++) {
-      char *uri_part_str = gpr_dump_slice(uri_parts.slices[i], GPR_DUMP_ASCII);
+      char *uri_part_str = grpc_dump_slice(uri_parts.slices[i], GPR_DUMP_ASCII);
       gpr_asprintf(&hosts_with_port[i], "%s:%d", uri_part_str, port);
       gpr_free(uri_part_str);
     }
@@ -145,8 +145,8 @@
       gpr_free(hosts_with_port[i]);
     }
     gpr_free(hosts_with_port);
-    gpr_slice_buffer_destroy(&uri_parts);
-    gpr_slice_unref(uri_slice);
+    grpc_slice_buffer_destroy(&uri_parts);
+    grpc_slice_unref(uri_slice);
   } else {
     gpr_join_host_port(&client_hostport, client_host, port);
   }
diff --git a/test/core/end2end/fake_resolver.c b/test/core/end2end/fake_resolver.c
index 51fa8ec..865b55d 100644
--- a/test/core/end2end/fake_resolver.c
+++ b/test/core/end2end/fake_resolver.c
@@ -48,6 +48,7 @@
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/resolve_address.h"
 #include "src/core/lib/iomgr/unix_sockets_posix.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 
 //
@@ -152,17 +153,17 @@
   const bool lb_enabled =
       lb_enabled_qpart != NULL && strcmp("0", lb_enabled_qpart) != 0;
   // Construct addresses.
-  gpr_slice path_slice =
-      gpr_slice_new(args->uri->path, strlen(args->uri->path), do_nothing);
-  gpr_slice_buffer path_parts;
-  gpr_slice_buffer_init(&path_parts);
-  gpr_slice_split(path_slice, ",", &path_parts);
+  grpc_slice path_slice =
+      grpc_slice_new(args->uri->path, strlen(args->uri->path), do_nothing);
+  grpc_slice_buffer path_parts;
+  grpc_slice_buffer_init(&path_parts);
+  grpc_slice_split(path_slice, ",", &path_parts);
   grpc_lb_addresses* addresses =
       grpc_lb_addresses_create(path_parts.count, NULL /* user_data_vtable */);
   bool errors_found = false;
   for (size_t i = 0; i < addresses->num_addresses; i++) {
     grpc_uri ith_uri = *args->uri;
-    char* part_str = gpr_dump_slice(path_parts.slices[i], GPR_DUMP_ASCII);
+    char* part_str = grpc_dump_slice(path_parts.slices[i], GPR_DUMP_ASCII);
     ith_uri.path = part_str;
     if (!parse_ipv4(&ith_uri, &addresses->addresses[i].address)) {
       errors_found = true;
@@ -171,8 +172,8 @@
     addresses->addresses[i].is_balancer = lb_enabled;
     if (errors_found) break;
   }
-  gpr_slice_buffer_destroy(&path_parts);
-  gpr_slice_unref(path_slice);
+  grpc_slice_buffer_destroy(&path_parts);
+  grpc_slice_unref(path_slice);
   if (errors_found) {
     grpc_lb_addresses_destroy(addresses);
     return NULL;
diff --git a/test/core/end2end/fixtures/http_proxy.c b/test/core/end2end/fixtures/http_proxy.c
index 630f47e..57fc4a3 100644
--- a/test/core/end2end/fixtures/http_proxy.c
+++ b/test/core/end2end/fixtures/http_proxy.c
@@ -37,11 +37,11 @@
 
 #include <string.h>
 
+#include <grpc/slice_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/atm.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
@@ -91,12 +91,12 @@
   grpc_closure on_server_read_done;
   grpc_closure on_server_write_done;
 
-  gpr_slice_buffer client_read_buffer;
-  gpr_slice_buffer client_deferred_write_buffer;
-  gpr_slice_buffer client_write_buffer;
-  gpr_slice_buffer server_read_buffer;
-  gpr_slice_buffer server_deferred_write_buffer;
-  gpr_slice_buffer server_write_buffer;
+  grpc_slice_buffer client_read_buffer;
+  grpc_slice_buffer client_deferred_write_buffer;
+  grpc_slice_buffer client_write_buffer;
+  grpc_slice_buffer server_read_buffer;
+  grpc_slice_buffer server_deferred_write_buffer;
+  grpc_slice_buffer server_write_buffer;
 
   grpc_http_parser http_parser;
   grpc_http_request http_request;
@@ -110,12 +110,12 @@
     if (conn->server_endpoint != NULL)
       grpc_endpoint_destroy(exec_ctx, conn->server_endpoint);
     grpc_pollset_set_destroy(conn->pollset_set);
-    gpr_slice_buffer_destroy(&conn->client_read_buffer);
-    gpr_slice_buffer_destroy(&conn->client_deferred_write_buffer);
-    gpr_slice_buffer_destroy(&conn->client_write_buffer);
-    gpr_slice_buffer_destroy(&conn->server_read_buffer);
-    gpr_slice_buffer_destroy(&conn->server_deferred_write_buffer);
-    gpr_slice_buffer_destroy(&conn->server_write_buffer);
+    grpc_slice_buffer_destroy(&conn->client_read_buffer);
+    grpc_slice_buffer_destroy(&conn->client_deferred_write_buffer);
+    grpc_slice_buffer_destroy(&conn->client_write_buffer);
+    grpc_slice_buffer_destroy(&conn->server_read_buffer);
+    grpc_slice_buffer_destroy(&conn->server_deferred_write_buffer);
+    grpc_slice_buffer_destroy(&conn->server_write_buffer);
     grpc_http_parser_destroy(&conn->http_parser);
     grpc_http_request_destroy(&conn->http_request);
     gpr_free(conn);
@@ -146,12 +146,12 @@
     return;
   }
   // Clear write buffer (the data we just wrote).
-  gpr_slice_buffer_reset_and_unref(&conn->client_write_buffer);
+  grpc_slice_buffer_reset_and_unref(&conn->client_write_buffer);
   // If more data was read from the server since we started this write,
   // write that data now.
   if (conn->client_deferred_write_buffer.length > 0) {
-    gpr_slice_buffer_move_into(&conn->client_deferred_write_buffer,
-                               &conn->client_write_buffer);
+    grpc_slice_buffer_move_into(&conn->client_deferred_write_buffer,
+                                &conn->client_write_buffer);
     grpc_endpoint_write(exec_ctx, conn->client_endpoint,
                         &conn->client_write_buffer,
                         &conn->on_client_write_done);
@@ -171,12 +171,12 @@
     return;
   }
   // Clear write buffer (the data we just wrote).
-  gpr_slice_buffer_reset_and_unref(&conn->server_write_buffer);
+  grpc_slice_buffer_reset_and_unref(&conn->server_write_buffer);
   // If more data was read from the client since we started this write,
   // write that data now.
   if (conn->server_deferred_write_buffer.length > 0) {
-    gpr_slice_buffer_move_into(&conn->server_deferred_write_buffer,
-                               &conn->server_write_buffer);
+    grpc_slice_buffer_move_into(&conn->server_deferred_write_buffer,
+                                &conn->server_write_buffer);
     grpc_endpoint_write(exec_ctx, conn->server_endpoint,
                         &conn->server_write_buffer,
                         &conn->on_server_write_done);
@@ -203,11 +203,11 @@
   //
   // Otherwise, move the read data into the write buffer and write it.
   if (conn->server_write_buffer.length > 0) {
-    gpr_slice_buffer_move_into(&conn->client_read_buffer,
-                               &conn->server_deferred_write_buffer);
+    grpc_slice_buffer_move_into(&conn->client_read_buffer,
+                                &conn->server_deferred_write_buffer);
   } else {
-    gpr_slice_buffer_move_into(&conn->client_read_buffer,
-                               &conn->server_write_buffer);
+    grpc_slice_buffer_move_into(&conn->client_read_buffer,
+                                &conn->server_write_buffer);
     gpr_ref(&conn->refcount);
     grpc_endpoint_write(exec_ctx, conn->server_endpoint,
                         &conn->server_write_buffer,
@@ -235,11 +235,11 @@
   //
   // Otherwise, move the read data into the write buffer and write it.
   if (conn->client_write_buffer.length > 0) {
-    gpr_slice_buffer_move_into(&conn->server_read_buffer,
-                               &conn->client_deferred_write_buffer);
+    grpc_slice_buffer_move_into(&conn->server_read_buffer,
+                                &conn->client_deferred_write_buffer);
   } else {
-    gpr_slice_buffer_move_into(&conn->server_read_buffer,
-                               &conn->client_write_buffer);
+    grpc_slice_buffer_move_into(&conn->server_read_buffer,
+                                &conn->client_write_buffer);
     gpr_ref(&conn->refcount);
     grpc_endpoint_write(exec_ctx, conn->client_endpoint,
                         &conn->client_write_buffer,
@@ -260,7 +260,7 @@
     return;
   }
   // Clear write buffer.
-  gpr_slice_buffer_reset_and_unref(&conn->client_write_buffer);
+  grpc_slice_buffer_reset_and_unref(&conn->client_write_buffer);
   // Start reading from both client and server.  One of the read
   // requests inherits our ref to conn, but we need to take a new ref
   // for the other one.
@@ -289,9 +289,9 @@
   // We've established a connection, so send back a 200 response code to
   // the client.
   // The write callback inherits our reference to conn.
-  gpr_slice slice =
-      gpr_slice_from_copied_string("HTTP/1.0 200 connected\r\n\r\n");
-  gpr_slice_buffer_add(&conn->client_write_buffer, slice);
+  grpc_slice slice =
+      grpc_slice_from_copied_string("HTTP/1.0 200 connected\r\n\r\n");
+  grpc_slice_buffer_add(&conn->client_write_buffer, slice);
   grpc_endpoint_write(exec_ctx, conn->client_endpoint,
                       &conn->client_write_buffer,
                       &conn->on_write_response_done);
@@ -313,7 +313,7 @@
   }
   // Read request and feed it to the parser.
   for (size_t i = 0; i < conn->client_read_buffer.count; ++i) {
-    if (GPR_SLICE_LENGTH(conn->client_read_buffer.slices[i]) > 0) {
+    if (GRPC_SLICE_LENGTH(conn->client_read_buffer.slices[i]) > 0) {
       error = grpc_http_parser_parse(&conn->http_parser,
                                      conn->client_read_buffer.slices[i], NULL);
       if (error != GRPC_ERROR_NONE) {
@@ -324,7 +324,7 @@
       }
     }
   }
-  gpr_slice_buffer_reset_and_unref(&conn->client_read_buffer);
+  grpc_slice_buffer_reset_and_unref(&conn->client_read_buffer);
   // If we're not done reading the request, read more data.
   if (conn->http_parser.state != GRPC_HTTP_BODY) {
     grpc_endpoint_read(exec_ctx, conn->client_endpoint,
@@ -384,12 +384,12 @@
   grpc_closure_init(&conn->on_client_write_done, on_client_write_done, conn);
   grpc_closure_init(&conn->on_server_read_done, on_server_read_done, conn);
   grpc_closure_init(&conn->on_server_write_done, on_server_write_done, conn);
-  gpr_slice_buffer_init(&conn->client_read_buffer);
-  gpr_slice_buffer_init(&conn->client_deferred_write_buffer);
-  gpr_slice_buffer_init(&conn->client_write_buffer);
-  gpr_slice_buffer_init(&conn->server_read_buffer);
-  gpr_slice_buffer_init(&conn->server_deferred_write_buffer);
-  gpr_slice_buffer_init(&conn->server_write_buffer);
+  grpc_slice_buffer_init(&conn->client_read_buffer);
+  grpc_slice_buffer_init(&conn->client_deferred_write_buffer);
+  grpc_slice_buffer_init(&conn->client_write_buffer);
+  grpc_slice_buffer_init(&conn->server_read_buffer);
+  grpc_slice_buffer_init(&conn->server_deferred_write_buffer);
+  grpc_slice_buffer_init(&conn->server_write_buffer);
   grpc_http_parser_init(&conn->http_parser, GRPC_HTTP_REQUEST,
                         &conn->http_request);
   grpc_endpoint_read(exec_ctx, conn->client_endpoint, &conn->client_read_buffer,
diff --git a/test/core/end2end/fuzzers/api_fuzzer.c b/test/core/end2end/fuzzers/api_fuzzer.c
index 659f5cf..4c8aafd 100644
--- a/test/core/end2end/fuzzers/api_fuzzer.c
+++ b/test/core/end2end/fuzzers/api_fuzzer.c
@@ -137,10 +137,10 @@
 }
 
 static grpc_byte_buffer *read_message(input_stream *inp) {
-  gpr_slice slice = gpr_slice_malloc(read_uint22(inp));
-  memset(GPR_SLICE_START_PTR(slice), 0, GPR_SLICE_LENGTH(slice));
+  grpc_slice slice = grpc_slice_malloc(read_uint22(inp));
+  memset(GRPC_SLICE_START_PTR(slice), 0, GRPC_SLICE_LENGTH(slice));
   grpc_byte_buffer *out = grpc_raw_byte_buffer_create(&slice, 1);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   return out;
 }
 
diff --git a/test/core/end2end/fuzzers/client_fuzzer.c b/test/core/end2end/fuzzers/client_fuzzer.c
index d104fe5..c5260cd 100644
--- a/test/core/end2end/fuzzers/client_fuzzer.c
+++ b/test/core/end2end/fuzzers/client_fuzzer.c
@@ -44,7 +44,7 @@
 bool squelch = true;
 bool leak_check = true;
 
-static void discard_write(gpr_slice slice) {}
+static void discard_write(grpc_slice slice) {}
 
 static void *tag(int n) { return (void *)(uintptr_t)n; }
 
@@ -121,7 +121,7 @@
 
   grpc_mock_endpoint_put_read(
       &exec_ctx, mock_endpoint,
-      gpr_slice_from_copied_buffer((const char *)data, size));
+      grpc_slice_from_copied_buffer((const char *)data, size));
 
   grpc_event ev;
   while (1) {
diff --git a/test/core/end2end/fuzzers/server_fuzzer.c b/test/core/end2end/fuzzers/server_fuzzer.c
index ae4c8e6..164022e 100644
--- a/test/core/end2end/fuzzers/server_fuzzer.c
+++ b/test/core/end2end/fuzzers/server_fuzzer.c
@@ -41,7 +41,7 @@
 bool squelch = true;
 bool leak_check = true;
 
-static void discard_write(gpr_slice slice) {}
+static void discard_write(grpc_slice slice) {}
 
 static void *tag(int n) { return (void *)(uintptr_t)n; }
 static int detag(void *p) { return (int)(uintptr_t)p; }
@@ -63,7 +63,7 @@
   grpc_resource_quota_internal_unref(&exec_ctx, resource_quota);
   grpc_mock_endpoint_put_read(
       &exec_ctx, mock_endpoint,
-      gpr_slice_from_copied_buffer((const char *)data, size));
+      grpc_slice_from_copied_buffer((const char *)data, size));
 
   grpc_server *server = grpc_server_create(NULL, NULL);
   grpc_completion_queue *cq = grpc_completion_queue_create(NULL);
diff --git a/test/core/end2end/invalid_call_argument_test.c b/test/core/end2end/invalid_call_argument_test.c
index 2b9904a..765b6ad 100644
--- a/test/core/end2end/invalid_call_argument_test.c
+++ b/test/core/end2end/invalid_call_argument_test.c
@@ -251,7 +251,8 @@
   gpr_log(GPR_INFO, "test_send_messages_at_the_same_time");
 
   grpc_op *op;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   prepare_test(1);
diff --git a/test/core/end2end/tests/binary_metadata.c b/test/core/end2end/tests/binary_metadata.c
index f1ebbbb..a13613a 100644
--- a/test/core/end2end/tests/binary_metadata.c
+++ b/test/core/end2end/tests/binary_metadata.c
@@ -100,8 +100,10 @@
     grpc_end2end_test_config config) {
   grpc_call *c;
   grpc_call *s;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
-  gpr_slice response_payload_slice = gpr_slice_from_copied_string("hello you");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
+  grpc_slice response_payload_slice =
+      grpc_slice_from_copied_string("hello you");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
diff --git a/test/core/end2end/tests/call_creds.c b/test/core/end2end/tests/call_creds.c
index 8bde79c..606938f 100644
--- a/test/core/end2end/tests/call_creds.c
+++ b/test/core/end2end/tests/call_creds.c
@@ -135,8 +135,10 @@
     override_mode mode) {
   grpc_call *c;
   grpc_call *s;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
-  gpr_slice response_payload_slice = gpr_slice_from_copied_string("hello you");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
+  grpc_slice response_payload_slice =
+      grpc_slice_from_copied_string("hello you");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
@@ -392,7 +394,8 @@
   char *details = NULL;
   size_t details_capacity = 0;
   grpc_byte_buffer *response_payload_recv = NULL;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_call_credentials *creds;
diff --git a/test/core/end2end/tests/cancel_after_accept.c b/test/core/end2end/tests/cancel_after_accept.c
index fd03432..428a2d1 100644
--- a/test/core/end2end/tests/cancel_after_accept.c
+++ b/test/core/end2end/tests/cancel_after_accept.c
@@ -122,8 +122,10 @@
   size_t details_capacity = 0;
   grpc_byte_buffer *request_payload_recv = NULL;
   grpc_byte_buffer *response_payload_recv = NULL;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
-  gpr_slice response_payload_slice = gpr_slice_from_copied_string("hello you");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
+  grpc_slice response_payload_slice =
+      grpc_slice_from_copied_string("hello you");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
diff --git a/test/core/end2end/tests/cancel_after_client_done.c b/test/core/end2end/tests/cancel_after_client_done.c
index 26de66e..7742f9d 100644
--- a/test/core/end2end/tests/cancel_after_client_done.c
+++ b/test/core/end2end/tests/cancel_after_client_done.c
@@ -117,8 +117,10 @@
   size_t details_capacity = 0;
   grpc_byte_buffer *request_payload_recv = NULL;
   grpc_byte_buffer *response_payload_recv = NULL;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
-  gpr_slice response_payload_slice = gpr_slice_from_copied_string("hello you");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
+  grpc_slice response_payload_slice =
+      grpc_slice_from_copied_string("hello you");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
diff --git a/test/core/end2end/tests/cancel_after_invoke.c b/test/core/end2end/tests/cancel_after_invoke.c
index afbfb02..c3c5418 100644
--- a/test/core/end2end/tests/cancel_after_invoke.c
+++ b/test/core/end2end/tests/cancel_after_invoke.c
@@ -116,7 +116,8 @@
   char *details = NULL;
   size_t details_capacity = 0;
   grpc_byte_buffer *response_payload_recv = NULL;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
 
diff --git a/test/core/end2end/tests/cancel_before_invoke.c b/test/core/end2end/tests/cancel_before_invoke.c
index d0eeed8..d484282 100644
--- a/test/core/end2end/tests/cancel_before_invoke.c
+++ b/test/core/end2end/tests/cancel_before_invoke.c
@@ -114,7 +114,8 @@
   char *details = NULL;
   size_t details_capacity = 0;
   grpc_byte_buffer *response_payload_recv = NULL;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
 
diff --git a/test/core/end2end/tests/compressed_payload.c b/test/core/end2end/tests/compressed_payload.c
index 166e8ef..81fc709 100644
--- a/test/core/end2end/tests/compressed_payload.c
+++ b/test/core/end2end/tests/compressed_payload.c
@@ -110,7 +110,7 @@
     grpc_status_code expected_error, grpc_metadata *client_metadata) {
   grpc_call *c;
   grpc_call *s;
-  gpr_slice request_payload_slice;
+  grpc_slice request_payload_slice;
   grpc_byte_buffer *request_payload;
   gpr_timespec deadline = five_seconds_time();
   grpc_channel_args *client_args;
@@ -133,7 +133,7 @@
 
   memset(str, 'x', 1023);
   str[1023] = '\0';
-  request_payload_slice = gpr_slice_from_copied_string(str);
+  request_payload_slice = grpc_slice_from_copied_string(str);
   request_payload = grpc_raw_byte_buffer_create(&request_payload_slice, 1);
 
   client_args = grpc_channel_args_set_compression_algorithm(
@@ -258,7 +258,7 @@
 
   cq_verifier_destroy(cqv);
 
-  gpr_slice_unref(request_payload_slice);
+  grpc_slice_unref(request_payload_slice);
   grpc_byte_buffer_destroy(request_payload);
   grpc_byte_buffer_destroy(request_payload_recv);
 
@@ -280,7 +280,7 @@
     grpc_compression_level server_compression_level) {
   grpc_call *c;
   grpc_call *s;
-  gpr_slice request_payload_slice;
+  grpc_slice request_payload_slice;
   grpc_byte_buffer *request_payload;
   gpr_timespec deadline = five_seconds_time();
   grpc_channel_args *client_args;
@@ -310,8 +310,9 @@
   memset(response_str, 'y', 1023);
   response_str[1023] = '\0';
 
-  request_payload_slice = gpr_slice_from_copied_string(request_str);
-  gpr_slice response_payload_slice = gpr_slice_from_copied_string(response_str);
+  request_payload_slice = grpc_slice_from_copied_string(request_str);
+  grpc_slice response_payload_slice =
+      grpc_slice_from_copied_string(response_str);
 
   client_args = grpc_channel_args_set_compression_algorithm(
       NULL, default_client_channel_compression_algorithm);
@@ -463,8 +464,8 @@
     grpc_byte_buffer_destroy(response_payload_recv);
   }
 
-  gpr_slice_unref(request_payload_slice);
-  gpr_slice_unref(response_payload_slice);
+  grpc_slice_unref(request_payload_slice);
+  grpc_slice_unref(response_payload_slice);
 
   memset(ops, 0, sizeof(ops));
   op = ops;
diff --git a/test/core/end2end/tests/filter_call_init_fails.c b/test/core/end2end/tests/filter_call_init_fails.c
index 84d95b2..b5668ea 100644
--- a/test/core/end2end/tests/filter_call_init_fails.c
+++ b/test/core/end2end/tests/filter_call_init_fails.c
@@ -108,7 +108,8 @@
 static void test_request(grpc_end2end_test_config config) {
   grpc_call *c;
   grpc_call *s;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   gpr_timespec deadline = five_seconds_time();
diff --git a/test/core/end2end/tests/filter_causes_close.c b/test/core/end2end/tests/filter_causes_close.c
index 51e56d7..70b33fa 100644
--- a/test/core/end2end/tests/filter_causes_close.c
+++ b/test/core/end2end/tests/filter_causes_close.c
@@ -104,7 +104,8 @@
 static void test_request(grpc_end2end_test_config config) {
   grpc_call *c;
   grpc_call *s;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   gpr_timespec deadline = five_seconds_time();
@@ -209,8 +210,8 @@
   call_data *calld = elem->call_data;
   if (error == GRPC_ERROR_NONE) {
     // close the stream with an error.
-    gpr_slice message =
-        gpr_slice_from_copied_string("Failure that's not preventable.");
+    grpc_slice message =
+        grpc_slice_from_copied_string("Failure that's not preventable.");
     grpc_transport_stream_op *op = grpc_make_transport_stream_op(NULL);
     grpc_transport_stream_op_add_close(op, GRPC_STATUS_PERMISSION_DENIED,
                                        &message);
diff --git a/test/core/end2end/tests/invoke_large_request.c b/test/core/end2end/tests/invoke_large_request.c
index edb655f..24abfa2 100644
--- a/test/core/end2end/tests/invoke_large_request.c
+++ b/test/core/end2end/tests/invoke_large_request.c
@@ -94,9 +94,9 @@
   grpc_completion_queue_destroy(f->cq);
 }
 
-static gpr_slice large_slice(void) {
-  gpr_slice slice = gpr_slice_malloc(1000000);
-  memset(GPR_SLICE_START_PTR(slice), 'x', GPR_SLICE_LENGTH(slice));
+static grpc_slice large_slice(void) {
+  grpc_slice slice = grpc_slice_malloc(1000000);
+  memset(GRPC_SLICE_START_PTR(slice), 'x', GRPC_SLICE_LENGTH(slice));
   return slice;
 }
 
@@ -120,8 +120,8 @@
       begin_test(config, name, &channel_args, &channel_args);
   gpr_free(name);
 
-  gpr_slice request_payload_slice = large_slice();
-  gpr_slice response_payload_slice = large_slice();
+  grpc_slice request_payload_slice = large_slice();
+  grpc_slice response_payload_slice = large_slice();
   grpc_call *c;
   grpc_call *s;
   grpc_byte_buffer *request_payload =
@@ -265,8 +265,8 @@
   grpc_byte_buffer_destroy(response_payload);
   grpc_byte_buffer_destroy(request_payload_recv);
   grpc_byte_buffer_destroy(response_payload_recv);
-  gpr_slice_unref(request_payload_slice);
-  gpr_slice_unref(response_payload_slice);
+  grpc_slice_unref(request_payload_slice);
+  grpc_slice_unref(response_payload_slice);
 
   end_test(&f);
   config.tear_down_data(&f);
diff --git a/test/core/end2end/tests/large_metadata.c b/test/core/end2end/tests/large_metadata.c
index 499c564..69b4b24 100644
--- a/test/core/end2end/tests/large_metadata.c
+++ b/test/core/end2end/tests/large_metadata.c
@@ -99,7 +99,8 @@
 static void test_request_with_large_metadata(grpc_end2end_test_config config) {
   grpc_call *c;
   grpc_call *s;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   gpr_timespec deadline = five_seconds_time();
diff --git a/test/core/end2end/tests/load_reporting_hook.c b/test/core/end2end/tests/load_reporting_hook.c
index ca4e270..5b75f26 100644
--- a/test/core/end2end/tests/load_reporting_hook.c
+++ b/test/core/end2end/tests/load_reporting_hook.c
@@ -125,8 +125,9 @@
     grpc_end2end_test_config config, grpc_end2end_test_fixture f,
     const char *method_name, const char *request_msg, const char *response_msg,
     grpc_metadata *initial_lr_metadata, grpc_metadata *trailing_lr_metadata) {
-  gpr_slice request_payload_slice = gpr_slice_from_static_string(request_msg);
-  gpr_slice response_payload_slice = gpr_slice_from_static_string(response_msg);
+  grpc_slice request_payload_slice = grpc_slice_from_static_string(request_msg);
+  grpc_slice response_payload_slice =
+      grpc_slice_from_static_string(response_msg);
   grpc_call *c;
   grpc_call *s;
   grpc_byte_buffer *request_payload =
diff --git a/test/core/end2end/tests/max_message_length.c b/test/core/end2end/tests/max_message_length.c
index b416627..0ddd7be 100644
--- a/test/core/end2end/tests/max_message_length.c
+++ b/test/core/end2end/tests/max_message_length.c
@@ -118,7 +118,8 @@
   cq_verifier *cqv;
   grpc_op ops[6];
   grpc_op *op;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *recv_payload = NULL;
@@ -291,8 +292,8 @@
   cq_verifier *cqv;
   grpc_op ops[6];
   grpc_op *op;
-  gpr_slice response_payload_slice =
-      gpr_slice_from_copied_string("hello world");
+  grpc_slice response_payload_slice =
+      grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *response_payload =
       grpc_raw_byte_buffer_create(&response_payload_slice, 1);
   grpc_byte_buffer *recv_payload = NULL;
diff --git a/test/core/end2end/tests/network_status_change.c b/test/core/end2end/tests/network_status_change.c
index 96e909e..2ebda2c 100644
--- a/test/core/end2end/tests/network_status_change.c
+++ b/test/core/end2end/tests/network_status_change.c
@@ -102,7 +102,8 @@
 static void test_invoke_network_status_change(grpc_end2end_test_config config) {
   grpc_call *c;
   grpc_call *s;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   gpr_timespec deadline = five_seconds_time();
diff --git a/test/core/end2end/tests/payload.c b/test/core/end2end/tests/payload.c
index 17cea48..db2e5c8 100644
--- a/test/core/end2end/tests/payload.c
+++ b/test/core/end2end/tests/payload.c
@@ -95,8 +95,9 @@
   grpc_completion_queue_destroy(f->cq);
 }
 
-/* Creates and returns a gpr_slice containing random alphanumeric characters. */
-static gpr_slice generate_random_slice() {
+/* Creates and returns a grpc_slice containing random alphanumeric characters.
+ */
+static grpc_slice generate_random_slice() {
   size_t i;
   static const char chars[] = "abcdefghijklmnopqrstuvwxyz1234567890";
   char *output;
@@ -106,7 +107,7 @@
     output[i] = chars[rand() % (int)(sizeof(chars) - 1)];
   }
   output[output_size - 1] = '\0';
-  gpr_slice out = gpr_slice_from_copied_string(output);
+  grpc_slice out = grpc_slice_from_copied_string(output);
   gpr_free(output);
   return out;
 }
@@ -116,8 +117,8 @@
   /* Create large request and response bodies. These are big enough to require
    * multiple round trips to deliver to the peer, and their exact contents of
    * will be verified on completion. */
-  gpr_slice request_payload_slice = generate_random_slice();
-  gpr_slice response_payload_slice = generate_random_slice();
+  grpc_slice request_payload_slice = generate_random_slice();
+  grpc_slice response_payload_slice = generate_random_slice();
 
   grpc_call *c;
   grpc_call *s;
diff --git a/test/core/end2end/tests/ping_pong_streaming.c b/test/core/end2end/tests/ping_pong_streaming.c
index 52f0d70..0a1566e 100644
--- a/test/core/end2end/tests/ping_pong_streaming.c
+++ b/test/core/end2end/tests/ping_pong_streaming.c
@@ -120,8 +120,10 @@
   grpc_byte_buffer *response_payload;
   grpc_byte_buffer *response_payload_recv;
   int i;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
-  gpr_slice response_payload_slice = gpr_slice_from_copied_string("hello you");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
+  grpc_slice response_payload_slice =
+      grpc_slice_from_copied_string("hello you");
 
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq, "/foo",
@@ -229,8 +231,8 @@
     grpc_byte_buffer_destroy(response_payload_recv);
   }
 
-  gpr_slice_unref(request_payload_slice);
-  gpr_slice_unref(response_payload_slice);
+  grpc_slice_unref(request_payload_slice);
+  grpc_slice_unref(response_payload_slice);
 
   memset(ops, 0, sizeof(ops));
   op = ops;
diff --git a/test/core/end2end/tests/request_with_flags.c b/test/core/end2end/tests/request_with_flags.c
index f96ef6a..9c18e15 100644
--- a/test/core/end2end/tests/request_with_flags.c
+++ b/test/core/end2end/tests/request_with_flags.c
@@ -100,7 +100,8 @@
     grpc_end2end_test_config config, uint32_t *flags_for_op,
     grpc_call_error call_start_batch_expected_result) {
   grpc_call *c;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   gpr_timespec deadline = five_seconds_time();
diff --git a/test/core/end2end/tests/request_with_payload.c b/test/core/end2end/tests/request_with_payload.c
index 359f4e9..c84e3ac 100644
--- a/test/core/end2end/tests/request_with_payload.c
+++ b/test/core/end2end/tests/request_with_payload.c
@@ -99,7 +99,8 @@
 static void test_invoke_request_with_payload(grpc_end2end_test_config config) {
   grpc_call *c;
   grpc_call *s;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   gpr_timespec deadline = five_seconds_time();
diff --git a/test/core/end2end/tests/resource_quota_server.c b/test/core/end2end/tests/resource_quota_server.c
index 35f200b..7ec33e9 100644
--- a/test/core/end2end/tests/resource_quota_server.c
+++ b/test/core/end2end/tests/resource_quota_server.c
@@ -95,8 +95,9 @@
   grpc_completion_queue_destroy(f->cq);
 }
 
-/* Creates and returns a gpr_slice containing random alphanumeric characters. */
-static gpr_slice generate_random_slice() {
+/* Creates and returns a grpc_slice containing random alphanumeric characters.
+ */
+static grpc_slice generate_random_slice() {
   size_t i;
   static const char chars[] = "abcdefghijklmnopqrstuvwxyz1234567890";
   char *output;
@@ -106,7 +107,7 @@
     output[i] = chars[rand() % (int)(sizeof(chars) - 1)];
   }
   output[output_size - 1] = '\0';
-  gpr_slice out = gpr_slice_from_copied_string(output);
+  grpc_slice out = grpc_slice_from_copied_string(output);
   gpr_free(output);
   return out;
 }
@@ -135,7 +136,7 @@
   /* Create large request and response bodies. These are big enough to require
    * multiple round trips to deliver to the peer, and their exact contents of
    * will be verified on completion. */
-  gpr_slice request_payload_slice = generate_random_slice();
+  grpc_slice request_payload_slice = generate_random_slice();
 
   grpc_call **client_calls = malloc(sizeof(grpc_call *) * NUM_CALLS);
   grpc_call **server_calls = malloc(sizeof(grpc_call *) * NUM_CALLS);
@@ -358,7 +359,7 @@
   GPR_ASSERT(cancelled_calls_on_server >= 0.9 * cancelled_calls_on_client);
 
   grpc_byte_buffer_destroy(request_payload);
-  gpr_slice_unref(request_payload_slice);
+  grpc_slice_unref(request_payload_slice);
   grpc_resource_quota_unref(resource_quota);
 
   free(client_calls);
diff --git a/test/core/end2end/tests/simple_cacheable_request.c b/test/core/end2end/tests/simple_cacheable_request.c
index 9f6a6a0..2c229b0 100644
--- a/test/core/end2end/tests/simple_cacheable_request.c
+++ b/test/core/end2end/tests/simple_cacheable_request.c
@@ -102,8 +102,10 @@
     grpc_end2end_test_config config) {
   grpc_call *c;
   grpc_call *s;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
-  gpr_slice response_payload_slice = gpr_slice_from_copied_string("hello you");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
+  grpc_slice response_payload_slice =
+      grpc_slice_from_copied_string("hello you");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
diff --git a/test/core/end2end/tests/simple_metadata.c b/test/core/end2end/tests/simple_metadata.c
index 7b8adb1..5490cc2 100644
--- a/test/core/end2end/tests/simple_metadata.c
+++ b/test/core/end2end/tests/simple_metadata.c
@@ -100,8 +100,10 @@
     grpc_end2end_test_config config) {
   grpc_call *c;
   grpc_call *s;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
-  gpr_slice response_payload_slice = gpr_slice_from_copied_string("hello you");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
+  grpc_slice response_payload_slice =
+      grpc_slice_from_copied_string("hello you");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
diff --git a/test/core/end2end/tests/streaming_error_response.c b/test/core/end2end/tests/streaming_error_response.c
index 7b5315d..583bc92 100644
--- a/test/core/end2end/tests/streaming_error_response.c
+++ b/test/core/end2end/tests/streaming_error_response.c
@@ -101,10 +101,10 @@
 static void test(grpc_end2end_test_config config, bool request_status_early) {
   grpc_call *c;
   grpc_call *s;
-  gpr_slice response_payload1_slice = gpr_slice_from_copied_string("hello");
+  grpc_slice response_payload1_slice = grpc_slice_from_copied_string("hello");
   grpc_byte_buffer *response_payload1 =
       grpc_raw_byte_buffer_create(&response_payload1_slice, 1);
-  gpr_slice response_payload2_slice = gpr_slice_from_copied_string("world");
+  grpc_slice response_payload2_slice = grpc_slice_from_copied_string("world");
   grpc_byte_buffer *response_payload2 =
       grpc_raw_byte_buffer_create(&response_payload2_slice, 1);
   gpr_timespec deadline = five_seconds_time();
diff --git a/test/core/end2end/tests/trailing_metadata.c b/test/core/end2end/tests/trailing_metadata.c
index 87e29a9..9fd4fbc 100644
--- a/test/core/end2end/tests/trailing_metadata.c
+++ b/test/core/end2end/tests/trailing_metadata.c
@@ -100,8 +100,10 @@
     grpc_end2end_test_config config) {
   grpc_call *c;
   grpc_call *s;
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
-  gpr_slice response_payload_slice = gpr_slice_from_copied_string("hello you");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
+  grpc_slice response_payload_slice =
+      grpc_slice_from_copied_string("hello you");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
diff --git a/test/core/fling/client.c b/test/core/fling/client.c
index bcc195a..e717b7f 100644
--- a/test/core/fling/client.c
+++ b/test/core/fling/client.c
@@ -155,7 +155,7 @@
 };
 
 int main(int argc, char **argv) {
-  gpr_slice slice = gpr_slice_from_copied_string("x");
+  grpc_slice slice = grpc_slice_from_copied_string("x");
   double start, stop;
   unsigned i;
 
@@ -241,7 +241,7 @@
   } while (event.type != GRPC_QUEUE_SHUTDOWN);
   grpc_completion_queue_destroy(cq);
   grpc_byte_buffer_destroy(the_buffer);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
 
   gpr_log(GPR_INFO, "latency (50/95/99/99.9): %f/%f/%f/%f",
           gpr_histogram_percentile(histogram, 50),
diff --git a/test/core/handshake/client_ssl.c b/test/core/handshake/client_ssl.c
index ee90f0b..44efe4d 100644
--- a/test/core/handshake/client_ssl.c
+++ b/test/core/handshake/client_ssl.c
@@ -231,16 +231,16 @@
 
   // Load key pair and establish client SSL credentials.
   grpc_ssl_pem_key_cert_pair pem_key_cert_pair;
-  gpr_slice ca_slice, cert_slice, key_slice;
+  grpc_slice ca_slice, cert_slice, key_slice;
   GPR_ASSERT(GRPC_LOG_IF_ERROR("load_file",
                                grpc_load_file(SSL_CA_PATH, 1, &ca_slice)));
   GPR_ASSERT(GRPC_LOG_IF_ERROR("load_file",
                                grpc_load_file(SSL_CERT_PATH, 1, &cert_slice)));
   GPR_ASSERT(GRPC_LOG_IF_ERROR("load_file",
                                grpc_load_file(SSL_KEY_PATH, 1, &key_slice)));
-  const char *ca_cert = (const char *)GPR_SLICE_START_PTR(ca_slice);
-  pem_key_cert_pair.private_key = (const char *)GPR_SLICE_START_PTR(key_slice);
-  pem_key_cert_pair.cert_chain = (const char *)GPR_SLICE_START_PTR(cert_slice);
+  const char *ca_cert = (const char *)GRPC_SLICE_START_PTR(ca_slice);
+  pem_key_cert_pair.private_key = (const char *)GRPC_SLICE_START_PTR(key_slice);
+  pem_key_cert_pair.cert_chain = (const char *)GRPC_SLICE_START_PTR(cert_slice);
   grpc_channel_credentials *ssl_creds =
       grpc_ssl_credentials_create(ca_cert, &pem_key_cert_pair, NULL);
 
@@ -286,9 +286,9 @@
 
   grpc_channel_destroy(channel);
   grpc_channel_credentials_release(ssl_creds);
-  gpr_slice_unref(cert_slice);
-  gpr_slice_unref(key_slice);
-  gpr_slice_unref(ca_slice);
+  grpc_slice_unref(cert_slice);
+  grpc_slice_unref(key_slice);
+  grpc_slice_unref(ca_slice);
 
   gpr_thd_join(thdid);
 
diff --git a/test/core/handshake/server_ssl.c b/test/core/handshake/server_ssl.c
index 3e89f8e..f39b004 100644
--- a/test/core/handshake/server_ssl.c
+++ b/test/core/handshake/server_ssl.c
@@ -84,16 +84,16 @@
 
   // Load key pair and establish server SSL credentials.
   grpc_ssl_pem_key_cert_pair pem_key_cert_pair;
-  gpr_slice ca_slice, cert_slice, key_slice;
+  grpc_slice ca_slice, cert_slice, key_slice;
   GPR_ASSERT(GRPC_LOG_IF_ERROR("load_file",
                                grpc_load_file(SSL_CA_PATH, 1, &ca_slice)));
   GPR_ASSERT(GRPC_LOG_IF_ERROR("load_file",
                                grpc_load_file(SSL_CERT_PATH, 1, &cert_slice)));
   GPR_ASSERT(GRPC_LOG_IF_ERROR("load_file",
                                grpc_load_file(SSL_KEY_PATH, 1, &key_slice)));
-  const char *ca_cert = (const char *)GPR_SLICE_START_PTR(ca_slice);
-  pem_key_cert_pair.private_key = (const char *)GPR_SLICE_START_PTR(key_slice);
-  pem_key_cert_pair.cert_chain = (const char *)GPR_SLICE_START_PTR(cert_slice);
+  const char *ca_cert = (const char *)GRPC_SLICE_START_PTR(ca_slice);
+  pem_key_cert_pair.private_key = (const char *)GRPC_SLICE_START_PTR(key_slice);
+  pem_key_cert_pair.cert_chain = (const char *)GRPC_SLICE_START_PTR(cert_slice);
   grpc_server_credentials *ssl_creds = grpc_ssl_server_credentials_create(
       ca_cert, &pem_key_cert_pair, 1, 0, NULL);
 
@@ -129,9 +129,9 @@
   grpc_server_destroy(server);
   grpc_completion_queue_destroy(cq);
   grpc_server_credentials_release(ssl_creds);
-  gpr_slice_unref(cert_slice);
-  gpr_slice_unref(key_slice);
-  gpr_slice_unref(ca_slice);
+  grpc_slice_unref(cert_slice);
+  grpc_slice_unref(key_slice);
+  grpc_slice_unref(ca_slice);
 }
 
 // This test launches a gRPC server on a separate thread and then establishes a
diff --git a/test/core/http/format_request_test.c b/test/core/http/format_request_test.c
index 0d21e12..290990c 100644
--- a/test/core/http/format_request_test.c
+++ b/test/core/http/format_request_test.c
@@ -41,7 +41,7 @@
 static void test_format_get_request(void) {
   grpc_http_header hdr = {"x-yz", "abc"};
   grpc_httpcli_request req;
-  gpr_slice slice;
+  grpc_slice slice;
 
   memset(&req, 0, sizeof(req));
   req.host = "example.com";
@@ -51,22 +51,22 @@
 
   slice = grpc_httpcli_format_get_request(&req);
 
-  GPR_ASSERT(0 == gpr_slice_str_cmp(slice,
-                                    "GET /index.html HTTP/1.0\r\n"
-                                    "Host: example.com\r\n"
-                                    "Connection: close\r\n"
-                                    "User-Agent: " GRPC_HTTPCLI_USER_AGENT
-                                    "\r\n"
-                                    "x-yz: abc\r\n"
-                                    "\r\n"));
+  GPR_ASSERT(0 == grpc_slice_str_cmp(slice,
+                                     "GET /index.html HTTP/1.0\r\n"
+                                     "Host: example.com\r\n"
+                                     "Connection: close\r\n"
+                                     "User-Agent: " GRPC_HTTPCLI_USER_AGENT
+                                     "\r\n"
+                                     "x-yz: abc\r\n"
+                                     "\r\n"));
 
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
 }
 
 static void test_format_post_request(void) {
   grpc_http_header hdr = {"x-yz", "abc"};
   grpc_httpcli_request req;
-  gpr_slice slice;
+  grpc_slice slice;
   char body_bytes[] = "fake body";
   size_t body_len = 9;
 
@@ -78,25 +78,25 @@
 
   slice = grpc_httpcli_format_post_request(&req, body_bytes, body_len);
 
-  GPR_ASSERT(0 == gpr_slice_str_cmp(slice,
-                                    "POST /index.html HTTP/1.0\r\n"
-                                    "Host: example.com\r\n"
-                                    "Connection: close\r\n"
-                                    "User-Agent: " GRPC_HTTPCLI_USER_AGENT
-                                    "\r\n"
-                                    "x-yz: abc\r\n"
-                                    "Content-Type: text/plain\r\n"
-                                    "Content-Length: 9\r\n"
-                                    "\r\n"
-                                    "fake body"));
+  GPR_ASSERT(0 == grpc_slice_str_cmp(slice,
+                                     "POST /index.html HTTP/1.0\r\n"
+                                     "Host: example.com\r\n"
+                                     "Connection: close\r\n"
+                                     "User-Agent: " GRPC_HTTPCLI_USER_AGENT
+                                     "\r\n"
+                                     "x-yz: abc\r\n"
+                                     "Content-Type: text/plain\r\n"
+                                     "Content-Length: 9\r\n"
+                                     "\r\n"
+                                     "fake body"));
 
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
 }
 
 static void test_format_post_request_no_body(void) {
   grpc_http_header hdr = {"x-yz", "abc"};
   grpc_httpcli_request req;
-  gpr_slice slice;
+  grpc_slice slice;
 
   memset(&req, 0, sizeof(req));
   req.host = "example.com";
@@ -106,22 +106,22 @@
 
   slice = grpc_httpcli_format_post_request(&req, NULL, 0);
 
-  GPR_ASSERT(0 == gpr_slice_str_cmp(slice,
-                                    "POST /index.html HTTP/1.0\r\n"
-                                    "Host: example.com\r\n"
-                                    "Connection: close\r\n"
-                                    "User-Agent: " GRPC_HTTPCLI_USER_AGENT
-                                    "\r\n"
-                                    "x-yz: abc\r\n"
-                                    "\r\n"));
+  GPR_ASSERT(0 == grpc_slice_str_cmp(slice,
+                                     "POST /index.html HTTP/1.0\r\n"
+                                     "Host: example.com\r\n"
+                                     "Connection: close\r\n"
+                                     "User-Agent: " GRPC_HTTPCLI_USER_AGENT
+                                     "\r\n"
+                                     "x-yz: abc\r\n"
+                                     "\r\n"));
 
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
 }
 
 static void test_format_post_request_content_type_override(void) {
   grpc_http_header hdrs[2];
   grpc_httpcli_request req;
-  gpr_slice slice;
+  grpc_slice slice;
   char body_bytes[] = "fake%20body";
   size_t body_len = 11;
 
@@ -137,7 +137,7 @@
 
   slice = grpc_httpcli_format_post_request(&req, body_bytes, body_len);
 
-  GPR_ASSERT(0 == gpr_slice_str_cmp(
+  GPR_ASSERT(0 == grpc_slice_str_cmp(
                       slice,
                       "POST /index.html HTTP/1.0\r\n"
                       "Host: example.com\r\n"
@@ -149,7 +149,7 @@
                       "\r\n"
                       "fake%20body"));
 
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
 }
 
 int main(int argc, char **argv) {
diff --git a/test/core/http/parser_test.c b/test/core/http/parser_test.c
index 2fc354d..4f1445d 100644
--- a/test/core/http/parser_test.c
+++ b/test/core/http/parser_test.c
@@ -48,23 +48,23 @@
                                   grpc_http_version expect_version,
                                   char *expect_path, char *expect_body, ...) {
   grpc_http_parser parser;
-  gpr_slice input_slice = gpr_slice_from_copied_string(request_text);
+  grpc_slice input_slice = grpc_slice_from_copied_string(request_text);
   size_t num_slices;
   size_t i;
-  gpr_slice *slices;
+  grpc_slice *slices;
   va_list args;
   grpc_http_request request;
   memset(&request, 0, sizeof(request));
 
   grpc_split_slices(split_mode, &input_slice, 1, &slices, &num_slices);
-  gpr_slice_unref(input_slice);
+  grpc_slice_unref(input_slice);
 
   grpc_http_parser_init(&parser, GRPC_HTTP_REQUEST, &request);
 
   for (i = 0; i < num_slices; i++) {
     GPR_ASSERT(grpc_http_parser_parse(&parser, slices[i], NULL) ==
                GRPC_ERROR_NONE);
-    gpr_slice_unref(slices[i]);
+    grpc_slice_unref(slices[i]);
   }
   GPR_ASSERT(grpc_http_parser_eof(&parser) == GRPC_ERROR_NONE);
 
@@ -105,23 +105,23 @@
 static void test_succeeds(grpc_slice_split_mode split_mode, char *response_text,
                           int expect_status, char *expect_body, ...) {
   grpc_http_parser parser;
-  gpr_slice input_slice = gpr_slice_from_copied_string(response_text);
+  grpc_slice input_slice = grpc_slice_from_copied_string(response_text);
   size_t num_slices;
   size_t i;
-  gpr_slice *slices;
+  grpc_slice *slices;
   va_list args;
   grpc_http_response response;
   memset(&response, 0, sizeof(response));
 
   grpc_split_slices(split_mode, &input_slice, 1, &slices, &num_slices);
-  gpr_slice_unref(input_slice);
+  grpc_slice_unref(input_slice);
 
   grpc_http_parser_init(&parser, GRPC_HTTP_RESPONSE, &response);
 
   for (i = 0; i < num_slices; i++) {
     GPR_ASSERT(grpc_http_parser_parse(&parser, slices[i], NULL) ==
                GRPC_ERROR_NONE);
-    gpr_slice_unref(slices[i]);
+    grpc_slice_unref(slices[i]);
   }
   GPR_ASSERT(grpc_http_parser_eof(&parser) == GRPC_ERROR_NONE);
 
@@ -158,16 +158,16 @@
 
 static void test_fails(grpc_slice_split_mode split_mode, char *response_text) {
   grpc_http_parser parser;
-  gpr_slice input_slice = gpr_slice_from_copied_string(response_text);
+  grpc_slice input_slice = grpc_slice_from_copied_string(response_text);
   size_t num_slices;
   size_t i;
-  gpr_slice *slices;
+  grpc_slice *slices;
   grpc_error *error = GRPC_ERROR_NONE;
   grpc_http_response response;
   memset(&response, 0, sizeof(response));
 
   grpc_split_slices(split_mode, &input_slice, 1, &slices, &num_slices);
-  gpr_slice_unref(input_slice);
+  grpc_slice_unref(input_slice);
 
   grpc_http_parser_init(&parser, GRPC_HTTP_RESPONSE, &response);
 
@@ -175,7 +175,7 @@
     if (GRPC_ERROR_NONE == error) {
       error = grpc_http_parser_parse(&parser, slices[i], NULL);
     }
-    gpr_slice_unref(slices[i]);
+    grpc_slice_unref(slices[i]);
   }
   if (GRPC_ERROR_NONE == error) {
     error = grpc_http_parser_eof(&parser);
@@ -191,16 +191,16 @@
 static void test_request_fails(grpc_slice_split_mode split_mode,
                                char *request_text) {
   grpc_http_parser parser;
-  gpr_slice input_slice = gpr_slice_from_copied_string(request_text);
+  grpc_slice input_slice = grpc_slice_from_copied_string(request_text);
   size_t num_slices;
   size_t i;
-  gpr_slice *slices;
+  grpc_slice *slices;
   grpc_error *error = GRPC_ERROR_NONE;
   grpc_http_request request;
   memset(&request, 0, sizeof(request));
 
   grpc_split_slices(split_mode, &input_slice, 1, &slices, &num_slices);
-  gpr_slice_unref(input_slice);
+  grpc_slice_unref(input_slice);
 
   grpc_http_parser_init(&parser, GRPC_HTTP_REQUEST, &request);
 
@@ -208,7 +208,7 @@
     if (error == GRPC_ERROR_NONE) {
       error = grpc_http_parser_parse(&parser, slices[i], NULL);
     }
-    gpr_slice_unref(slices[i]);
+    grpc_slice_unref(slices[i]);
   }
   if (error == GRPC_ERROR_NONE) {
     error = grpc_http_parser_eof(&parser);
diff --git a/test/core/http/request_fuzzer.c b/test/core/http/request_fuzzer.c
index bb6cb92..98e2c96 100644
--- a/test/core/http/request_fuzzer.c
+++ b/test/core/http/request_fuzzer.c
@@ -47,10 +47,10 @@
   grpc_http_request request;
   memset(&request, 0, sizeof(request));
   grpc_http_parser_init(&parser, GRPC_HTTP_REQUEST, &request);
-  gpr_slice slice = gpr_slice_from_copied_buffer((const char *)data, size);
+  grpc_slice slice = grpc_slice_from_copied_buffer((const char *)data, size);
   GRPC_ERROR_UNREF(grpc_http_parser_parse(&parser, slice, NULL));
   GRPC_ERROR_UNREF(grpc_http_parser_eof(&parser));
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   grpc_http_parser_destroy(&parser);
   grpc_http_request_destroy(&request);
   return 0;
diff --git a/test/core/http/response_fuzzer.c b/test/core/http/response_fuzzer.c
index 4393840..fff0411 100644
--- a/test/core/http/response_fuzzer.c
+++ b/test/core/http/response_fuzzer.c
@@ -46,10 +46,10 @@
   grpc_http_response response;
   memset(&response, 0, sizeof(response));
   grpc_http_parser_init(&parser, GRPC_HTTP_RESPONSE, &response);
-  gpr_slice slice = gpr_slice_from_copied_buffer((const char *)data, size);
+  grpc_slice slice = grpc_slice_from_copied_buffer((const char *)data, size);
   GRPC_ERROR_UNREF(grpc_http_parser_parse(&parser, slice, NULL));
   GRPC_ERROR_UNREF(grpc_http_parser_eof(&parser));
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   grpc_http_parser_destroy(&parser);
   grpc_http_response_destroy(&response);
   return 0;
diff --git a/test/core/internal_api_canaries/transport.c b/test/core/internal_api_canaries/transport.c
index 0617865..2989f59 100644
--- a/test/core/internal_api_canaries/transport.c
+++ b/test/core/internal_api_canaries/transport.c
@@ -69,7 +69,7 @@
   grpc_transport_perform_op(&transport, NULL, NULL);
   grpc_transport_ping(&transport, NULL);
   grpc_transport_goaway(&transport, GRPC_STATUS_UNAVAILABLE,
-                        gpr_slice_malloc(0));
+                        grpc_slice_malloc(0));
   grpc_transport_close(&transport);
   grpc_transport_destroy(&transport, NULL);
   GPR_ASSERT("xyz" == grpc_transport_get_peer(&transport, NULL));
diff --git a/test/core/iomgr/endpoint_tests.c b/test/core/iomgr/endpoint_tests.c
index b79c22e..8186ea7 100644
--- a/test/core/iomgr/endpoint_tests.c
+++ b/test/core/iomgr/endpoint_tests.c
@@ -36,9 +36,9 @@
 #include <stdbool.h>
 #include <sys/types.h>
 
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
 #include "test/core/util/test_config.h"
@@ -62,18 +62,18 @@
 static gpr_mu *g_mu;
 static grpc_pollset *g_pollset;
 
-size_t count_slices(gpr_slice *slices, size_t nslices, int *current_data) {
+size_t count_slices(grpc_slice *slices, size_t nslices, int *current_data) {
   size_t num_bytes = 0;
   size_t i;
   size_t j;
   unsigned char *buf;
   for (i = 0; i < nslices; ++i) {
-    buf = GPR_SLICE_START_PTR(slices[i]);
-    for (j = 0; j < GPR_SLICE_LENGTH(slices[i]); ++j) {
+    buf = GRPC_SLICE_START_PTR(slices[i]);
+    for (j = 0; j < GRPC_SLICE_LENGTH(slices[i]); ++j) {
       GPR_ASSERT(buf[j] == *current_data);
       *current_data = (*current_data + 1) % 256;
     }
-    num_bytes += GPR_SLICE_LENGTH(slices[i]);
+    num_bytes += GRPC_SLICE_LENGTH(slices[i]);
   }
   return num_bytes;
 }
@@ -87,10 +87,10 @@
 
 static void end_test(grpc_endpoint_test_config config) { config.clean_up(); }
 
-static gpr_slice *allocate_blocks(size_t num_bytes, size_t slice_size,
-                                  size_t *num_blocks, uint8_t *current_data) {
+static grpc_slice *allocate_blocks(size_t num_bytes, size_t slice_size,
+                                   size_t *num_blocks, uint8_t *current_data) {
   size_t nslices = num_bytes / slice_size + (num_bytes % slice_size ? 1 : 0);
-  gpr_slice *slices = gpr_malloc(sizeof(gpr_slice) * nslices);
+  grpc_slice *slices = gpr_malloc(sizeof(grpc_slice) * nslices);
   size_t num_bytes_left = num_bytes;
   size_t i;
   size_t j;
@@ -98,11 +98,11 @@
   *num_blocks = nslices;
 
   for (i = 0; i < nslices; ++i) {
-    slices[i] = gpr_slice_malloc(slice_size > num_bytes_left ? num_bytes_left
-                                                             : slice_size);
-    num_bytes_left -= GPR_SLICE_LENGTH(slices[i]);
-    buf = GPR_SLICE_START_PTR(slices[i]);
-    for (j = 0; j < GPR_SLICE_LENGTH(slices[i]); ++j) {
+    slices[i] = grpc_slice_malloc(slice_size > num_bytes_left ? num_bytes_left
+                                                              : slice_size);
+    num_bytes_left -= GRPC_SLICE_LENGTH(slices[i]);
+    buf = GRPC_SLICE_START_PTR(slices[i]);
+    for (j = 0; j < GRPC_SLICE_LENGTH(slices[i]); ++j) {
       buf[j] = *current_data;
       (*current_data)++;
     }
@@ -122,8 +122,8 @@
   uint8_t current_write_data;
   int read_done;
   int write_done;
-  gpr_slice_buffer incoming;
-  gpr_slice_buffer outgoing;
+  grpc_slice_buffer incoming;
+  grpc_slice_buffer outgoing;
   grpc_closure done_read;
   grpc_closure done_write;
 };
@@ -149,7 +149,7 @@
 static void read_and_write_test_write_handler(grpc_exec_ctx *exec_ctx,
                                               void *data, grpc_error *error) {
   struct read_and_write_test_state *state = data;
-  gpr_slice *slices = NULL;
+  grpc_slice *slices = NULL;
   size_t nslices;
 
   if (error == GRPC_ERROR_NONE) {
@@ -161,8 +161,8 @@
     if (state->current_write_size != 0) {
       slices = allocate_blocks(state->current_write_size, 8192, &nslices,
                                &state->current_write_data);
-      gpr_slice_buffer_reset_and_unref(&state->outgoing);
-      gpr_slice_buffer_addn(&state->outgoing, slices, nslices);
+      grpc_slice_buffer_reset_and_unref(&state->outgoing);
+      grpc_slice_buffer_addn(&state->outgoing, slices, nslices);
       grpc_endpoint_write(exec_ctx, state->write_ep, &state->outgoing,
                           &state->done_write);
       gpr_free(slices);
@@ -214,8 +214,8 @@
   grpc_closure_init(&state.done_read, read_and_write_test_read_handler, &state);
   grpc_closure_init(&state.done_write, read_and_write_test_write_handler,
                     &state);
-  gpr_slice_buffer_init(&state.outgoing);
-  gpr_slice_buffer_init(&state.incoming);
+  grpc_slice_buffer_init(&state.outgoing);
+  grpc_slice_buffer_init(&state.incoming);
 
   /* Get started by pretending an initial write completed */
   /* NOTE: Sets up initial conditions so we can have the same write handler
@@ -249,8 +249,8 @@
   grpc_exec_ctx_flush(&exec_ctx);
 
   end_test(config);
-  gpr_slice_buffer_destroy(&state.outgoing);
-  gpr_slice_buffer_destroy(&state.incoming);
+  grpc_slice_buffer_destroy(&state.outgoing);
+  grpc_slice_buffer_destroy(&state.incoming);
   grpc_endpoint_destroy(&exec_ctx, state.read_ep);
   grpc_endpoint_destroy(&exec_ctx, state.write_ep);
   grpc_exec_ctx_finish(&exec_ctx);
@@ -284,8 +284,8 @@
       begin_test(config, "multiple_shutdown_test", 128);
   int fail_count = 0;
 
-  gpr_slice_buffer slice_buffer;
-  gpr_slice_buffer_init(&slice_buffer);
+  grpc_slice_buffer slice_buffer;
+  grpc_slice_buffer_init(&slice_buffer);
 
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
   grpc_endpoint_add_to_pollset(&exec_ctx, f.client_ep, g_pollset);
@@ -297,14 +297,14 @@
   grpc_endpoint_read(&exec_ctx, f.client_ep, &slice_buffer,
                      grpc_closure_create(inc_on_failure, &fail_count));
   wait_for_fail_count(&exec_ctx, &fail_count, 2);
-  gpr_slice_buffer_add(&slice_buffer, gpr_slice_from_copied_string("a"));
+  grpc_slice_buffer_add(&slice_buffer, grpc_slice_from_copied_string("a"));
   grpc_endpoint_write(&exec_ctx, f.client_ep, &slice_buffer,
                       grpc_closure_create(inc_on_failure, &fail_count));
   wait_for_fail_count(&exec_ctx, &fail_count, 3);
   grpc_endpoint_shutdown(&exec_ctx, f.client_ep);
   wait_for_fail_count(&exec_ctx, &fail_count, 3);
 
-  gpr_slice_buffer_destroy(&slice_buffer);
+  grpc_slice_buffer_destroy(&slice_buffer);
 
   grpc_endpoint_destroy(&exec_ctx, f.client_ep);
   grpc_endpoint_destroy(&exec_ctx, f.server_ep);
diff --git a/test/core/iomgr/load_file_test.c b/test/core/iomgr/load_file_test.c
index f70295a..8714e1f 100644
--- a/test/core/iomgr/load_file_test.c
+++ b/test/core/iomgr/load_file_test.c
@@ -34,9 +34,9 @@
 #include <stdio.h>
 #include <string.h>
 
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 
 #include "src/core/lib/iomgr/load_file.h"
 #include "src/core/lib/support/string.h"
@@ -49,8 +49,8 @@
 
 static void test_load_empty_file(void) {
   FILE *tmp = NULL;
-  gpr_slice slice;
-  gpr_slice slice_with_null_term;
+  grpc_slice slice;
+  grpc_slice slice_with_null_term;
   grpc_error *error;
   char *tmp_name;
 
@@ -63,22 +63,22 @@
 
   error = grpc_load_file(tmp_name, 0, &slice);
   GPR_ASSERT(error == GRPC_ERROR_NONE);
-  GPR_ASSERT(GPR_SLICE_LENGTH(slice) == 0);
+  GPR_ASSERT(GRPC_SLICE_LENGTH(slice) == 0);
 
   error = grpc_load_file(tmp_name, 1, &slice_with_null_term);
   GPR_ASSERT(error == GRPC_ERROR_NONE);
-  GPR_ASSERT(GPR_SLICE_LENGTH(slice_with_null_term) == 1);
-  GPR_ASSERT(GPR_SLICE_START_PTR(slice_with_null_term)[0] == 0);
+  GPR_ASSERT(GRPC_SLICE_LENGTH(slice_with_null_term) == 1);
+  GPR_ASSERT(GRPC_SLICE_START_PTR(slice_with_null_term)[0] == 0);
 
   remove(tmp_name);
   gpr_free(tmp_name);
-  gpr_slice_unref(slice);
-  gpr_slice_unref(slice_with_null_term);
+  grpc_slice_unref(slice);
+  grpc_slice_unref(slice_with_null_term);
 }
 
 static void test_load_failure(void) {
   FILE *tmp = NULL;
-  gpr_slice slice;
+  grpc_slice slice;
   grpc_error *error;
   char *tmp_name;
 
@@ -93,15 +93,15 @@
   error = grpc_load_file(tmp_name, 0, &slice);
   GPR_ASSERT(error != GRPC_ERROR_NONE);
   GRPC_ERROR_UNREF(error);
-  GPR_ASSERT(GPR_SLICE_LENGTH(slice) == 0);
+  GPR_ASSERT(GRPC_SLICE_LENGTH(slice) == 0);
   gpr_free(tmp_name);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
 }
 
 static void test_load_small_file(void) {
   FILE *tmp = NULL;
-  gpr_slice slice;
-  gpr_slice slice_with_null_term;
+  grpc_slice slice;
+  grpc_slice slice_with_null_term;
   grpc_error *error;
   char *tmp_name;
   const char *blah = "blah";
@@ -116,24 +116,24 @@
 
   error = grpc_load_file(tmp_name, 0, &slice);
   GPR_ASSERT(error == GRPC_ERROR_NONE);
-  GPR_ASSERT(GPR_SLICE_LENGTH(slice) == strlen(blah));
-  GPR_ASSERT(!memcmp(GPR_SLICE_START_PTR(slice), blah, strlen(blah)));
+  GPR_ASSERT(GRPC_SLICE_LENGTH(slice) == strlen(blah));
+  GPR_ASSERT(!memcmp(GRPC_SLICE_START_PTR(slice), blah, strlen(blah)));
 
   error = grpc_load_file(tmp_name, 1, &slice_with_null_term);
   GPR_ASSERT(error == GRPC_ERROR_NONE);
-  GPR_ASSERT(GPR_SLICE_LENGTH(slice_with_null_term) == (strlen(blah) + 1));
-  GPR_ASSERT(strcmp((const char *)GPR_SLICE_START_PTR(slice_with_null_term),
+  GPR_ASSERT(GRPC_SLICE_LENGTH(slice_with_null_term) == (strlen(blah) + 1));
+  GPR_ASSERT(strcmp((const char *)GRPC_SLICE_START_PTR(slice_with_null_term),
                     blah) == 0);
 
   remove(tmp_name);
   gpr_free(tmp_name);
-  gpr_slice_unref(slice);
-  gpr_slice_unref(slice_with_null_term);
+  grpc_slice_unref(slice);
+  grpc_slice_unref(slice_with_null_term);
 }
 
 static void test_load_big_file(void) {
   FILE *tmp = NULL;
-  gpr_slice slice;
+  grpc_slice slice;
   grpc_error *error;
   char *tmp_name;
   static const size_t buffer_size = 124631;
@@ -153,15 +153,15 @@
 
   error = grpc_load_file(tmp_name, 0, &slice);
   GPR_ASSERT(error == GRPC_ERROR_NONE);
-  GPR_ASSERT(GPR_SLICE_LENGTH(slice) == buffer_size);
-  current = GPR_SLICE_START_PTR(slice);
+  GPR_ASSERT(GRPC_SLICE_LENGTH(slice) == buffer_size);
+  current = GRPC_SLICE_START_PTR(slice);
   for (i = 0; i < buffer_size; i++) {
     GPR_ASSERT(current[i] == 42);
   }
 
   remove(tmp_name);
   gpr_free(tmp_name);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   gpr_free(buffer);
 }
 
diff --git a/test/core/iomgr/resource_quota_test.c b/test/core/iomgr/resource_quota_test.c
index 22c4e4e..a82d44f 100644
--- a/test/core/iomgr/resource_quota_test.c
+++ b/test/core/iomgr/resource_quota_test.c
@@ -620,8 +620,8 @@
   int num_allocs = 0;
   grpc_resource_user_slice_allocator_init(&alloc, usr, inc_int_cb, &num_allocs);
 
-  gpr_slice_buffer buffer;
-  gpr_slice_buffer_init(&buffer);
+  grpc_slice_buffer buffer;
+  grpc_slice_buffer_init(&buffer);
 
   {
     const int start_allocs = num_allocs;
@@ -631,7 +631,7 @@
     GPR_ASSERT(num_allocs == start_allocs + 1);
   }
 
-  gpr_slice_buffer_destroy(&buffer);
+  grpc_slice_buffer_destroy(&buffer);
   destroy_user(usr);
   grpc_resource_quota_unref(q);
 }
@@ -649,8 +649,8 @@
   int num_allocs = 0;
   grpc_resource_user_slice_allocator_init(&alloc, usr, inc_int_cb, &num_allocs);
 
-  gpr_slice_buffer buffer;
-  gpr_slice_buffer_init(&buffer);
+  grpc_slice_buffer buffer;
+  grpc_slice_buffer_init(&buffer);
 
   {
     const int start_allocs = num_allocs;
@@ -667,7 +667,7 @@
   }
 
   grpc_resource_quota_unref(q);
-  gpr_slice_buffer_destroy(&buffer);
+  grpc_slice_buffer_destroy(&buffer);
 }
 
 int main(int argc, char **argv) {
diff --git a/test/core/iomgr/tcp_posix_test.c b/test/core/iomgr/tcp_posix_test.c
index 29f12a5..5eafa57 100644
--- a/test/core/iomgr/tcp_posix_test.c
+++ b/test/core/iomgr/tcp_posix_test.c
@@ -124,22 +124,22 @@
   grpc_endpoint *ep;
   size_t read_bytes;
   size_t target_read_bytes;
-  gpr_slice_buffer incoming;
+  grpc_slice_buffer incoming;
   grpc_closure read_cb;
 };
 
-static size_t count_slices(gpr_slice *slices, size_t nslices,
+static size_t count_slices(grpc_slice *slices, size_t nslices,
                            int *current_data) {
   size_t num_bytes = 0;
   unsigned i, j;
   unsigned char *buf;
   for (i = 0; i < nslices; ++i) {
-    buf = GPR_SLICE_START_PTR(slices[i]);
-    for (j = 0; j < GPR_SLICE_LENGTH(slices[i]); ++j) {
+    buf = GRPC_SLICE_START_PTR(slices[i]);
+    for (j = 0; j < GRPC_SLICE_LENGTH(slices[i]); ++j) {
       GPR_ASSERT(buf[j] == *current_data);
       *current_data = (*current_data + 1) % 256;
     }
-    num_bytes += GPR_SLICE_LENGTH(slices[i]);
+    num_bytes += GRPC_SLICE_LENGTH(slices[i]);
   }
   return num_bytes;
 }
@@ -193,7 +193,7 @@
   state.ep = ep;
   state.read_bytes = 0;
   state.target_read_bytes = written_bytes;
-  gpr_slice_buffer_init(&state.incoming);
+  grpc_slice_buffer_init(&state.incoming);
   grpc_closure_init(&state.read_cb, read_cb, &state);
 
   grpc_endpoint_read(&exec_ctx, ep, &state.incoming, &state.read_cb);
@@ -212,7 +212,7 @@
   GPR_ASSERT(state.read_bytes == state.target_read_bytes);
   gpr_mu_unlock(g_mu);
 
-  gpr_slice_buffer_destroy(&state.incoming);
+  grpc_slice_buffer_destroy(&state.incoming);
   grpc_endpoint_destroy(&exec_ctx, ep);
   grpc_exec_ctx_finish(&exec_ctx);
 }
@@ -244,7 +244,7 @@
   state.ep = ep;
   state.read_bytes = 0;
   state.target_read_bytes = (size_t)written_bytes;
-  gpr_slice_buffer_init(&state.incoming);
+  grpc_slice_buffer_init(&state.incoming);
   grpc_closure_init(&state.read_cb, read_cb, &state);
 
   grpc_endpoint_read(&exec_ctx, ep, &state.incoming, &state.read_cb);
@@ -263,7 +263,7 @@
   GPR_ASSERT(state.read_bytes == state.target_read_bytes);
   gpr_mu_unlock(g_mu);
 
-  gpr_slice_buffer_destroy(&state.incoming);
+  grpc_slice_buffer_destroy(&state.incoming);
   grpc_endpoint_destroy(&exec_ctx, ep);
   grpc_exec_ctx_finish(&exec_ctx);
 }
@@ -273,21 +273,21 @@
   int write_done;
 };
 
-static gpr_slice *allocate_blocks(size_t num_bytes, size_t slice_size,
-                                  size_t *num_blocks, uint8_t *current_data) {
+static grpc_slice *allocate_blocks(size_t num_bytes, size_t slice_size,
+                                   size_t *num_blocks, uint8_t *current_data) {
   size_t nslices = num_bytes / slice_size + (num_bytes % slice_size ? 1u : 0u);
-  gpr_slice *slices = gpr_malloc(sizeof(gpr_slice) * nslices);
+  grpc_slice *slices = gpr_malloc(sizeof(grpc_slice) * nslices);
   size_t num_bytes_left = num_bytes;
   unsigned i, j;
   unsigned char *buf;
   *num_blocks = nslices;
 
   for (i = 0; i < nslices; ++i) {
-    slices[i] = gpr_slice_malloc(slice_size > num_bytes_left ? num_bytes_left
-                                                             : slice_size);
-    num_bytes_left -= GPR_SLICE_LENGTH(slices[i]);
-    buf = GPR_SLICE_START_PTR(slices[i]);
-    for (j = 0; j < GPR_SLICE_LENGTH(slices[i]); ++j) {
+    slices[i] = grpc_slice_malloc(slice_size > num_bytes_left ? num_bytes_left
+                                                              : slice_size);
+    num_bytes_left -= GRPC_SLICE_LENGTH(slices[i]);
+    buf = GRPC_SLICE_START_PTR(slices[i]);
+    for (j = 0; j < GRPC_SLICE_LENGTH(slices[i]); ++j) {
       buf[j] = *current_data;
       (*current_data)++;
     }
@@ -357,9 +357,9 @@
   grpc_endpoint *ep;
   struct write_socket_state state;
   size_t num_blocks;
-  gpr_slice *slices;
+  grpc_slice *slices;
   uint8_t current_data = 0;
-  gpr_slice_buffer outgoing;
+  grpc_slice_buffer outgoing;
   grpc_closure write_done_closure;
   gpr_timespec deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(20);
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
@@ -382,8 +382,8 @@
 
   slices = allocate_blocks(num_bytes, slice_size, &num_blocks, &current_data);
 
-  gpr_slice_buffer_init(&outgoing);
-  gpr_slice_buffer_addn(&outgoing, slices, num_blocks);
+  grpc_slice_buffer_init(&outgoing);
+  grpc_slice_buffer_addn(&outgoing, slices, num_blocks);
   grpc_closure_init(&write_done_closure, write_done, &state);
 
   grpc_endpoint_write(&exec_ctx, ep, &outgoing, &write_done_closure);
@@ -404,7 +404,7 @@
   }
   gpr_mu_unlock(g_mu);
 
-  gpr_slice_buffer_destroy(&outgoing);
+  grpc_slice_buffer_destroy(&outgoing);
   grpc_endpoint_destroy(&exec_ctx, ep);
   gpr_free(slices);
   grpc_exec_ctx_finish(&exec_ctx);
@@ -451,7 +451,7 @@
   state.ep = ep;
   state.read_bytes = 0;
   state.target_read_bytes = written_bytes;
-  gpr_slice_buffer_init(&state.incoming);
+  grpc_slice_buffer_init(&state.incoming);
   grpc_closure_init(&state.read_cb, read_cb, &state);
 
   grpc_endpoint_read(&exec_ctx, ep, &state.incoming, &state.read_cb);
@@ -472,7 +472,7 @@
   GPR_ASSERT(state.read_bytes == state.target_read_bytes);
   gpr_mu_unlock(g_mu);
 
-  gpr_slice_buffer_destroy(&state.incoming);
+  grpc_slice_buffer_destroy(&state.incoming);
   grpc_tcp_destroy_and_release_fd(&exec_ctx, ep, &fd, &fd_released_cb);
   grpc_exec_ctx_flush(&exec_ctx);
   gpr_mu_lock(g_mu);
diff --git a/test/core/nanopb/fuzzer_response.c b/test/core/nanopb/fuzzer_response.c
index a82f20d..202c120 100644
--- a/test/core/nanopb/fuzzer_response.c
+++ b/test/core/nanopb/fuzzer_response.c
@@ -45,11 +45,11 @@
 
 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
   if (squelch) gpr_set_log_function(dont_log);
-  gpr_slice slice = gpr_slice_from_copied_buffer((const char *)data, size);
+  grpc_slice slice = grpc_slice_from_copied_buffer((const char *)data, size);
   grpc_grpclb_initial_response *response;
   if ((response = grpc_grpclb_initial_response_parse(slice))) {
     grpc_grpclb_initial_response_destroy(response);
   }
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   return 0;
 }
diff --git a/test/core/nanopb/fuzzer_serverlist.c b/test/core/nanopb/fuzzer_serverlist.c
index 9700bf1..b225ae0 100644
--- a/test/core/nanopb/fuzzer_serverlist.c
+++ b/test/core/nanopb/fuzzer_serverlist.c
@@ -45,11 +45,11 @@
 
 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
   if (squelch) gpr_set_log_function(dont_log);
-  gpr_slice slice = gpr_slice_from_copied_buffer((const char *)data, size);
+  grpc_slice slice = grpc_slice_from_copied_buffer((const char *)data, size);
   grpc_grpclb_serverlist *serverlist;
   if ((serverlist = grpc_grpclb_response_parse_serverlist(slice))) {
     grpc_grpclb_destroy_serverlist(serverlist);
   }
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   return 0;
 }
diff --git a/test/core/security/b64_test.c b/test/core/security/b64_test.c
index b26bd02..af883f5 100644
--- a/test/core/security/b64_test.c
+++ b/test/core/security/b64_test.c
@@ -35,9 +35,9 @@
 
 #include <string.h>
 
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include "test/core/util/test_config.h"
 
 static int buffers_are_equal(const unsigned char *buf1,
@@ -57,12 +57,12 @@
   const char *hello = "hello";
   char *hello_b64 =
       grpc_base64_encode(hello, strlen(hello), url_safe, multiline);
-  gpr_slice hello_slice = grpc_base64_decode(hello_b64, url_safe);
-  GPR_ASSERT(GPR_SLICE_LENGTH(hello_slice) == strlen(hello));
-  GPR_ASSERT(strncmp((const char *)GPR_SLICE_START_PTR(hello_slice), hello,
-                     GPR_SLICE_LENGTH(hello_slice)) == 0);
+  grpc_slice hello_slice = grpc_base64_decode(hello_b64, url_safe);
+  GPR_ASSERT(GRPC_SLICE_LENGTH(hello_slice) == strlen(hello));
+  GPR_ASSERT(strncmp((const char *)GRPC_SLICE_START_PTR(hello_slice), hello,
+                     GRPC_SLICE_LENGTH(hello_slice)) == 0);
 
-  gpr_slice_unref(hello_slice);
+  grpc_slice_unref(hello_slice);
   gpr_free(hello_b64);
 }
 
@@ -70,17 +70,17 @@
   unsigned char orig[256];
   size_t i;
   char *b64;
-  gpr_slice orig_decoded;
+  grpc_slice orig_decoded;
   for (i = 0; i < sizeof(orig); i++) orig[i] = (uint8_t)i;
 
   /* Try all the different paddings. */
   for (i = 0; i < 3; i++) {
     b64 = grpc_base64_encode(orig, sizeof(orig) - i, url_safe, multiline);
     orig_decoded = grpc_base64_decode(b64, url_safe);
-    GPR_ASSERT(GPR_SLICE_LENGTH(orig_decoded) == (sizeof(orig) - i));
-    GPR_ASSERT(buffers_are_equal(orig, GPR_SLICE_START_PTR(orig_decoded),
+    GPR_ASSERT(GRPC_SLICE_LENGTH(orig_decoded) == (sizeof(orig) - i));
+    GPR_ASSERT(buffers_are_equal(orig, GRPC_SLICE_START_PTR(orig_decoded),
                                  sizeof(orig) - i));
-    gpr_slice_unref(orig_decoded);
+    grpc_slice_unref(orig_decoded);
     gpr_free(b64);
   }
 }
@@ -121,21 +121,21 @@
   unsigned char orig[256];
   size_t i;
   char *b64;
-  gpr_slice orig_decoded;
+  grpc_slice orig_decoded;
   int url_safe = 1;
   for (i = 0; i < sizeof(orig); i++) orig[i] = (uint8_t)i;
 
   b64 = grpc_base64_encode(orig, sizeof(orig), url_safe, 0);
   orig_decoded = grpc_base64_decode(b64, !url_safe);
-  GPR_ASSERT(GPR_SLICE_IS_EMPTY(orig_decoded));
+  GPR_ASSERT(GRPC_SLICE_IS_EMPTY(orig_decoded));
   gpr_free(b64);
-  gpr_slice_unref(orig_decoded);
+  grpc_slice_unref(orig_decoded);
 
   b64 = grpc_base64_encode(orig, sizeof(orig), !url_safe, 0);
   orig_decoded = grpc_base64_decode(b64, url_safe);
-  GPR_ASSERT(GPR_SLICE_IS_EMPTY(orig_decoded));
+  GPR_ASSERT(GRPC_SLICE_IS_EMPTY(orig_decoded));
   gpr_free(b64);
-  gpr_slice_unref(orig_decoded);
+  grpc_slice_unref(orig_decoded);
 }
 
 static void test_rfc4648_test_vectors(void) {
@@ -171,40 +171,40 @@
 }
 
 static void test_unpadded_decode(void) {
-  gpr_slice decoded;
+  grpc_slice decoded;
 
   decoded = grpc_base64_decode("Zm9vYmFy", 0);
-  GPR_ASSERT(!GPR_SLICE_IS_EMPTY(decoded));
-  GPR_ASSERT(gpr_slice_str_cmp(decoded, "foobar") == 0);
-  gpr_slice_unref(decoded);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
+  GPR_ASSERT(grpc_slice_str_cmp(decoded, "foobar") == 0);
+  grpc_slice_unref(decoded);
 
   decoded = grpc_base64_decode("Zm9vYmE", 0);
-  GPR_ASSERT(!GPR_SLICE_IS_EMPTY(decoded));
-  GPR_ASSERT(gpr_slice_str_cmp(decoded, "fooba") == 0);
-  gpr_slice_unref(decoded);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
+  GPR_ASSERT(grpc_slice_str_cmp(decoded, "fooba") == 0);
+  grpc_slice_unref(decoded);
 
   decoded = grpc_base64_decode("Zm9vYg", 0);
-  GPR_ASSERT(!GPR_SLICE_IS_EMPTY(decoded));
-  GPR_ASSERT(gpr_slice_str_cmp(decoded, "foob") == 0);
-  gpr_slice_unref(decoded);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
+  GPR_ASSERT(grpc_slice_str_cmp(decoded, "foob") == 0);
+  grpc_slice_unref(decoded);
 
   decoded = grpc_base64_decode("Zm9v", 0);
-  GPR_ASSERT(!GPR_SLICE_IS_EMPTY(decoded));
-  GPR_ASSERT(gpr_slice_str_cmp(decoded, "foo") == 0);
-  gpr_slice_unref(decoded);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
+  GPR_ASSERT(grpc_slice_str_cmp(decoded, "foo") == 0);
+  grpc_slice_unref(decoded);
 
   decoded = grpc_base64_decode("Zm8", 0);
-  GPR_ASSERT(!GPR_SLICE_IS_EMPTY(decoded));
-  GPR_ASSERT(gpr_slice_str_cmp(decoded, "fo") == 0);
-  gpr_slice_unref(decoded);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
+  GPR_ASSERT(grpc_slice_str_cmp(decoded, "fo") == 0);
+  grpc_slice_unref(decoded);
 
   decoded = grpc_base64_decode("Zg", 0);
-  GPR_ASSERT(!GPR_SLICE_IS_EMPTY(decoded));
-  GPR_ASSERT(gpr_slice_str_cmp(decoded, "f") == 0);
-  gpr_slice_unref(decoded);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
+  GPR_ASSERT(grpc_slice_str_cmp(decoded, "f") == 0);
+  grpc_slice_unref(decoded);
 
   decoded = grpc_base64_decode("", 0);
-  GPR_ASSERT(GPR_SLICE_IS_EMPTY(decoded));
+  GPR_ASSERT(GRPC_SLICE_IS_EMPTY(decoded));
 }
 
 int main(int argc, char **argv) {
diff --git a/test/core/security/create_jwt.c b/test/core/security/create_jwt.c
index 1bd135f..741ace9 100644
--- a/test/core/security/create_jwt.c
+++ b/test/core/security/create_jwt.c
@@ -37,21 +37,21 @@
 #include "src/core/lib/iomgr/load_file.h"
 #include "src/core/lib/security/credentials/jwt/jwt_credentials.h"
 
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/cmdline.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 
 void create_jwt(const char *json_key_file_path, const char *service_url,
                 const char *scope) {
   grpc_auth_json_key key;
   char *jwt;
-  gpr_slice json_key_data;
+  grpc_slice json_key_data;
   GPR_ASSERT(GRPC_LOG_IF_ERROR(
       "load_file", grpc_load_file(json_key_file_path, 1, &json_key_data)));
   key = grpc_auth_json_key_create_from_string(
-      (const char *)GPR_SLICE_START_PTR(json_key_data));
-  gpr_slice_unref(json_key_data);
+      (const char *)GRPC_SLICE_START_PTR(json_key_data));
+  grpc_slice_unref(json_key_data);
   if (!grpc_auth_json_key_is_valid(&key)) {
     fprintf(stderr, "Could not parse json key.\n");
     exit(1);
diff --git a/test/core/security/credentials_test.c b/test/core/security/credentials_test.c
index b74baa3..d4c7550 100644
--- a/test/core/security/credentials_test.c
+++ b/test/core/security/credentials_test.c
@@ -187,14 +187,14 @@
   grpc_credentials_md_store *store = grpc_credentials_md_store_create(0);
   const char *key_str = "hello";
   const char *value_str = "there blah blah blah blah blah blah blah";
-  gpr_slice key = gpr_slice_from_copied_string(key_str);
-  gpr_slice value = gpr_slice_from_copied_string(value_str);
+  grpc_slice key = grpc_slice_from_copied_string(key_str);
+  grpc_slice value = grpc_slice_from_copied_string(value_str);
   grpc_credentials_md_store_add(store, key, value);
   GPR_ASSERT(store->num_entries == 1);
-  GPR_ASSERT(gpr_slice_cmp(key, store->entries[0].key) == 0);
-  GPR_ASSERT(gpr_slice_cmp(value, store->entries[0].value) == 0);
-  gpr_slice_unref(key);
-  gpr_slice_unref(value);
+  GPR_ASSERT(grpc_slice_cmp(key, store->entries[0].key) == 0);
+  GPR_ASSERT(grpc_slice_cmp(value, store->entries[0].value) == 0);
+  grpc_slice_unref(key);
+  grpc_slice_unref(value);
   grpc_credentials_md_store_unref(store);
 }
 
@@ -204,8 +204,8 @@
   const char *value_str = "there blah blah blah blah blah blah blah";
   grpc_credentials_md_store_add_cstrings(store, key_str, value_str);
   GPR_ASSERT(store->num_entries == 1);
-  GPR_ASSERT(gpr_slice_str_cmp(store->entries[0].key, key_str) == 0);
-  GPR_ASSERT(gpr_slice_str_cmp(store->entries[0].value, value_str) == 0);
+  GPR_ASSERT(grpc_slice_str_cmp(store->entries[0].key, key_str) == 0);
+  GPR_ASSERT(grpc_slice_str_cmp(store->entries[0].value, value_str) == 0);
   grpc_credentials_md_store_unref(store);
 }
 
@@ -227,8 +227,8 @@
     grpc_credentials_md_store_add_cstrings(store, key_str, value_str);
   }
   for (i = 0; i < num_entries; i++) {
-    GPR_ASSERT(gpr_slice_str_cmp(store->entries[i].key, key_str) == 0);
-    GPR_ASSERT(gpr_slice_str_cmp(store->entries[i].value, value_str) == 0);
+    GPR_ASSERT(grpc_slice_str_cmp(store->entries[i].key, key_str) == 0);
+    GPR_ASSERT(grpc_slice_str_cmp(store->entries[i].value, value_str) == 0);
   }
   grpc_credentials_md_store_unref(store);
 }
@@ -243,9 +243,10 @@
   GPR_ASSERT(token_lifetime.tv_sec == 3599);
   GPR_ASSERT(token_lifetime.tv_nsec == 0);
   GPR_ASSERT(token_md->num_entries == 1);
-  GPR_ASSERT(gpr_slice_str_cmp(token_md->entries[0].key, "authorization") == 0);
-  GPR_ASSERT(gpr_slice_str_cmp(token_md->entries[0].value,
-                               "Bearer ya29.AHES6ZRN3-HlhAPya30GnW_bHSb_") ==
+  GPR_ASSERT(grpc_slice_str_cmp(token_md->entries[0].key, "authorization") ==
+             0);
+  GPR_ASSERT(grpc_slice_str_cmp(token_md->entries[0].value,
+                                "Bearer ya29.AHES6ZRN3-HlhAPya30GnW_bHSb_") ==
              0);
   grpc_credentials_md_store_unref(token_md);
   grpc_http_response_destroy(&response);
@@ -333,8 +334,8 @@
   for (i = 0; i < num_md; i++) {
     size_t j;
     for (j = 0; j < num_md; j++) {
-      if (0 == gpr_slice_str_cmp(md_elems[j].key, expected[i].key)) {
-        GPR_ASSERT(gpr_slice_str_cmp(md_elems[j].value, expected[i].value) ==
+      if (0 == grpc_slice_str_cmp(md_elems[j].key, expected[i].key)) {
+        GPR_ASSERT(grpc_slice_str_cmp(md_elems[j].value, expected[i].value) ==
                    0);
         break;
       }
@@ -528,9 +529,9 @@
   GPR_ASSERT(status == GRPC_CREDENTIALS_OK);
   GPR_ASSERT(error_details == NULL);
   GPR_ASSERT(num_md == 1);
-  GPR_ASSERT(gpr_slice_str_cmp(md_elems[0].key, "authorization") == 0);
-  GPR_ASSERT(gpr_slice_str_cmp(md_elems[0].value,
-                               "Bearer ya29.AHES6ZRN3-HlhAPya30GnW_bHSb_") ==
+  GPR_ASSERT(grpc_slice_str_cmp(md_elems[0].key, "authorization") == 0);
+  GPR_ASSERT(grpc_slice_str_cmp(md_elems[0].value,
+                                "Bearer ya29.AHES6ZRN3-HlhAPya30GnW_bHSb_") ==
              0);
   GPR_ASSERT(user_data != NULL);
   GPR_ASSERT(strcmp((const char *)user_data, test_user_data) == 0);
@@ -781,8 +782,8 @@
   GPR_ASSERT(status == GRPC_CREDENTIALS_OK);
   GPR_ASSERT(error_details == NULL);
   GPR_ASSERT(num_md == 1);
-  GPR_ASSERT(gpr_slice_str_cmp(md_elems[0].key, "authorization") == 0);
-  GPR_ASSERT(gpr_slice_str_cmp(md_elems[0].value, expected_md_value) == 0);
+  GPR_ASSERT(grpc_slice_str_cmp(md_elems[0].key, "authorization") == 0);
+  GPR_ASSERT(grpc_slice_str_cmp(md_elems[0].value, expected_md_value) == 0);
   GPR_ASSERT(user_data != NULL);
   GPR_ASSERT(strcmp((const char *)user_data, test_user_data) == 0);
   gpr_free(expected_md_value);
@@ -1057,8 +1058,8 @@
   GPR_ASSERT(md_elems != NULL);
   GPR_ASSERT(num_md == GPR_ARRAY_SIZE(plugin_md));
   for (i = 0; i < num_md; i++) {
-    GPR_ASSERT(gpr_slice_str_cmp(md_elems[i].key, plugin_md[i].key) == 0);
-    GPR_ASSERT(gpr_slice_str_cmp(md_elems[i].value, plugin_md[i].value) == 0);
+    GPR_ASSERT(grpc_slice_str_cmp(md_elems[i].key, plugin_md[i].key) == 0);
+    GPR_ASSERT(grpc_slice_str_cmp(md_elems[i].value, plugin_md[i].value) == 0);
   }
 }
 
diff --git a/test/core/security/fetch_oauth2.c b/test/core/security/fetch_oauth2.c
index 292f59a..e9e2112 100644
--- a/test/core/security/fetch_oauth2.c
+++ b/test/core/security/fetch_oauth2.c
@@ -36,10 +36,10 @@
 
 #include <grpc/grpc.h>
 #include <grpc/grpc_security.h>
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/cmdline.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include <grpc/support/sync.h>
 
 #include "src/core/lib/iomgr/load_file.h"
@@ -48,12 +48,12 @@
 
 static grpc_call_credentials *create_refresh_token_creds(
     const char *json_refresh_token_file_path) {
-  gpr_slice refresh_token;
+  grpc_slice refresh_token;
   GPR_ASSERT(GRPC_LOG_IF_ERROR(
       "load_file",
       grpc_load_file(json_refresh_token_file_path, 1, &refresh_token)));
   return grpc_google_refresh_token_credentials_create(
-      (const char *)GPR_SLICE_START_PTR(refresh_token), NULL);
+      (const char *)GRPC_SLICE_START_PTR(refresh_token), NULL);
 }
 
 int main(int argc, char **argv) {
diff --git a/test/core/security/json_token_test.c b/test/core/security/json_token_test.c
index 405fe56..2016558 100644
--- a/test/core/security/json_token_test.c
+++ b/test/core/security/json_token_test.c
@@ -37,9 +37,9 @@
 #include <string.h>
 
 #include <grpc/grpc_security.h>
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 
 #include "src/core/lib/json/json.h"
 #include "src/core/lib/security/credentials/oauth2/oauth2_credentials.h"
@@ -223,20 +223,20 @@
   char *b64;
   char *decoded;
   grpc_json *json;
-  gpr_slice slice;
+  grpc_slice slice;
   b64 = gpr_malloc(len + 1);
   strncpy(b64, str, len);
   b64[len] = '\0';
   slice = grpc_base64_decode(b64, 1);
-  GPR_ASSERT(!GPR_SLICE_IS_EMPTY(slice));
-  decoded = gpr_malloc(GPR_SLICE_LENGTH(slice) + 1);
-  strncpy(decoded, (const char *)GPR_SLICE_START_PTR(slice),
-          GPR_SLICE_LENGTH(slice));
-  decoded[GPR_SLICE_LENGTH(slice)] = '\0';
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(slice));
+  decoded = gpr_malloc(GRPC_SLICE_LENGTH(slice) + 1);
+  strncpy(decoded, (const char *)GRPC_SLICE_START_PTR(slice),
+          GRPC_SLICE_LENGTH(slice));
+  decoded[GRPC_SLICE_LENGTH(slice)] = '\0';
   json = grpc_json_parse_string(decoded);
   gpr_free(b64);
   *scratchpad = decoded;
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   return json;
 }
 
@@ -341,9 +341,9 @@
   EVP_MD_CTX *md_ctx = EVP_MD_CTX_create();
   EVP_PKEY *key = EVP_PKEY_new();
 
-  gpr_slice sig = grpc_base64_decode(b64_signature, 1);
-  GPR_ASSERT(!GPR_SLICE_IS_EMPTY(sig));
-  GPR_ASSERT(GPR_SLICE_LENGTH(sig) == 128);
+  grpc_slice sig = grpc_base64_decode(b64_signature, 1);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(sig));
+  GPR_ASSERT(GRPC_SLICE_LENGTH(sig) == 128);
 
   GPR_ASSERT(md_ctx != NULL);
   GPR_ASSERT(key != NULL);
@@ -352,10 +352,10 @@
   GPR_ASSERT(EVP_DigestVerifyInit(md_ctx, NULL, EVP_sha256(), NULL, key) == 1);
   GPR_ASSERT(EVP_DigestVerifyUpdate(md_ctx, signed_data, signed_data_size) ==
              1);
-  GPR_ASSERT(EVP_DigestVerifyFinal(md_ctx, GPR_SLICE_START_PTR(sig),
-                                   GPR_SLICE_LENGTH(sig)) == 1);
+  GPR_ASSERT(EVP_DigestVerifyFinal(md_ctx, GRPC_SLICE_START_PTR(sig),
+                                   GRPC_SLICE_LENGTH(sig)) == 1);
 
-  gpr_slice_unref(sig);
+  grpc_slice_unref(sig);
   if (key != NULL) EVP_PKEY_free(key);
   if (md_ctx != NULL) EVP_MD_CTX_destroy(md_ctx);
 }
diff --git a/test/core/security/jwt_verifier_test.c b/test/core/security/jwt_verifier_test.c
index 36b331a..f8afba8 100644
--- a/test/core/security/jwt_verifier_test.c
+++ b/test/core/security/jwt_verifier_test.c
@@ -37,9 +37,9 @@
 
 #include <grpc/grpc.h>
 
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include <grpc/support/string_util.h>
 
 #include "src/core/lib/http/httpcli.h"
@@ -181,9 +181,9 @@
 
 static void test_claims_success(void) {
   grpc_jwt_claims *claims;
-  gpr_slice s = gpr_slice_from_copied_string(claims_without_time_constraint);
+  grpc_slice s = grpc_slice_from_copied_string(claims_without_time_constraint);
   grpc_json *json = grpc_json_parse_string_with_len(
-      (char *)GPR_SLICE_START_PTR(s), GPR_SLICE_LENGTH(s));
+      (char *)GRPC_SLICE_START_PTR(s), GRPC_SLICE_LENGTH(s));
   GPR_ASSERT(json != NULL);
   claims = grpc_jwt_claims_from_json(json, s);
   GPR_ASSERT(claims != NULL);
@@ -199,9 +199,9 @@
 
 static void test_expired_claims_failure(void) {
   grpc_jwt_claims *claims;
-  gpr_slice s = gpr_slice_from_copied_string(expired_claims);
+  grpc_slice s = grpc_slice_from_copied_string(expired_claims);
   grpc_json *json = grpc_json_parse_string_with_len(
-      (char *)GPR_SLICE_START_PTR(s), GPR_SLICE_LENGTH(s));
+      (char *)GRPC_SLICE_START_PTR(s), GRPC_SLICE_LENGTH(s));
   gpr_timespec exp_iat = {100, 0, GPR_CLOCK_REALTIME};
   gpr_timespec exp_exp = {120, 0, GPR_CLOCK_REALTIME};
   gpr_timespec exp_nbf = {60, 0, GPR_CLOCK_REALTIME};
@@ -223,17 +223,17 @@
 }
 
 static void test_invalid_claims_failure(void) {
-  gpr_slice s = gpr_slice_from_copied_string(invalid_claims);
+  grpc_slice s = grpc_slice_from_copied_string(invalid_claims);
   grpc_json *json = grpc_json_parse_string_with_len(
-      (char *)GPR_SLICE_START_PTR(s), GPR_SLICE_LENGTH(s));
+      (char *)GRPC_SLICE_START_PTR(s), GRPC_SLICE_LENGTH(s));
   GPR_ASSERT(grpc_jwt_claims_from_json(json, s) == NULL);
 }
 
 static void test_bad_audience_claims_failure(void) {
   grpc_jwt_claims *claims;
-  gpr_slice s = gpr_slice_from_copied_string(claims_without_time_constraint);
+  grpc_slice s = grpc_slice_from_copied_string(claims_without_time_constraint);
   grpc_json *json = grpc_json_parse_string_with_len(
-      (char *)GPR_SLICE_START_PTR(s), GPR_SLICE_LENGTH(s));
+      (char *)GRPC_SLICE_START_PTR(s), GRPC_SLICE_LENGTH(s));
   GPR_ASSERT(json != NULL);
   claims = grpc_jwt_claims_from_json(json, s);
   GPR_ASSERT(claims != NULL);
@@ -478,20 +478,20 @@
 }
 
 static void corrupt_jwt_sig(char *jwt) {
-  gpr_slice sig;
+  grpc_slice sig;
   char *bad_b64_sig;
   uint8_t *sig_bytes;
   char *last_dot = strrchr(jwt, '.');
   GPR_ASSERT(last_dot != NULL);
   sig = grpc_base64_decode(last_dot + 1, 1);
-  GPR_ASSERT(!GPR_SLICE_IS_EMPTY(sig));
-  sig_bytes = GPR_SLICE_START_PTR(sig);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(sig));
+  sig_bytes = GRPC_SLICE_START_PTR(sig);
   (*sig_bytes)++; /* Corrupt first byte. */
-  bad_b64_sig =
-      grpc_base64_encode(GPR_SLICE_START_PTR(sig), GPR_SLICE_LENGTH(sig), 1, 0);
+  bad_b64_sig = grpc_base64_encode(GRPC_SLICE_START_PTR(sig),
+                                   GRPC_SLICE_LENGTH(sig), 1, 0);
   memcpy(last_dot + 1, bad_b64_sig, strlen(bad_b64_sig));
   gpr_free(bad_b64_sig);
-  gpr_slice_unref(sig);
+  grpc_slice_unref(sig);
 }
 
 static void on_verification_bad_signature(void *user_data,
diff --git a/test/core/security/oauth2_utils.c b/test/core/security/oauth2_utils.c
index 9b97c38..44a2092 100644
--- a/test/core/security/oauth2_utils.c
+++ b/test/core/security/oauth2_utils.c
@@ -37,9 +37,9 @@
 
 #include <grpc/grpc.h>
 #include <grpc/grpc_security.h>
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include <grpc/support/sync.h>
 
 #include "src/core/lib/security/credentials/credentials.h"
@@ -57,16 +57,16 @@
                                const char *error_details) {
   oauth2_request *request = user_data;
   char *token = NULL;
-  gpr_slice token_slice;
+  grpc_slice token_slice;
   if (status == GRPC_CREDENTIALS_ERROR) {
     gpr_log(GPR_ERROR, "Fetching token failed.");
   } else {
     GPR_ASSERT(num_md == 1);
     token_slice = md_elems[0].value;
-    token = gpr_malloc(GPR_SLICE_LENGTH(token_slice) + 1);
-    memcpy(token, GPR_SLICE_START_PTR(token_slice),
-           GPR_SLICE_LENGTH(token_slice));
-    token[GPR_SLICE_LENGTH(token_slice)] = '\0';
+    token = gpr_malloc(GRPC_SLICE_LENGTH(token_slice) + 1);
+    memcpy(token, GRPC_SLICE_START_PTR(token_slice),
+           GRPC_SLICE_LENGTH(token_slice));
+    token[GRPC_SLICE_LENGTH(token_slice)] = '\0';
   }
   gpr_mu_lock(request->mu);
   request->is_done = 1;
diff --git a/test/core/security/print_google_default_creds_token.c b/test/core/security/print_google_default_creds_token.c
index a391c08..2b74690 100644
--- a/test/core/security/print_google_default_creds_token.c
+++ b/test/core/security/print_google_default_creds_token.c
@@ -36,14 +36,15 @@
 
 #include <grpc/grpc.h>
 #include <grpc/grpc_security.h>
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/cmdline.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include <grpc/support/sync.h>
 
 #include "src/core/lib/security/credentials/composite/composite_credentials.h"
 #include "src/core/lib/security/credentials/credentials.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 
 typedef struct {
@@ -62,7 +63,7 @@
   } else {
     char *token;
     GPR_ASSERT(num_md == 1);
-    token = gpr_dump_slice(md_elems[0].value, GPR_DUMP_ASCII);
+    token = grpc_dump_slice(md_elems[0].value, GPR_DUMP_ASCII);
     printf("\nGot token: %s\n\n", token);
     gpr_free(token);
   }
diff --git a/test/core/security/secure_endpoint_test.c b/test/core/security/secure_endpoint_test.c
index 2262fde..b5d9500 100644
--- a/test/core/security/secure_endpoint_test.c
+++ b/test/core/security/secure_endpoint_test.c
@@ -49,7 +49,7 @@
 static grpc_pollset *g_pollset;
 
 static grpc_endpoint_test_fixture secure_endpoint_create_fixture_tcp_socketpair(
-    size_t slice_size, gpr_slice *leftover_slices, size_t leftover_nslices) {
+    size_t slice_size, grpc_slice *leftover_slices, size_t leftover_nslices) {
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
   tsi_frame_protector *fake_read_protector = tsi_create_fake_protector(NULL);
   tsi_frame_protector *fake_write_protector = tsi_create_fake_protector(NULL);
@@ -74,11 +74,11 @@
     size_t buffer_size = total_buffer_size;
     uint8_t *encrypted_buffer = gpr_malloc(buffer_size);
     uint8_t *cur = encrypted_buffer;
-    gpr_slice encrypted_leftover;
+    grpc_slice encrypted_leftover;
     for (i = 0; i < leftover_nslices; i++) {
-      gpr_slice plain = leftover_slices[i];
-      uint8_t *message_bytes = GPR_SLICE_START_PTR(plain);
-      size_t message_size = GPR_SLICE_LENGTH(plain);
+      grpc_slice plain = leftover_slices[i];
+      uint8_t *message_bytes = GRPC_SLICE_START_PTR(plain);
+      size_t message_size = GRPC_SLICE_LENGTH(plain);
       while (message_size > 0) {
         size_t protected_buffer_size_to_send = buffer_size;
         size_t processed_message_size = message_size;
@@ -92,7 +92,7 @@
         GPR_ASSERT(buffer_size >= protected_buffer_size_to_send);
         buffer_size -= protected_buffer_size_to_send;
       }
-      gpr_slice_unref(plain);
+      grpc_slice_unref(plain);
     }
     do {
       size_t protected_buffer_size_to_send = buffer_size;
@@ -104,11 +104,11 @@
       GPR_ASSERT(buffer_size >= protected_buffer_size_to_send);
       buffer_size -= protected_buffer_size_to_send;
     } while (still_pending_size > 0);
-    encrypted_leftover = gpr_slice_from_copied_buffer(
+    encrypted_leftover = grpc_slice_from_copied_buffer(
         (const char *)encrypted_buffer, total_buffer_size - buffer_size);
     f.client_ep = grpc_secure_endpoint_create(fake_read_protector, tcp.client,
                                               &encrypted_leftover, 1);
-    gpr_slice_unref(encrypted_leftover);
+    grpc_slice_unref(encrypted_leftover);
     gpr_free(encrypted_buffer);
   }
 
@@ -125,8 +125,8 @@
 
 static grpc_endpoint_test_fixture
 secure_endpoint_create_fixture_tcp_socketpair_leftover(size_t slice_size) {
-  gpr_slice s =
-      gpr_slice_from_copied_string("hello world 12345678900987654321");
+  grpc_slice s =
+      grpc_slice_from_copied_string("hello world 12345678900987654321");
   grpc_endpoint_test_fixture f;
 
   f = secure_endpoint_create_fixture_tcp_socketpair(slice_size, &s, 1);
@@ -149,29 +149,29 @@
 
 static void test_leftover(grpc_endpoint_test_config config, size_t slice_size) {
   grpc_endpoint_test_fixture f = config.create_fixture(slice_size);
-  gpr_slice_buffer incoming;
-  gpr_slice s =
-      gpr_slice_from_copied_string("hello world 12345678900987654321");
+  grpc_slice_buffer incoming;
+  grpc_slice s =
+      grpc_slice_from_copied_string("hello world 12345678900987654321");
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
   int n = 0;
   grpc_closure done_closure;
   gpr_log(GPR_INFO, "Start test left over");
 
-  gpr_slice_buffer_init(&incoming);
+  grpc_slice_buffer_init(&incoming);
   grpc_closure_init(&done_closure, inc_call_ctr, &n);
   grpc_endpoint_read(&exec_ctx, f.client_ep, &incoming, &done_closure);
   grpc_exec_ctx_finish(&exec_ctx);
   GPR_ASSERT(n == 1);
   GPR_ASSERT(incoming.count == 1);
-  GPR_ASSERT(0 == gpr_slice_cmp(s, incoming.slices[0]));
+  GPR_ASSERT(0 == grpc_slice_cmp(s, incoming.slices[0]));
 
   grpc_endpoint_shutdown(&exec_ctx, f.client_ep);
   grpc_endpoint_shutdown(&exec_ctx, f.server_ep);
   grpc_endpoint_destroy(&exec_ctx, f.client_ep);
   grpc_endpoint_destroy(&exec_ctx, f.server_ep);
   grpc_exec_ctx_finish(&exec_ctx);
-  gpr_slice_unref(s);
-  gpr_slice_buffer_destroy(&incoming);
+  grpc_slice_unref(s);
+  grpc_slice_buffer_destroy(&incoming);
 
   clean_up();
 }
diff --git a/test/core/security/security_connector_test.c b/test/core/security/security_connector_test.c
index 6106bec..8872cbe 100644
--- a/test/core/security/security_connector_test.c
+++ b/test/core/security/security_connector_test.c
@@ -42,6 +42,7 @@
 
 #include "src/core/lib/security/context/security_context.h"
 #include "src/core/lib/security/transport/security_connector.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/env.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/support/tmpfile.h"
@@ -368,9 +369,9 @@
      value. */
   gpr_setenv(GRPC_DEFAULT_SSL_ROOTS_FILE_PATH_ENV_VAR, "");
   grpc_set_ssl_roots_override_callback(override_roots_success);
-  gpr_slice roots = grpc_get_default_ssl_roots_for_testing();
-  char *roots_contents = gpr_dump_slice(roots, GPR_DUMP_ASCII);
-  gpr_slice_unref(roots);
+  grpc_slice roots = grpc_get_default_ssl_roots_for_testing();
+  char *roots_contents = grpc_dump_slice(roots, GPR_DUMP_ASCII);
+  grpc_slice_unref(roots);
   GPR_ASSERT(strcmp(roots_contents, roots_for_override_api) == 0);
   gpr_free(roots_contents);
 
@@ -378,8 +379,8 @@
      instead. */
   gpr_setenv(GRPC_DEFAULT_SSL_ROOTS_FILE_PATH_ENV_VAR, roots_env_var_file_path);
   roots = grpc_get_default_ssl_roots_for_testing();
-  roots_contents = gpr_dump_slice(roots, GPR_DUMP_ASCII);
-  gpr_slice_unref(roots);
+  roots_contents = grpc_dump_slice(roots, GPR_DUMP_ASCII);
+  grpc_slice_unref(roots);
   GPR_ASSERT(strcmp(roots_contents, roots_for_env_var) == 0);
   gpr_free(roots_contents);
 
@@ -387,8 +388,8 @@
      the api. */
   gpr_setenv(GRPC_DEFAULT_SSL_ROOTS_FILE_PATH_ENV_VAR, "");
   roots = grpc_get_default_ssl_roots_for_testing();
-  roots_contents = gpr_dump_slice(roots, GPR_DUMP_ASCII);
-  gpr_slice_unref(roots);
+  roots_contents = grpc_dump_slice(roots, GPR_DUMP_ASCII);
+  grpc_slice_unref(roots);
   GPR_ASSERT(strcmp(roots_contents, roots_for_override_api) == 0);
   gpr_free(roots_contents);
 
@@ -396,7 +397,7 @@
      an empty slice. */
   grpc_set_ssl_roots_override_callback(override_roots_permanent_failure);
   roots = grpc_get_default_ssl_roots_for_testing();
-  GPR_ASSERT(GPR_SLICE_IS_EMPTY(roots));
+  GPR_ASSERT(GRPC_SLICE_IS_EMPTY(roots));
 
   /* Cleanup. */
   remove(roots_env_var_file_path);
diff --git a/test/core/security/verify_jwt.c b/test/core/security/verify_jwt.c
index 728d2d6..043d29e 100644
--- a/test/core/security/verify_jwt.c
+++ b/test/core/security/verify_jwt.c
@@ -36,10 +36,10 @@
 
 #include <grpc/grpc.h>
 #include <grpc/grpc_security.h>
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/cmdline.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include <grpc/support/sync.h>
 
 #include "src/core/lib/security/credentials/jwt/jwt_verifier.h"
diff --git a/test/core/support/percent_decode_corpus/04cb8ccc553f9b2f5e52c421aff6d1c954d3dae6 b/test/core/slice/percent_decode_corpus/04cb8ccc553f9b2f5e52c421aff6d1c954d3dae6
similarity index 100%
rename from test/core/support/percent_decode_corpus/04cb8ccc553f9b2f5e52c421aff6d1c954d3dae6
rename to test/core/slice/percent_decode_corpus/04cb8ccc553f9b2f5e52c421aff6d1c954d3dae6
diff --git a/test/core/support/percent_decode_corpus/0dd8f3a63745b3a2d39791559b5c1b311447b537 b/test/core/slice/percent_decode_corpus/0dd8f3a63745b3a2d39791559b5c1b311447b537
similarity index 100%
rename from test/core/support/percent_decode_corpus/0dd8f3a63745b3a2d39791559b5c1b311447b537
rename to test/core/slice/percent_decode_corpus/0dd8f3a63745b3a2d39791559b5c1b311447b537
diff --git a/test/core/support/percent_decode_corpus/17eeaca784409adbe43365c32ac87915d736bba3 b/test/core/slice/percent_decode_corpus/17eeaca784409adbe43365c32ac87915d736bba3
similarity index 100%
rename from test/core/support/percent_decode_corpus/17eeaca784409adbe43365c32ac87915d736bba3
rename to test/core/slice/percent_decode_corpus/17eeaca784409adbe43365c32ac87915d736bba3
diff --git a/test/core/support/percent_decode_corpus/2040c1ff65f52a7ae668c2c8f324de5dacc9d695 b/test/core/slice/percent_decode_corpus/2040c1ff65f52a7ae668c2c8f324de5dacc9d695
similarity index 100%
rename from test/core/support/percent_decode_corpus/2040c1ff65f52a7ae668c2c8f324de5dacc9d695
rename to test/core/slice/percent_decode_corpus/2040c1ff65f52a7ae668c2c8f324de5dacc9d695
diff --git a/test/core/support/percent_decode_corpus/26b0d1da23027ae54db96e125e4a9e98842d77fb b/test/core/slice/percent_decode_corpus/26b0d1da23027ae54db96e125e4a9e98842d77fb
similarity index 100%
rename from test/core/support/percent_decode_corpus/26b0d1da23027ae54db96e125e4a9e98842d77fb
rename to test/core/slice/percent_decode_corpus/26b0d1da23027ae54db96e125e4a9e98842d77fb
diff --git a/test/core/support/percent_decode_corpus/2a089c0db45acdb4c6ed8e7ff81ca7235792c0b9 b/test/core/slice/percent_decode_corpus/2a089c0db45acdb4c6ed8e7ff81ca7235792c0b9
similarity index 100%
rename from test/core/support/percent_decode_corpus/2a089c0db45acdb4c6ed8e7ff81ca7235792c0b9
rename to test/core/slice/percent_decode_corpus/2a089c0db45acdb4c6ed8e7ff81ca7235792c0b9
diff --git a/test/core/support/percent_decode_corpus/35b7b3bc3a740d5c3abca0d75b53f0e1e1ee998a b/test/core/slice/percent_decode_corpus/35b7b3bc3a740d5c3abca0d75b53f0e1e1ee998a
similarity index 100%
rename from test/core/support/percent_decode_corpus/35b7b3bc3a740d5c3abca0d75b53f0e1e1ee998a
rename to test/core/slice/percent_decode_corpus/35b7b3bc3a740d5c3abca0d75b53f0e1e1ee998a
diff --git a/test/core/support/percent_decode_corpus/36367ba1adba47a1cbc3a88707fde8cc7abdc248 b/test/core/slice/percent_decode_corpus/36367ba1adba47a1cbc3a88707fde8cc7abdc248
similarity index 100%
rename from test/core/support/percent_decode_corpus/36367ba1adba47a1cbc3a88707fde8cc7abdc248
rename to test/core/slice/percent_decode_corpus/36367ba1adba47a1cbc3a88707fde8cc7abdc248
diff --git a/test/core/support/percent_decode_corpus/39c2ba51548a0beaf0d6d1164531f1447dc311b5 b/test/core/slice/percent_decode_corpus/39c2ba51548a0beaf0d6d1164531f1447dc311b5
similarity index 100%
rename from test/core/support/percent_decode_corpus/39c2ba51548a0beaf0d6d1164531f1447dc311b5
rename to test/core/slice/percent_decode_corpus/39c2ba51548a0beaf0d6d1164531f1447dc311b5
diff --git a/test/core/support/percent_decode_corpus/56d08fea787c041395c6697ce26cfbc0decbe688 b/test/core/slice/percent_decode_corpus/56d08fea787c041395c6697ce26cfbc0decbe688
similarity index 100%
rename from test/core/support/percent_decode_corpus/56d08fea787c041395c6697ce26cfbc0decbe688
rename to test/core/slice/percent_decode_corpus/56d08fea787c041395c6697ce26cfbc0decbe688
diff --git a/test/core/support/percent_decode_corpus/678d981fdabb9f0d6640235cf1719dd1e1e66ae9 b/test/core/slice/percent_decode_corpus/678d981fdabb9f0d6640235cf1719dd1e1e66ae9
similarity index 100%
rename from test/core/support/percent_decode_corpus/678d981fdabb9f0d6640235cf1719dd1e1e66ae9
rename to test/core/slice/percent_decode_corpus/678d981fdabb9f0d6640235cf1719dd1e1e66ae9
diff --git a/test/core/support/percent_decode_corpus/68751961609ec010565de0aa87521dcbf0722c5d b/test/core/slice/percent_decode_corpus/68751961609ec010565de0aa87521dcbf0722c5d
similarity index 100%
rename from test/core/support/percent_decode_corpus/68751961609ec010565de0aa87521dcbf0722c5d
rename to test/core/slice/percent_decode_corpus/68751961609ec010565de0aa87521dcbf0722c5d
diff --git a/test/core/support/percent_decode_corpus/7875c06c6f03c9aa2f8e9c59f8d8957c8a32e759 b/test/core/slice/percent_decode_corpus/7875c06c6f03c9aa2f8e9c59f8d8957c8a32e759
similarity index 100%
rename from test/core/support/percent_decode_corpus/7875c06c6f03c9aa2f8e9c59f8d8957c8a32e759
rename to test/core/slice/percent_decode_corpus/7875c06c6f03c9aa2f8e9c59f8d8957c8a32e759
diff --git a/test/core/support/percent_decode_corpus/7b302090e090a5829b6d1dd7be30bd4e36a7e60f b/test/core/slice/percent_decode_corpus/7b302090e090a5829b6d1dd7be30bd4e36a7e60f
similarity index 100%
rename from test/core/support/percent_decode_corpus/7b302090e090a5829b6d1dd7be30bd4e36a7e60f
rename to test/core/slice/percent_decode_corpus/7b302090e090a5829b6d1dd7be30bd4e36a7e60f
diff --git a/test/core/support/percent_decode_corpus/875e1022169c9e4c541a9ad894e69e989df22ba1 b/test/core/slice/percent_decode_corpus/875e1022169c9e4c541a9ad894e69e989df22ba1
similarity index 100%
rename from test/core/support/percent_decode_corpus/875e1022169c9e4c541a9ad894e69e989df22ba1
rename to test/core/slice/percent_decode_corpus/875e1022169c9e4c541a9ad894e69e989df22ba1
diff --git a/test/core/support/percent_decode_corpus/8c1051ce066f5a26de9a9d133180621d0da957b4 b/test/core/slice/percent_decode_corpus/8c1051ce066f5a26de9a9d133180621d0da957b4
similarity index 100%
rename from test/core/support/percent_decode_corpus/8c1051ce066f5a26de9a9d133180621d0da957b4
rename to test/core/slice/percent_decode_corpus/8c1051ce066f5a26de9a9d133180621d0da957b4
diff --git a/test/core/support/percent_decode_corpus/8e084e628ab83a18ac7ca7cb3506525263655c63 b/test/core/slice/percent_decode_corpus/8e084e628ab83a18ac7ca7cb3506525263655c63
similarity index 100%
rename from test/core/support/percent_decode_corpus/8e084e628ab83a18ac7ca7cb3506525263655c63
rename to test/core/slice/percent_decode_corpus/8e084e628ab83a18ac7ca7cb3506525263655c63
diff --git a/test/core/support/percent_decode_corpus/9d316c4675f40ddccaf8f1cc7aea94170b1e4223 b/test/core/slice/percent_decode_corpus/9d316c4675f40ddccaf8f1cc7aea94170b1e4223
similarity index 100%
rename from test/core/support/percent_decode_corpus/9d316c4675f40ddccaf8f1cc7aea94170b1e4223
rename to test/core/slice/percent_decode_corpus/9d316c4675f40ddccaf8f1cc7aea94170b1e4223
diff --git a/test/core/support/percent_decode_corpus/ad1c7c11d18a7d116e2c2ef4d4c5afb1270836ae b/test/core/slice/percent_decode_corpus/ad1c7c11d18a7d116e2c2ef4d4c5afb1270836ae
similarity index 100%
rename from test/core/support/percent_decode_corpus/ad1c7c11d18a7d116e2c2ef4d4c5afb1270836ae
rename to test/core/slice/percent_decode_corpus/ad1c7c11d18a7d116e2c2ef4d4c5afb1270836ae
diff --git a/test/core/support/percent_decode_corpus/b471f94aa4facf502e622e4a248f1ba4063ae681 b/test/core/slice/percent_decode_corpus/b471f94aa4facf502e622e4a248f1ba4063ae681
similarity index 100%
rename from test/core/support/percent_decode_corpus/b471f94aa4facf502e622e4a248f1ba4063ae681
rename to test/core/slice/percent_decode_corpus/b471f94aa4facf502e622e4a248f1ba4063ae681
diff --git a/test/core/support/percent_decode_corpus/bf52ece030f16136d46e0dc97f58d60a0d8a1f0b b/test/core/slice/percent_decode_corpus/bf52ece030f16136d46e0dc97f58d60a0d8a1f0b
similarity index 100%
rename from test/core/support/percent_decode_corpus/bf52ece030f16136d46e0dc97f58d60a0d8a1f0b
rename to test/core/slice/percent_decode_corpus/bf52ece030f16136d46e0dc97f58d60a0d8a1f0b
diff --git a/test/core/support/percent_decode_corpus/d5b2a7177339ba2b7ce2f60e5f4459bef1e72758 b/test/core/slice/percent_decode_corpus/d5b2a7177339ba2b7ce2f60e5f4459bef1e72758
similarity index 100%
rename from test/core/support/percent_decode_corpus/d5b2a7177339ba2b7ce2f60e5f4459bef1e72758
rename to test/core/slice/percent_decode_corpus/d5b2a7177339ba2b7ce2f60e5f4459bef1e72758
diff --git a/test/core/support/percent_decode_corpus/de867b64c54a7ed773dc611fc5cd2f17c5433113 b/test/core/slice/percent_decode_corpus/de867b64c54a7ed773dc611fc5cd2f17c5433113
similarity index 100%
rename from test/core/support/percent_decode_corpus/de867b64c54a7ed773dc611fc5cd2f17c5433113
rename to test/core/slice/percent_decode_corpus/de867b64c54a7ed773dc611fc5cd2f17c5433113
diff --git a/test/core/support/percent_decode_corpus/e3948dbe004950591630dd5c52f4e0fcbd5e388a b/test/core/slice/percent_decode_corpus/e3948dbe004950591630dd5c52f4e0fcbd5e388a
similarity index 100%
rename from test/core/support/percent_decode_corpus/e3948dbe004950591630dd5c52f4e0fcbd5e388a
rename to test/core/slice/percent_decode_corpus/e3948dbe004950591630dd5c52f4e0fcbd5e388a
diff --git a/test/core/support/percent_decode_corpus/e7064f0b80f61dbc65915311032d27baa569ae2a b/test/core/slice/percent_decode_corpus/e7064f0b80f61dbc65915311032d27baa569ae2a
similarity index 100%
rename from test/core/support/percent_decode_corpus/e7064f0b80f61dbc65915311032d27baa569ae2a
rename to test/core/slice/percent_decode_corpus/e7064f0b80f61dbc65915311032d27baa569ae2a
diff --git a/test/core/support/percent_decode_corpus/xyz b/test/core/slice/percent_decode_corpus/xyz
similarity index 100%
rename from test/core/support/percent_decode_corpus/xyz
rename to test/core/slice/percent_decode_corpus/xyz
diff --git a/test/core/support/percent_decode_fuzzer.c b/test/core/slice/percent_decode_fuzzer.c
similarity index 79%
rename from test/core/support/percent_decode_fuzzer.c
rename to test/core/slice/percent_decode_fuzzer.c
index 3e02980..5e90446 100644
--- a/test/core/support/percent_decode_fuzzer.c
+++ b/test/core/slice/percent_decode_fuzzer.c
@@ -38,7 +38,7 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/lib/support/percent_encoding.h"
+#include "src/core/lib/slice/percent_encoding.h"
 #include "test/core/util/memory_counters.h"
 
 bool squelch = true;
@@ -47,18 +47,18 @@
 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
   struct grpc_memory_counters counters;
   grpc_memory_counters_init();
-  gpr_slice input = gpr_slice_from_copied_buffer((const char *)data, size);
-  gpr_slice output;
-  if (gpr_strict_percent_decode_slice(
-          input, gpr_url_percent_encoding_unreserved_bytes, &output)) {
-    gpr_slice_unref(output);
+  grpc_slice input = grpc_slice_from_copied_buffer((const char *)data, size);
+  grpc_slice output;
+  if (grpc_strict_percent_decode_slice(
+          input, grpc_url_percent_encoding_unreserved_bytes, &output)) {
+    grpc_slice_unref(output);
   }
-  if (gpr_strict_percent_decode_slice(
-          input, gpr_compatible_percent_encoding_unreserved_bytes, &output)) {
-    gpr_slice_unref(output);
+  if (grpc_strict_percent_decode_slice(
+          input, grpc_compatible_percent_encoding_unreserved_bytes, &output)) {
+    grpc_slice_unref(output);
   }
-  gpr_slice_unref(gpr_permissive_percent_decode_slice(input));
-  gpr_slice_unref(input);
+  grpc_slice_unref(grpc_permissive_percent_decode_slice(input));
+  grpc_slice_unref(input);
   counters = grpc_memory_counters_snapshot();
   grpc_memory_counters_destroy();
   GPR_ASSERT(counters.total_size_relative == 0);
diff --git a/test/core/support/percent_encode_corpus/0d3ee7fa54e6c66103965fd4409b044ba7db6c3f b/test/core/slice/percent_encode_corpus/0d3ee7fa54e6c66103965fd4409b044ba7db6c3f
similarity index 100%
rename from test/core/support/percent_encode_corpus/0d3ee7fa54e6c66103965fd4409b044ba7db6c3f
rename to test/core/slice/percent_encode_corpus/0d3ee7fa54e6c66103965fd4409b044ba7db6c3f
diff --git a/test/core/support/percent_encode_corpus/2e7ccf75e27b9501e3b28cf1c50ed0c45ab7c226 b/test/core/slice/percent_encode_corpus/2e7ccf75e27b9501e3b28cf1c50ed0c45ab7c226
similarity index 100%
rename from test/core/support/percent_encode_corpus/2e7ccf75e27b9501e3b28cf1c50ed0c45ab7c226
rename to test/core/slice/percent_encode_corpus/2e7ccf75e27b9501e3b28cf1c50ed0c45ab7c226
diff --git a/test/core/support/percent_encode_corpus/55bb859f3942c462b03b7cbcf22ab4a0ac9705cf b/test/core/slice/percent_encode_corpus/55bb859f3942c462b03b7cbcf22ab4a0ac9705cf
similarity index 100%
rename from test/core/support/percent_encode_corpus/55bb859f3942c462b03b7cbcf22ab4a0ac9705cf
rename to test/core/slice/percent_encode_corpus/55bb859f3942c462b03b7cbcf22ab4a0ac9705cf
diff --git a/test/core/support/percent_encode_corpus/56070cecd54c845b6d4334953b17b712eb000d93 b/test/core/slice/percent_encode_corpus/56070cecd54c845b6d4334953b17b712eb000d93
similarity index 100%
rename from test/core/support/percent_encode_corpus/56070cecd54c845b6d4334953b17b712eb000d93
rename to test/core/slice/percent_encode_corpus/56070cecd54c845b6d4334953b17b712eb000d93
diff --git a/test/core/support/percent_encode_corpus/61f50e891bf7ff5eb7a7af206f1e25d77f8756e7 b/test/core/slice/percent_encode_corpus/61f50e891bf7ff5eb7a7af206f1e25d77f8756e7
similarity index 100%
rename from test/core/support/percent_encode_corpus/61f50e891bf7ff5eb7a7af206f1e25d77f8756e7
rename to test/core/slice/percent_encode_corpus/61f50e891bf7ff5eb7a7af206f1e25d77f8756e7
diff --git a/test/core/support/percent_encode_corpus/6e0c60cefc704c7940e475a87dd9ae423061cb5a b/test/core/slice/percent_encode_corpus/6e0c60cefc704c7940e475a87dd9ae423061cb5a
similarity index 100%
rename from test/core/support/percent_encode_corpus/6e0c60cefc704c7940e475a87dd9ae423061cb5a
rename to test/core/slice/percent_encode_corpus/6e0c60cefc704c7940e475a87dd9ae423061cb5a
diff --git a/test/core/support/percent_encode_corpus/7271ebcc6d22a0f186f7bc3c1973a7ed1bec8d8e b/test/core/slice/percent_encode_corpus/7271ebcc6d22a0f186f7bc3c1973a7ed1bec8d8e
similarity index 100%
rename from test/core/support/percent_encode_corpus/7271ebcc6d22a0f186f7bc3c1973a7ed1bec8d8e
rename to test/core/slice/percent_encode_corpus/7271ebcc6d22a0f186f7bc3c1973a7ed1bec8d8e
diff --git a/test/core/support/percent_encode_corpus/74c83ece3e2920a67593a9be9c82468f16cbb969 b/test/core/slice/percent_encode_corpus/74c83ece3e2920a67593a9be9c82468f16cbb969
similarity index 100%
rename from test/core/support/percent_encode_corpus/74c83ece3e2920a67593a9be9c82468f16cbb969
rename to test/core/slice/percent_encode_corpus/74c83ece3e2920a67593a9be9c82468f16cbb969
diff --git a/test/core/support/percent_encode_corpus/98e004fd2a9f141a7a019720820080e12d637c06 b/test/core/slice/percent_encode_corpus/98e004fd2a9f141a7a019720820080e12d637c06
similarity index 100%
rename from test/core/support/percent_encode_corpus/98e004fd2a9f141a7a019720820080e12d637c06
rename to test/core/slice/percent_encode_corpus/98e004fd2a9f141a7a019720820080e12d637c06
diff --git a/test/core/support/percent_encode_corpus/ba2c1e98227aa21ea3bb2ca4d0e504119717da8b b/test/core/slice/percent_encode_corpus/ba2c1e98227aa21ea3bb2ca4d0e504119717da8b
similarity index 100%
rename from test/core/support/percent_encode_corpus/ba2c1e98227aa21ea3bb2ca4d0e504119717da8b
rename to test/core/slice/percent_encode_corpus/ba2c1e98227aa21ea3bb2ca4d0e504119717da8b
diff --git a/test/core/support/percent_encode_corpus/c16b9fd45370d4afb5d3ebd307a6e263c25ffd45 b/test/core/slice/percent_encode_corpus/c16b9fd45370d4afb5d3ebd307a6e263c25ffd45
similarity index 100%
rename from test/core/support/percent_encode_corpus/c16b9fd45370d4afb5d3ebd307a6e263c25ffd45
rename to test/core/slice/percent_encode_corpus/c16b9fd45370d4afb5d3ebd307a6e263c25ffd45
diff --git a/test/core/support/percent_encode_corpus/d58c3cd4eab9b6d2343abfa1c25c90a383fe0ec3 b/test/core/slice/percent_encode_corpus/d58c3cd4eab9b6d2343abfa1c25c90a383fe0ec3
similarity index 100%
rename from test/core/support/percent_encode_corpus/d58c3cd4eab9b6d2343abfa1c25c90a383fe0ec3
rename to test/core/slice/percent_encode_corpus/d58c3cd4eab9b6d2343abfa1c25c90a383fe0ec3
diff --git a/test/core/support/percent_encode_corpus/e2619218ede30d2b7b8ecd601a9f0ae754b728b4 b/test/core/slice/percent_encode_corpus/e2619218ede30d2b7b8ecd601a9f0ae754b728b4
similarity index 100%
rename from test/core/support/percent_encode_corpus/e2619218ede30d2b7b8ecd601a9f0ae754b728b4
rename to test/core/slice/percent_encode_corpus/e2619218ede30d2b7b8ecd601a9f0ae754b728b4
diff --git a/test/core/support/percent_encode_corpus/f93b3653e453f0e3eea3198001be6ce46e64bd21 b/test/core/slice/percent_encode_corpus/f93b3653e453f0e3eea3198001be6ce46e64bd21
similarity index 100%
rename from test/core/support/percent_encode_corpus/f93b3653e453f0e3eea3198001be6ce46e64bd21
rename to test/core/slice/percent_encode_corpus/f93b3653e453f0e3eea3198001be6ce46e64bd21
diff --git a/test/core/support/percent_encode_corpus/fd41d029c7682ad3d1c40a9fd017a4c85b673a54 b/test/core/slice/percent_encode_corpus/fd41d029c7682ad3d1c40a9fd017a4c85b673a54
similarity index 100%
rename from test/core/support/percent_encode_corpus/fd41d029c7682ad3d1c40a9fd017a4c85b673a54
rename to test/core/slice/percent_encode_corpus/fd41d029c7682ad3d1c40a9fd017a4c85b673a54
diff --git a/test/core/support/percent_encode_corpus/xyz b/test/core/slice/percent_encode_corpus/xyz
similarity index 100%
rename from test/core/support/percent_encode_corpus/xyz
rename to test/core/slice/percent_encode_corpus/xyz
diff --git a/test/core/support/percent_encode_fuzzer.c b/test/core/slice/percent_encode_fuzzer.c
similarity index 73%
rename from test/core/support/percent_encode_fuzzer.c
rename to test/core/slice/percent_encode_fuzzer.c
index c954823..9698e79 100644
--- a/test/core/support/percent_encode_fuzzer.c
+++ b/test/core/slice/percent_encode_fuzzer.c
@@ -38,7 +38,7 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/lib/support/percent_encoding.h"
+#include "src/core/lib/slice/percent_encoding.h"
 #include "test/core/util/memory_counters.h"
 
 bool squelch = true;
@@ -47,27 +47,27 @@
 static void test(const uint8_t *data, size_t size, const uint8_t *dict) {
   struct grpc_memory_counters counters;
   grpc_memory_counters_init();
-  gpr_slice input = gpr_slice_from_copied_buffer((const char *)data, size);
-  gpr_slice output = gpr_percent_encode_slice(input, dict);
-  gpr_slice decoded_output;
+  grpc_slice input = grpc_slice_from_copied_buffer((const char *)data, size);
+  grpc_slice output = grpc_percent_encode_slice(input, dict);
+  grpc_slice decoded_output;
   // encoder must always produce decodable output
-  GPR_ASSERT(gpr_strict_percent_decode_slice(output, dict, &decoded_output));
-  gpr_slice permissive_decoded_output =
-      gpr_permissive_percent_decode_slice(output);
+  GPR_ASSERT(grpc_strict_percent_decode_slice(output, dict, &decoded_output));
+  grpc_slice permissive_decoded_output =
+      grpc_permissive_percent_decode_slice(output);
   // and decoded output must always match the input
-  GPR_ASSERT(gpr_slice_cmp(input, decoded_output) == 0);
-  GPR_ASSERT(gpr_slice_cmp(input, permissive_decoded_output) == 0);
-  gpr_slice_unref(input);
-  gpr_slice_unref(output);
-  gpr_slice_unref(decoded_output);
-  gpr_slice_unref(permissive_decoded_output);
+  GPR_ASSERT(grpc_slice_cmp(input, decoded_output) == 0);
+  GPR_ASSERT(grpc_slice_cmp(input, permissive_decoded_output) == 0);
+  grpc_slice_unref(input);
+  grpc_slice_unref(output);
+  grpc_slice_unref(decoded_output);
+  grpc_slice_unref(permissive_decoded_output);
   counters = grpc_memory_counters_snapshot();
   grpc_memory_counters_destroy();
   GPR_ASSERT(counters.total_size_relative == 0);
 }
 
 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
-  test(data, size, gpr_url_percent_encoding_unreserved_bytes);
-  test(data, size, gpr_compatible_percent_encoding_unreserved_bytes);
+  test(data, size, grpc_url_percent_encoding_unreserved_bytes);
+  test(data, size, grpc_compatible_percent_encoding_unreserved_bytes);
   return 0;
 }
diff --git a/test/core/support/percent_encoding_test.c b/test/core/slice/percent_encoding_test.c
similarity index 61%
rename from test/core/support/percent_encoding_test.c
rename to test/core/slice/percent_encoding_test.c
index ab5f3f2..d71c99f 100644
--- a/test/core/support/percent_encoding_test.c
+++ b/test/core/slice/percent_encoding_test.c
@@ -31,11 +31,12 @@
  *
  */
 
-#include "src/core/lib/support/percent_encoding.h"
+#include "src/core/lib/slice/percent_encoding.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 #include "test/core/util/test_config.h"
 
@@ -56,21 +57,21 @@
   gpr_free(raw_msg);
   gpr_free(encoded_msg);
 
-  gpr_slice raw_slice = gpr_slice_from_copied_buffer(raw, raw_length);
-  gpr_slice encoded_slice =
-      gpr_slice_from_copied_buffer(encoded, encoded_length);
-  gpr_slice raw2encoded_slice = gpr_percent_encode_slice(raw_slice, dict);
-  gpr_slice encoded2raw_slice;
-  GPR_ASSERT(
-      gpr_strict_percent_decode_slice(encoded_slice, dict, &encoded2raw_slice));
-  gpr_slice encoded2raw_permissive_slice =
-      gpr_permissive_percent_decode_slice(encoded_slice);
+  grpc_slice raw_slice = grpc_slice_from_copied_buffer(raw, raw_length);
+  grpc_slice encoded_slice =
+      grpc_slice_from_copied_buffer(encoded, encoded_length);
+  grpc_slice raw2encoded_slice = grpc_percent_encode_slice(raw_slice, dict);
+  grpc_slice encoded2raw_slice;
+  GPR_ASSERT(grpc_strict_percent_decode_slice(encoded_slice, dict,
+                                              &encoded2raw_slice));
+  grpc_slice encoded2raw_permissive_slice =
+      grpc_permissive_percent_decode_slice(encoded_slice);
 
   char *raw2encoded_msg =
-      gpr_dump_slice(raw2encoded_slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+      grpc_dump_slice(raw2encoded_slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
   char *encoded2raw_msg =
-      gpr_dump_slice(encoded2raw_slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
-  char *encoded2raw_permissive_msg = gpr_dump_slice(
+      grpc_dump_slice(encoded2raw_slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+  char *encoded2raw_permissive_msg = grpc_dump_slice(
       encoded2raw_permissive_slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
   gpr_log(GPR_DEBUG,
           "Result:\nraw2encoded = %s\nencoded2raw = %s\nencoded2raw_permissive "
@@ -80,15 +81,15 @@
   gpr_free(encoded2raw_msg);
   gpr_free(encoded2raw_permissive_msg);
 
-  GPR_ASSERT(0 == gpr_slice_cmp(raw_slice, encoded2raw_slice));
-  GPR_ASSERT(0 == gpr_slice_cmp(raw_slice, encoded2raw_permissive_slice));
-  GPR_ASSERT(0 == gpr_slice_cmp(encoded_slice, raw2encoded_slice));
+  GPR_ASSERT(0 == grpc_slice_cmp(raw_slice, encoded2raw_slice));
+  GPR_ASSERT(0 == grpc_slice_cmp(raw_slice, encoded2raw_permissive_slice));
+  GPR_ASSERT(0 == grpc_slice_cmp(encoded_slice, raw2encoded_slice));
 
-  gpr_slice_unref(encoded2raw_slice);
-  gpr_slice_unref(encoded2raw_permissive_slice);
-  gpr_slice_unref(raw2encoded_slice);
-  gpr_slice_unref(raw_slice);
-  gpr_slice_unref(encoded_slice);
+  grpc_slice_unref(encoded2raw_slice);
+  grpc_slice_unref(encoded2raw_permissive_slice);
+  grpc_slice_unref(raw2encoded_slice);
+  grpc_slice_unref(raw_slice);
+  grpc_slice_unref(encoded_slice);
 }
 
 static void test_nonconformant_vector(const char *encoded,
@@ -106,28 +107,28 @@
   gpr_free(permissive_unencoded_msg);
   gpr_free(encoded_msg);
 
-  gpr_slice permissive_unencoded_slice = gpr_slice_from_copied_buffer(
+  grpc_slice permissive_unencoded_slice = grpc_slice_from_copied_buffer(
       permissive_unencoded, permissive_unencoded_length);
-  gpr_slice encoded_slice =
-      gpr_slice_from_copied_buffer(encoded, encoded_length);
-  gpr_slice encoded2raw_slice;
-  GPR_ASSERT(!gpr_strict_percent_decode_slice(encoded_slice, dict,
-                                              &encoded2raw_slice));
-  gpr_slice encoded2raw_permissive_slice =
-      gpr_permissive_percent_decode_slice(encoded_slice);
+  grpc_slice encoded_slice =
+      grpc_slice_from_copied_buffer(encoded, encoded_length);
+  grpc_slice encoded2raw_slice;
+  GPR_ASSERT(!grpc_strict_percent_decode_slice(encoded_slice, dict,
+                                               &encoded2raw_slice));
+  grpc_slice encoded2raw_permissive_slice =
+      grpc_permissive_percent_decode_slice(encoded_slice);
 
-  char *encoded2raw_permissive_msg = gpr_dump_slice(
+  char *encoded2raw_permissive_msg = grpc_dump_slice(
       encoded2raw_permissive_slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
   gpr_log(GPR_DEBUG, "Result:\nencoded2raw_permissive = %s",
           encoded2raw_permissive_msg);
   gpr_free(encoded2raw_permissive_msg);
 
-  GPR_ASSERT(0 == gpr_slice_cmp(permissive_unencoded_slice,
-                                encoded2raw_permissive_slice));
+  GPR_ASSERT(0 == grpc_slice_cmp(permissive_unencoded_slice,
+                                 encoded2raw_permissive_slice));
 
-  gpr_slice_unref(permissive_unencoded_slice);
-  gpr_slice_unref(encoded2raw_permissive_slice);
-  gpr_slice_unref(encoded_slice);
+  grpc_slice_unref(permissive_unencoded_slice);
+  grpc_slice_unref(encoded2raw_permissive_slice);
+  grpc_slice_unref(encoded_slice);
 }
 
 int main(int argc, char **argv) {
@@ -135,23 +136,23 @@
   TEST_VECTOR(
       "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.~",
       "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.~",
-      gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("\x00", "%00", gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("\x01", "%01", gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("a b", "a%20b", gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR(" b", "%20b", gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("a b", "a b", gpr_compatible_percent_encoding_unreserved_bytes);
-  TEST_VECTOR(" b", " b", gpr_compatible_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("\x0f", "%0F", gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("\xff", "%FF", gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("\xee", "%EE", gpr_url_percent_encoding_unreserved_bytes);
+      grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("\x00", "%00", grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("\x01", "%01", grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("a b", "a%20b", grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR(" b", "%20b", grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("a b", "a b", grpc_compatible_percent_encoding_unreserved_bytes);
+  TEST_VECTOR(" b", " b", grpc_compatible_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("\x0f", "%0F", grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("\xff", "%FF", grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("\xee", "%EE", grpc_url_percent_encoding_unreserved_bytes);
   TEST_NONCONFORMANT_VECTOR("%", "%",
-                            gpr_url_percent_encoding_unreserved_bytes);
+                            grpc_url_percent_encoding_unreserved_bytes);
   TEST_NONCONFORMANT_VECTOR("%A", "%A",
-                            gpr_url_percent_encoding_unreserved_bytes);
+                            grpc_url_percent_encoding_unreserved_bytes);
   TEST_NONCONFORMANT_VECTOR("%AG", "%AG",
-                            gpr_url_percent_encoding_unreserved_bytes);
+                            grpc_url_percent_encoding_unreserved_bytes);
   TEST_NONCONFORMANT_VECTOR("\0", "\0",
-                            gpr_url_percent_encoding_unreserved_bytes);
+                            grpc_url_percent_encoding_unreserved_bytes);
   return 0;
 }
diff --git a/test/core/support/slice_buffer_test.c b/test/core/slice/slice_buffer_test.c
similarity index 71%
rename from test/core/support/slice_buffer_test.c
rename to test/core/slice/slice_buffer_test.c
index cf2da84..bf9ae19 100644
--- a/test/core/support/slice_buffer_test.c
+++ b/test/core/slice/slice_buffer_test.c
@@ -31,72 +31,72 @@
  *
  */
 
+#include <grpc/slice_buffer.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice_buffer.h>
 #include "test/core/util/test_config.h"
 
 void test_slice_buffer_add() {
-  gpr_slice_buffer buf;
-  gpr_slice aaa = gpr_slice_from_copied_string("aaa");
-  gpr_slice bb = gpr_slice_from_copied_string("bb");
+  grpc_slice_buffer buf;
+  grpc_slice aaa = grpc_slice_from_copied_string("aaa");
+  grpc_slice bb = grpc_slice_from_copied_string("bb");
   size_t i;
 
-  gpr_slice_buffer_init(&buf);
+  grpc_slice_buffer_init(&buf);
   for (i = 0; i < 10; i++) {
-    gpr_slice_ref(aaa);
-    gpr_slice_ref(bb);
-    gpr_slice_buffer_add(&buf, aaa);
-    gpr_slice_buffer_add(&buf, bb);
+    grpc_slice_ref(aaa);
+    grpc_slice_ref(bb);
+    grpc_slice_buffer_add(&buf, aaa);
+    grpc_slice_buffer_add(&buf, bb);
   }
   GPR_ASSERT(buf.count > 0);
   GPR_ASSERT(buf.length == 50);
-  gpr_slice_buffer_reset_and_unref(&buf);
+  grpc_slice_buffer_reset_and_unref(&buf);
   GPR_ASSERT(buf.count == 0);
   GPR_ASSERT(buf.length == 0);
   for (i = 0; i < 10; i++) {
-    gpr_slice_ref(aaa);
-    gpr_slice_ref(bb);
-    gpr_slice_buffer_add(&buf, aaa);
-    gpr_slice_buffer_add(&buf, bb);
+    grpc_slice_ref(aaa);
+    grpc_slice_ref(bb);
+    grpc_slice_buffer_add(&buf, aaa);
+    grpc_slice_buffer_add(&buf, bb);
   }
   GPR_ASSERT(buf.count > 0);
   GPR_ASSERT(buf.length == 50);
   for (i = 0; i < 10; i++) {
-    gpr_slice_buffer_pop(&buf);
-    gpr_slice_unref(aaa);
-    gpr_slice_unref(bb);
+    grpc_slice_buffer_pop(&buf);
+    grpc_slice_unref(aaa);
+    grpc_slice_unref(bb);
   }
   GPR_ASSERT(buf.count == 0);
   GPR_ASSERT(buf.length == 0);
-  gpr_slice_buffer_destroy(&buf);
+  grpc_slice_buffer_destroy(&buf);
 }
 
 void test_slice_buffer_move_first() {
-  gpr_slice slices[3];
-  gpr_slice_buffer src;
-  gpr_slice_buffer dst;
+  grpc_slice slices[3];
+  grpc_slice_buffer src;
+  grpc_slice_buffer dst;
   int idx = 0;
   size_t src_len = 0;
   size_t dst_len = 0;
 
-  slices[0] = gpr_slice_from_copied_string("aaa");
-  slices[1] = gpr_slice_from_copied_string("bbbb");
-  slices[2] = gpr_slice_from_copied_string("ccc");
+  slices[0] = grpc_slice_from_copied_string("aaa");
+  slices[1] = grpc_slice_from_copied_string("bbbb");
+  slices[2] = grpc_slice_from_copied_string("ccc");
 
-  gpr_slice_buffer_init(&src);
-  gpr_slice_buffer_init(&dst);
+  grpc_slice_buffer_init(&src);
+  grpc_slice_buffer_init(&dst);
   for (idx = 0; idx < 3; idx++) {
-    gpr_slice_ref(slices[idx]);
+    grpc_slice_ref(slices[idx]);
     /* For this test, it is important that we add each slice at a new
        slice index */
-    gpr_slice_buffer_add_indexed(&src, slices[idx]);
-    gpr_slice_buffer_add_indexed(&dst, slices[idx]);
+    grpc_slice_buffer_add_indexed(&src, slices[idx]);
+    grpc_slice_buffer_add_indexed(&dst, slices[idx]);
   }
 
   /* Case 1: Move more than the first slice's length from src to dst */
   src_len = src.length;
   dst_len = dst.length;
-  gpr_slice_buffer_move_first(&src, 4, &dst);
+  grpc_slice_buffer_move_first(&src, 4, &dst);
   src_len -= 4;
   dst_len += 4;
   GPR_ASSERT(src.length == src_len);
@@ -104,7 +104,7 @@
 
   /* src now has two slices ["bbb"] and  ["ccc"] */
   /* Case 2: Move the first slice from src to dst */
-  gpr_slice_buffer_move_first(&src, 3, &dst);
+  grpc_slice_buffer_move_first(&src, 3, &dst);
   src_len -= 3;
   dst_len += 3;
   GPR_ASSERT(src.length == src_len);
@@ -112,7 +112,7 @@
 
   /* src now has one slice ["ccc"] */
   /* Case 3: Move less than the first slice's length from src to dst*/
-  gpr_slice_buffer_move_first(&src, 2, &dst);
+  grpc_slice_buffer_move_first(&src, 2, &dst);
   src_len -= 2;
   dst_len += 2;
   GPR_ASSERT(src.length == src.length);
diff --git a/test/core/slice/slice_string_helpers_test.c b/test/core/slice/slice_string_helpers_test.c
new file mode 100644
index 0000000..6d6b55a
--- /dev/null
+++ b/test/core/slice/slice_string_helpers_test.c
@@ -0,0 +1,150 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/lib/slice/slice_string_helpers.h"
+
+#include <limits.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/string_util.h>
+#include <grpc/support/useful.h>
+
+#include "src/core/lib/support/string.h"
+#include "test/core/util/test_config.h"
+
+#define LOG_TEST_NAME(x) gpr_log(GPR_INFO, "%s", x)
+
+static void expect_slice_dump(grpc_slice slice, uint32_t flags,
+                              const char *result) {
+  char *got = grpc_dump_slice(slice, flags);
+  GPR_ASSERT(0 == strcmp(got, result));
+  gpr_free(got);
+  grpc_slice_unref(slice);
+}
+
+static void test_dump_slice(void) {
+  static const char *text = "HELLO WORLD!";
+  static const char *long_text =
+      "It was a bright cold day in April, and the clocks were striking "
+      "thirteen. Winston Smith, his chin nuzzled into his breast in an effort "
+      "to escape the vile wind, slipped quickly through the glass doors of "
+      "Victory Mansions, though not quickly enough to prevent a swirl of "
+      "gritty dust from entering along with him.";
+
+  LOG_TEST_NAME("test_dump_slice");
+
+  expect_slice_dump(grpc_slice_from_copied_string(text), GPR_DUMP_ASCII, text);
+  expect_slice_dump(grpc_slice_from_copied_string(long_text), GPR_DUMP_ASCII,
+                    long_text);
+  expect_slice_dump(grpc_slice_from_copied_buffer("\x01", 1), GPR_DUMP_HEX,
+                    "01");
+  expect_slice_dump(grpc_slice_from_copied_buffer("\x01", 1),
+                    GPR_DUMP_HEX | GPR_DUMP_ASCII, "01 '.'");
+}
+
+static void test_strsplit(void) {
+  grpc_slice_buffer *parts;
+  grpc_slice str;
+
+  LOG_TEST_NAME("test_strsplit");
+
+  parts = gpr_malloc(sizeof(grpc_slice_buffer));
+  grpc_slice_buffer_init(parts);
+
+  str = grpc_slice_from_copied_string("one, two, three, four");
+  grpc_slice_split(str, ", ", parts);
+  GPR_ASSERT(4 == parts->count);
+  GPR_ASSERT(0 == grpc_slice_str_cmp(parts->slices[0], "one"));
+  GPR_ASSERT(0 == grpc_slice_str_cmp(parts->slices[1], "two"));
+  GPR_ASSERT(0 == grpc_slice_str_cmp(parts->slices[2], "three"));
+  GPR_ASSERT(0 == grpc_slice_str_cmp(parts->slices[3], "four"));
+  grpc_slice_buffer_reset_and_unref(parts);
+  grpc_slice_unref(str);
+
+  /* separator not present in string */
+  str = grpc_slice_from_copied_string("one two three four");
+  grpc_slice_split(str, ", ", parts);
+  GPR_ASSERT(1 == parts->count);
+  GPR_ASSERT(0 == grpc_slice_str_cmp(parts->slices[0], "one two three four"));
+  grpc_slice_buffer_reset_and_unref(parts);
+  grpc_slice_unref(str);
+
+  /* separator at the end */
+  str = grpc_slice_from_copied_string("foo,");
+  grpc_slice_split(str, ",", parts);
+  GPR_ASSERT(2 == parts->count);
+  GPR_ASSERT(0 == grpc_slice_str_cmp(parts->slices[0], "foo"));
+  GPR_ASSERT(0 == grpc_slice_str_cmp(parts->slices[1], ""));
+  grpc_slice_buffer_reset_and_unref(parts);
+  grpc_slice_unref(str);
+
+  /* separator at the beginning */
+  str = grpc_slice_from_copied_string(",foo");
+  grpc_slice_split(str, ",", parts);
+  GPR_ASSERT(2 == parts->count);
+  GPR_ASSERT(0 == grpc_slice_str_cmp(parts->slices[0], ""));
+  GPR_ASSERT(0 == grpc_slice_str_cmp(parts->slices[1], "foo"));
+  grpc_slice_buffer_reset_and_unref(parts);
+  grpc_slice_unref(str);
+
+  /* standalone separator */
+  str = grpc_slice_from_copied_string(",");
+  grpc_slice_split(str, ",", parts);
+  GPR_ASSERT(2 == parts->count);
+  GPR_ASSERT(0 == grpc_slice_str_cmp(parts->slices[0], ""));
+  GPR_ASSERT(0 == grpc_slice_str_cmp(parts->slices[1], ""));
+  grpc_slice_buffer_reset_and_unref(parts);
+  grpc_slice_unref(str);
+
+  /* empty input */
+  str = grpc_slice_from_copied_string("");
+  grpc_slice_split(str, ", ", parts);
+  GPR_ASSERT(1 == parts->count);
+  GPR_ASSERT(0 == grpc_slice_str_cmp(parts->slices[0], ""));
+  grpc_slice_buffer_reset_and_unref(parts);
+  grpc_slice_unref(str);
+
+  grpc_slice_buffer_destroy(parts);
+  gpr_free(parts);
+}
+
+int main(int argc, char **argv) {
+  grpc_test_init(argc, argv);
+  test_dump_slice();
+  test_strsplit();
+  return 0;
+}
diff --git a/test/core/support/slice_test.c b/test/core/slice/slice_test.c
similarity index 71%
rename from test/core/support/slice_test.c
rename to test/core/slice/slice_test.c
index 06c364b..ca44bec 100644
--- a/test/core/support/slice_test.c
+++ b/test/core/slice/slice_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 
 #include <string.h>
 
@@ -42,23 +42,23 @@
 #define LOG_TEST_NAME(x) gpr_log(GPR_INFO, "%s", x);
 
 static void test_slice_malloc_returns_something_sensible(void) {
-  /* Calls gpr_slice_create for various lengths and verifies the internals for
+  /* Calls grpc_slice_create for various lengths and verifies the internals for
      consistency. */
   size_t length;
   size_t i;
-  gpr_slice slice;
+  grpc_slice slice;
 
   LOG_TEST_NAME("test_slice_malloc_returns_something_sensible");
 
   for (length = 0; length <= 1024; length++) {
-    slice = gpr_slice_malloc(length);
+    slice = grpc_slice_malloc(length);
     /* If there is a length, slice.data must be non-NULL. If length is zero
        we don't care. */
     if (length) {
-      GPR_ASSERT(GPR_SLICE_START_PTR(slice));
+      GPR_ASSERT(GRPC_SLICE_START_PTR(slice));
     }
     /* Returned slice length must be what was requested. */
-    GPR_ASSERT(GPR_SLICE_LENGTH(slice) == length);
+    GPR_ASSERT(GRPC_SLICE_LENGTH(slice) == length);
     /* If the slice has a refcount, it must be destroyable. */
     if (slice.refcount) {
       GPR_ASSERT(slice.refcount->ref != NULL);
@@ -66,10 +66,10 @@
     }
     /* We must be able to write to every byte of the data */
     for (i = 0; i < length; i++) {
-      GPR_SLICE_START_PTR(slice)[i] = (uint8_t)i;
+      GRPC_SLICE_START_PTR(slice)[i] = (uint8_t)i;
     }
     /* And finally we must succeed in destroying the slice */
-    gpr_slice_unref(slice);
+    grpc_slice_unref(slice);
   }
 }
 
@@ -78,11 +78,11 @@
 static void test_slice_new_returns_something_sensible(void) {
   uint8_t x;
 
-  gpr_slice slice = gpr_slice_new(&x, 1, do_nothing);
+  grpc_slice slice = grpc_slice_new(&x, 1, do_nothing);
   GPR_ASSERT(slice.refcount);
   GPR_ASSERT(slice.data.refcounted.bytes == &x);
   GPR_ASSERT(slice.data.refcounted.length == 1);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
 }
 
 /* destroy function that sets a mark to indicate it was called. */
@@ -91,18 +91,18 @@
 static void test_slice_new_with_user_data(void) {
   int marker = 0;
   uint8_t buf[2];
-  gpr_slice slice;
+  grpc_slice slice;
 
   buf[0] = 0;
   buf[1] = 1;
-  slice = gpr_slice_new_with_user_data(buf, 2, set_mark, &marker);
+  slice = grpc_slice_new_with_user_data(buf, 2, set_mark, &marker);
   GPR_ASSERT(marker == 0);
-  GPR_ASSERT(GPR_SLICE_LENGTH(slice) == 2);
-  GPR_ASSERT(GPR_SLICE_START_PTR(slice)[0] == 0);
-  GPR_ASSERT(GPR_SLICE_START_PTR(slice)[1] == 1);
+  GPR_ASSERT(GRPC_SLICE_LENGTH(slice) == 2);
+  GPR_ASSERT(GRPC_SLICE_START_PTR(slice)[0] == 0);
+  GPR_ASSERT(GRPC_SLICE_START_PTR(slice)[1] == 1);
 
   /* unref should cause destroy function to run. */
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   GPR_ASSERT(marker == 1);
 }
 
@@ -118,7 +118,7 @@
   int num_refs = 5; /* To test adding/removing an arbitrary number of refs */
   int i;
 
-  gpr_slice slice = gpr_slice_new_with_len(&x, 1, do_nothing_with_len_1);
+  grpc_slice slice = grpc_slice_new_with_len(&x, 1, do_nothing_with_len_1);
   GPR_ASSERT(slice.refcount); /* ref count is initialized to 1 at this point */
   GPR_ASSERT(slice.data.refcounted.bytes == &x);
   GPR_ASSERT(slice.data.refcounted.length == 1);
@@ -128,21 +128,21 @@
      make sure that that the destroy callback (i.e do_nothing_with_len_1()) is
      not called until the last unref operation */
   for (i = 0; i < num_refs; i++) {
-    gpr_slice_ref(slice);
+    grpc_slice_ref(slice);
   }
   for (i = 0; i < num_refs; i++) {
-    gpr_slice_unref(slice);
+    grpc_slice_unref(slice);
   }
   GPR_ASSERT(do_nothing_with_len_1_calls == 0); /* Shouldn't be called yet */
 
   /* last unref */
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   GPR_ASSERT(do_nothing_with_len_1_calls == 1);
 }
 
 static void test_slice_sub_works(unsigned length) {
-  gpr_slice slice;
-  gpr_slice sub;
+  grpc_slice slice;
+  grpc_slice sub;
   unsigned i, j, k;
 
   LOG_TEST_NAME("test_slice_sub_works");
@@ -150,38 +150,39 @@
 
   /* Create a slice in which each byte is equal to the distance from it to the
      beginning of the slice. */
-  slice = gpr_slice_malloc(length);
+  slice = grpc_slice_malloc(length);
   for (i = 0; i < length; i++) {
-    GPR_SLICE_START_PTR(slice)[i] = (uint8_t)i;
+    GRPC_SLICE_START_PTR(slice)[i] = (uint8_t)i;
   }
 
   /* Ensure that for all subsets length is correct and that we start on the
      correct byte. Additionally check that no copies were made. */
   for (i = 0; i < length; i++) {
     for (j = i; j < length; j++) {
-      sub = gpr_slice_sub(slice, i, j);
-      GPR_ASSERT(GPR_SLICE_LENGTH(sub) == j - i);
+      sub = grpc_slice_sub(slice, i, j);
+      GPR_ASSERT(GRPC_SLICE_LENGTH(sub) == j - i);
       for (k = 0; k < j - i; k++) {
-        GPR_ASSERT(GPR_SLICE_START_PTR(sub)[k] == (uint8_t)(i + k));
+        GPR_ASSERT(GRPC_SLICE_START_PTR(sub)[k] == (uint8_t)(i + k));
       }
-      gpr_slice_unref(sub);
+      grpc_slice_unref(sub);
     }
   }
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
 }
 
-static void check_head_tail(gpr_slice slice, gpr_slice head, gpr_slice tail) {
-  GPR_ASSERT(GPR_SLICE_LENGTH(slice) ==
-             GPR_SLICE_LENGTH(head) + GPR_SLICE_LENGTH(tail));
-  GPR_ASSERT(0 == memcmp(GPR_SLICE_START_PTR(slice), GPR_SLICE_START_PTR(head),
-                         GPR_SLICE_LENGTH(head)));
-  GPR_ASSERT(0 == memcmp(GPR_SLICE_START_PTR(slice) + GPR_SLICE_LENGTH(head),
-                         GPR_SLICE_START_PTR(tail), GPR_SLICE_LENGTH(tail)));
+static void check_head_tail(grpc_slice slice, grpc_slice head,
+                            grpc_slice tail) {
+  GPR_ASSERT(GRPC_SLICE_LENGTH(slice) ==
+             GRPC_SLICE_LENGTH(head) + GRPC_SLICE_LENGTH(tail));
+  GPR_ASSERT(0 == memcmp(GRPC_SLICE_START_PTR(slice),
+                         GRPC_SLICE_START_PTR(head), GRPC_SLICE_LENGTH(head)));
+  GPR_ASSERT(0 == memcmp(GRPC_SLICE_START_PTR(slice) + GRPC_SLICE_LENGTH(head),
+                         GRPC_SLICE_START_PTR(tail), GRPC_SLICE_LENGTH(tail)));
 }
 
 static void test_slice_split_head_works(size_t length) {
-  gpr_slice slice;
-  gpr_slice head, tail;
+  grpc_slice slice;
+  grpc_slice head, tail;
   size_t i;
 
   LOG_TEST_NAME("test_slice_split_head_works");
@@ -189,27 +190,27 @@
 
   /* Create a slice in which each byte is equal to the distance from it to the
      beginning of the slice. */
-  slice = gpr_slice_malloc(length);
+  slice = grpc_slice_malloc(length);
   for (i = 0; i < length; i++) {
-    GPR_SLICE_START_PTR(slice)[i] = (uint8_t)i;
+    GRPC_SLICE_START_PTR(slice)[i] = (uint8_t)i;
   }
 
   /* Ensure that for all subsets length is correct and that we start on the
      correct byte. Additionally check that no copies were made. */
   for (i = 0; i < length; i++) {
-    tail = gpr_slice_ref(slice);
-    head = gpr_slice_split_head(&tail, i);
+    tail = grpc_slice_ref(slice);
+    head = grpc_slice_split_head(&tail, i);
     check_head_tail(slice, head, tail);
-    gpr_slice_unref(tail);
-    gpr_slice_unref(head);
+    grpc_slice_unref(tail);
+    grpc_slice_unref(head);
   }
 
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
 }
 
 static void test_slice_split_tail_works(size_t length) {
-  gpr_slice slice;
-  gpr_slice head, tail;
+  grpc_slice slice;
+  grpc_slice head, tail;
   size_t i;
 
   LOG_TEST_NAME("test_slice_split_tail_works");
@@ -217,35 +218,35 @@
 
   /* Create a slice in which each byte is equal to the distance from it to the
      beginning of the slice. */
-  slice = gpr_slice_malloc(length);
+  slice = grpc_slice_malloc(length);
   for (i = 0; i < length; i++) {
-    GPR_SLICE_START_PTR(slice)[i] = (uint8_t)i;
+    GRPC_SLICE_START_PTR(slice)[i] = (uint8_t)i;
   }
 
   /* Ensure that for all subsets length is correct and that we start on the
      correct byte. Additionally check that no copies were made. */
   for (i = 0; i < length; i++) {
-    head = gpr_slice_ref(slice);
-    tail = gpr_slice_split_tail(&head, i);
+    head = grpc_slice_ref(slice);
+    tail = grpc_slice_split_tail(&head, i);
     check_head_tail(slice, head, tail);
-    gpr_slice_unref(tail);
-    gpr_slice_unref(head);
+    grpc_slice_unref(tail);
+    grpc_slice_unref(head);
   }
 
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
 }
 
 static void test_slice_from_copied_string_works(void) {
   static const char *text = "HELLO WORLD!";
-  gpr_slice slice;
+  grpc_slice slice;
 
   LOG_TEST_NAME("test_slice_from_copied_string_works");
 
-  slice = gpr_slice_from_copied_string(text);
-  GPR_ASSERT(strlen(text) == GPR_SLICE_LENGTH(slice));
-  GPR_ASSERT(0 ==
-             memcmp(text, GPR_SLICE_START_PTR(slice), GPR_SLICE_LENGTH(slice)));
-  gpr_slice_unref(slice);
+  slice = grpc_slice_from_copied_string(text);
+  GPR_ASSERT(strlen(text) == GRPC_SLICE_LENGTH(slice));
+  GPR_ASSERT(
+      0 == memcmp(text, GRPC_SLICE_START_PTR(slice), GRPC_SLICE_LENGTH(slice)));
+  grpc_slice_unref(slice);
 }
 
 int main(int argc, char **argv) {
diff --git a/test/core/support/string_test.c b/test/core/support/string_test.c
index 378e45a..78b77fa 100644
--- a/test/core/support/string_test.c
+++ b/test/core/support/string_test.c
@@ -76,34 +76,6 @@
   expect_dump("ab", 2, GPR_DUMP_HEX | GPR_DUMP_ASCII, "61 62 'ab'");
 }
 
-static void expect_slice_dump(gpr_slice slice, uint32_t flags,
-                              const char *result) {
-  char *got = gpr_dump_slice(slice, flags);
-  GPR_ASSERT(0 == strcmp(got, result));
-  gpr_free(got);
-  gpr_slice_unref(slice);
-}
-
-static void test_dump_slice(void) {
-  static const char *text = "HELLO WORLD!";
-  static const char *long_text =
-      "It was a bright cold day in April, and the clocks were striking "
-      "thirteen. Winston Smith, his chin nuzzled into his breast in an effort "
-      "to escape the vile wind, slipped quickly through the glass doors of "
-      "Victory Mansions, though not quickly enough to prevent a swirl of "
-      "gritty dust from entering along with him.";
-
-  LOG_TEST_NAME("test_dump_slice");
-
-  expect_slice_dump(gpr_slice_from_copied_string(text), GPR_DUMP_ASCII, text);
-  expect_slice_dump(gpr_slice_from_copied_string(long_text), GPR_DUMP_ASCII,
-                    long_text);
-  expect_slice_dump(gpr_slice_from_copied_buffer("\x01", 1), GPR_DUMP_HEX,
-                    "01");
-  expect_slice_dump(gpr_slice_from_copied_buffer("\x01", 1),
-                    GPR_DUMP_HEX | GPR_DUMP_ASCII, "01 '.'");
-}
-
 static void test_pu32_fail(const char *s) {
   uint32_t out;
   GPR_ASSERT(!gpr_parse_bytes_to_uint32(s, strlen(s), &out));
@@ -221,72 +193,6 @@
   gpr_free(joined);
 }
 
-static void test_strsplit(void) {
-  gpr_slice_buffer *parts;
-  gpr_slice str;
-
-  LOG_TEST_NAME("test_strsplit");
-
-  parts = gpr_malloc(sizeof(gpr_slice_buffer));
-  gpr_slice_buffer_init(parts);
-
-  str = gpr_slice_from_copied_string("one, two, three, four");
-  gpr_slice_split(str, ", ", parts);
-  GPR_ASSERT(4 == parts->count);
-  GPR_ASSERT(0 == gpr_slice_str_cmp(parts->slices[0], "one"));
-  GPR_ASSERT(0 == gpr_slice_str_cmp(parts->slices[1], "two"));
-  GPR_ASSERT(0 == gpr_slice_str_cmp(parts->slices[2], "three"));
-  GPR_ASSERT(0 == gpr_slice_str_cmp(parts->slices[3], "four"));
-  gpr_slice_buffer_reset_and_unref(parts);
-  gpr_slice_unref(str);
-
-  /* separator not present in string */
-  str = gpr_slice_from_copied_string("one two three four");
-  gpr_slice_split(str, ", ", parts);
-  GPR_ASSERT(1 == parts->count);
-  GPR_ASSERT(0 == gpr_slice_str_cmp(parts->slices[0], "one two three four"));
-  gpr_slice_buffer_reset_and_unref(parts);
-  gpr_slice_unref(str);
-
-  /* separator at the end */
-  str = gpr_slice_from_copied_string("foo,");
-  gpr_slice_split(str, ",", parts);
-  GPR_ASSERT(2 == parts->count);
-  GPR_ASSERT(0 == gpr_slice_str_cmp(parts->slices[0], "foo"));
-  GPR_ASSERT(0 == gpr_slice_str_cmp(parts->slices[1], ""));
-  gpr_slice_buffer_reset_and_unref(parts);
-  gpr_slice_unref(str);
-
-  /* separator at the beginning */
-  str = gpr_slice_from_copied_string(",foo");
-  gpr_slice_split(str, ",", parts);
-  GPR_ASSERT(2 == parts->count);
-  GPR_ASSERT(0 == gpr_slice_str_cmp(parts->slices[0], ""));
-  GPR_ASSERT(0 == gpr_slice_str_cmp(parts->slices[1], "foo"));
-  gpr_slice_buffer_reset_and_unref(parts);
-  gpr_slice_unref(str);
-
-  /* standalone separator */
-  str = gpr_slice_from_copied_string(",");
-  gpr_slice_split(str, ",", parts);
-  GPR_ASSERT(2 == parts->count);
-  GPR_ASSERT(0 == gpr_slice_str_cmp(parts->slices[0], ""));
-  GPR_ASSERT(0 == gpr_slice_str_cmp(parts->slices[1], ""));
-  gpr_slice_buffer_reset_and_unref(parts);
-  gpr_slice_unref(str);
-
-  /* empty input */
-  str = gpr_slice_from_copied_string("");
-  gpr_slice_split(str, ", ", parts);
-  GPR_ASSERT(1 == parts->count);
-  GPR_ASSERT(0 == gpr_slice_str_cmp(parts->slices[0], ""));
-  gpr_slice_buffer_reset_and_unref(parts);
-  gpr_slice_unref(str);
-
-  gpr_slice_buffer_destroy(parts);
-  gpr_free(parts);
-}
-
 static void test_ltoa() {
   char *str;
   char buf[GPR_LTOA_MIN_BUFSIZE];
@@ -377,12 +283,10 @@
   grpc_test_init(argc, argv);
   test_strdup();
   test_dump();
-  test_dump_slice();
   test_parse_uint32();
   test_asprintf();
   test_strjoin();
   test_strjoin_sep();
-  test_strsplit();
   test_ltoa();
   test_int64toa();
   test_leftpad();
diff --git a/test/core/surface/byte_buffer_reader_test.c b/test/core/surface/byte_buffer_reader_test.c
index 1ab1a06..d8d7a52 100644
--- a/test/core/surface/byte_buffer_reader_test.c
+++ b/test/core/surface/byte_buffer_reader_test.c
@@ -34,7 +34,7 @@
 #include <grpc/byte_buffer.h>
 #include <grpc/byte_buffer_reader.h>
 #include <grpc/grpc.h>
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
@@ -49,102 +49,102 @@
 #define LOG_TEST(x) gpr_log(GPR_INFO, "%s", x)
 
 static void test_read_one_slice(void) {
-  gpr_slice slice;
+  grpc_slice slice;
   grpc_byte_buffer *buffer;
   grpc_byte_buffer_reader reader;
-  gpr_slice first_slice, second_slice;
+  grpc_slice first_slice, second_slice;
   int first_code, second_code;
 
   LOG_TEST("test_read_one_slice");
-  slice = gpr_slice_from_copied_string("test");
+  slice = grpc_slice_from_copied_string("test");
   buffer = grpc_raw_byte_buffer_create(&slice, 1);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   GPR_ASSERT(grpc_byte_buffer_reader_init(&reader, buffer) &&
              "Couldn't init byte buffer reader");
   first_code = grpc_byte_buffer_reader_next(&reader, &first_slice);
   GPR_ASSERT(first_code != 0);
-  GPR_ASSERT(memcmp(GPR_SLICE_START_PTR(first_slice), "test", 4) == 0);
-  gpr_slice_unref(first_slice);
+  GPR_ASSERT(memcmp(GRPC_SLICE_START_PTR(first_slice), "test", 4) == 0);
+  grpc_slice_unref(first_slice);
   second_code = grpc_byte_buffer_reader_next(&reader, &second_slice);
   GPR_ASSERT(second_code == 0);
   grpc_byte_buffer_destroy(buffer);
 }
 
 static void test_read_one_slice_malloc(void) {
-  gpr_slice slice;
+  grpc_slice slice;
   grpc_byte_buffer *buffer;
   grpc_byte_buffer_reader reader;
-  gpr_slice first_slice, second_slice;
+  grpc_slice first_slice, second_slice;
   int first_code, second_code;
 
   LOG_TEST("test_read_one_slice_malloc");
-  slice = gpr_slice_malloc(4);
-  memcpy(GPR_SLICE_START_PTR(slice), "test", 4);
+  slice = grpc_slice_malloc(4);
+  memcpy(GRPC_SLICE_START_PTR(slice), "test", 4);
   buffer = grpc_raw_byte_buffer_create(&slice, 1);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   GPR_ASSERT(grpc_byte_buffer_reader_init(&reader, buffer) &&
              "Couldn't init byte buffer reader");
   first_code = grpc_byte_buffer_reader_next(&reader, &first_slice);
   GPR_ASSERT(first_code != 0);
-  GPR_ASSERT(memcmp(GPR_SLICE_START_PTR(first_slice), "test", 4) == 0);
-  gpr_slice_unref(first_slice);
+  GPR_ASSERT(memcmp(GRPC_SLICE_START_PTR(first_slice), "test", 4) == 0);
+  grpc_slice_unref(first_slice);
   second_code = grpc_byte_buffer_reader_next(&reader, &second_slice);
   GPR_ASSERT(second_code == 0);
   grpc_byte_buffer_destroy(buffer);
 }
 
 static void test_read_none_compressed_slice(void) {
-  gpr_slice slice;
+  grpc_slice slice;
   grpc_byte_buffer *buffer;
   grpc_byte_buffer_reader reader;
-  gpr_slice first_slice, second_slice;
+  grpc_slice first_slice, second_slice;
   int first_code, second_code;
 
   LOG_TEST("test_read_none_compressed_slice");
-  slice = gpr_slice_from_copied_string("test");
+  slice = grpc_slice_from_copied_string("test");
   buffer = grpc_raw_byte_buffer_create(&slice, 1);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   GPR_ASSERT(grpc_byte_buffer_reader_init(&reader, buffer) &&
              "Couldn't init byte buffer reader");
   first_code = grpc_byte_buffer_reader_next(&reader, &first_slice);
   GPR_ASSERT(first_code != 0);
-  GPR_ASSERT(memcmp(GPR_SLICE_START_PTR(first_slice), "test", 4) == 0);
-  gpr_slice_unref(first_slice);
+  GPR_ASSERT(memcmp(GRPC_SLICE_START_PTR(first_slice), "test", 4) == 0);
+  grpc_slice_unref(first_slice);
   second_code = grpc_byte_buffer_reader_next(&reader, &second_slice);
   GPR_ASSERT(second_code == 0);
   grpc_byte_buffer_destroy(buffer);
 }
 
 static void test_read_corrupted_slice(void) {
-  gpr_slice slice;
+  grpc_slice slice;
   grpc_byte_buffer *buffer;
   grpc_byte_buffer_reader reader;
 
   LOG_TEST("test_read_corrupted_slice");
-  slice = gpr_slice_from_copied_string("test");
+  slice = grpc_slice_from_copied_string("test");
   buffer = grpc_raw_byte_buffer_create(&slice, 1);
   buffer->data.raw.compression = GRPC_COMPRESS_GZIP; /* lies! */
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   GPR_ASSERT(!grpc_byte_buffer_reader_init(&reader, buffer));
   grpc_byte_buffer_destroy(buffer);
 }
 
 static void read_compressed_slice(grpc_compression_algorithm algorithm,
                                   size_t input_size) {
-  gpr_slice input_slice;
-  gpr_slice_buffer sliceb_in;
-  gpr_slice_buffer sliceb_out;
+  grpc_slice input_slice;
+  grpc_slice_buffer sliceb_in;
+  grpc_slice_buffer sliceb_out;
   grpc_byte_buffer *buffer;
   grpc_byte_buffer_reader reader;
-  gpr_slice read_slice;
+  grpc_slice read_slice;
   size_t read_count = 0;
 
-  gpr_slice_buffer_init(&sliceb_in);
-  gpr_slice_buffer_init(&sliceb_out);
+  grpc_slice_buffer_init(&sliceb_in);
+  grpc_slice_buffer_init(&sliceb_out);
 
-  input_slice = gpr_slice_malloc(input_size);
-  memset(GPR_SLICE_START_PTR(input_slice), 'a', input_size);
-  gpr_slice_buffer_add(&sliceb_in, input_slice); /* takes ownership */
+  input_slice = grpc_slice_malloc(input_size);
+  memset(GRPC_SLICE_START_PTR(input_slice), 'a', input_size);
+  grpc_slice_buffer_add(&sliceb_in, input_slice); /* takes ownership */
   GPR_ASSERT(grpc_msg_compress(algorithm, &sliceb_in, &sliceb_out));
 
   buffer = grpc_raw_compressed_byte_buffer_create(sliceb_out.slices,
@@ -153,17 +153,17 @@
              "Couldn't init byte buffer reader");
 
   while (grpc_byte_buffer_reader_next(&reader, &read_slice)) {
-    GPR_ASSERT(memcmp(GPR_SLICE_START_PTR(read_slice),
-                      GPR_SLICE_START_PTR(input_slice) + read_count,
-                      GPR_SLICE_LENGTH(read_slice)) == 0);
-    read_count += GPR_SLICE_LENGTH(read_slice);
-    gpr_slice_unref(read_slice);
+    GPR_ASSERT(memcmp(GRPC_SLICE_START_PTR(read_slice),
+                      GRPC_SLICE_START_PTR(input_slice) + read_count,
+                      GRPC_SLICE_LENGTH(read_slice)) == 0);
+    read_count += GRPC_SLICE_LENGTH(read_slice);
+    grpc_slice_unref(read_slice);
   }
   GPR_ASSERT(read_count == input_size);
   grpc_byte_buffer_reader_destroy(&reader);
   grpc_byte_buffer_destroy(buffer);
-  gpr_slice_buffer_destroy(&sliceb_out);
-  gpr_slice_buffer_destroy(&sliceb_in);
+  grpc_slice_buffer_destroy(&sliceb_out);
+  grpc_slice_buffer_destroy(&sliceb_in);
 }
 
 static void test_read_gzip_compressed_slice(void) {
@@ -179,15 +179,15 @@
 }
 
 static void test_byte_buffer_from_reader(void) {
-  gpr_slice slice;
+  grpc_slice slice;
   grpc_byte_buffer *buffer, *buffer_from_reader;
   grpc_byte_buffer_reader reader;
 
   LOG_TEST("test_byte_buffer_from_reader");
-  slice = gpr_slice_malloc(4);
-  memcpy(GPR_SLICE_START_PTR(slice), "test", 4);
+  slice = grpc_slice_malloc(4);
+  memcpy(GRPC_SLICE_START_PTR(slice), "test", 4);
   buffer = grpc_raw_byte_buffer_create(&slice, 1);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   GPR_ASSERT(grpc_byte_buffer_reader_init(&reader, buffer) &&
              "Couldn't init byte buffer reader");
 
@@ -195,7 +195,7 @@
   GPR_ASSERT(buffer->type == buffer_from_reader->type);
   GPR_ASSERT(buffer_from_reader->data.raw.compression == GRPC_COMPRESS_NONE);
   GPR_ASSERT(buffer_from_reader->data.raw.slice_buffer.count == 1);
-  GPR_ASSERT(memcmp(GPR_SLICE_START_PTR(
+  GPR_ASSERT(memcmp(GRPC_SLICE_START_PTR(
                         buffer_from_reader->data.raw.slice_buffer.slices[0]),
                     "test", 4) == 0);
 
@@ -206,70 +206,70 @@
 static void test_readall(void) {
   char *lotsa_as[512];
   char *lotsa_bs[1024];
-  gpr_slice slices[2];
+  grpc_slice slices[2];
   grpc_byte_buffer *buffer;
   grpc_byte_buffer_reader reader;
-  gpr_slice slice_out;
+  grpc_slice slice_out;
 
   LOG_TEST("test_readall");
 
   memset(lotsa_as, 'a', 512);
   memset(lotsa_bs, 'b', 1024);
   /* use slices large enough to overflow inlining */
-  slices[0] = gpr_slice_malloc(512);
-  memcpy(GPR_SLICE_START_PTR(slices[0]), lotsa_as, 512);
-  slices[1] = gpr_slice_malloc(1024);
-  memcpy(GPR_SLICE_START_PTR(slices[1]), lotsa_bs, 1024);
+  slices[0] = grpc_slice_malloc(512);
+  memcpy(GRPC_SLICE_START_PTR(slices[0]), lotsa_as, 512);
+  slices[1] = grpc_slice_malloc(1024);
+  memcpy(GRPC_SLICE_START_PTR(slices[1]), lotsa_bs, 1024);
 
   buffer = grpc_raw_byte_buffer_create(slices, 2);
-  gpr_slice_unref(slices[0]);
-  gpr_slice_unref(slices[1]);
+  grpc_slice_unref(slices[0]);
+  grpc_slice_unref(slices[1]);
 
   GPR_ASSERT(grpc_byte_buffer_reader_init(&reader, buffer) &&
              "Couldn't init byte buffer reader");
   slice_out = grpc_byte_buffer_reader_readall(&reader);
 
-  GPR_ASSERT(GPR_SLICE_LENGTH(slice_out) == 512 + 1024);
-  GPR_ASSERT(memcmp(GPR_SLICE_START_PTR(slice_out), lotsa_as, 512) == 0);
-  GPR_ASSERT(memcmp(&(GPR_SLICE_START_PTR(slice_out)[512]), lotsa_bs, 1024) ==
+  GPR_ASSERT(GRPC_SLICE_LENGTH(slice_out) == 512 + 1024);
+  GPR_ASSERT(memcmp(GRPC_SLICE_START_PTR(slice_out), lotsa_as, 512) == 0);
+  GPR_ASSERT(memcmp(&(GRPC_SLICE_START_PTR(slice_out)[512]), lotsa_bs, 1024) ==
              0);
-  gpr_slice_unref(slice_out);
+  grpc_slice_unref(slice_out);
   grpc_byte_buffer_destroy(buffer);
 }
 
 static void test_byte_buffer_copy(void) {
   char *lotsa_as[512];
   char *lotsa_bs[1024];
-  gpr_slice slices[2];
+  grpc_slice slices[2];
   grpc_byte_buffer *buffer;
   grpc_byte_buffer *copied_buffer;
   grpc_byte_buffer_reader reader;
-  gpr_slice slice_out;
+  grpc_slice slice_out;
 
   LOG_TEST("test_byte_buffer_copy");
 
   memset(lotsa_as, 'a', 512);
   memset(lotsa_bs, 'b', 1024);
   /* use slices large enough to overflow inlining */
-  slices[0] = gpr_slice_malloc(512);
-  memcpy(GPR_SLICE_START_PTR(slices[0]), lotsa_as, 512);
-  slices[1] = gpr_slice_malloc(1024);
-  memcpy(GPR_SLICE_START_PTR(slices[1]), lotsa_bs, 1024);
+  slices[0] = grpc_slice_malloc(512);
+  memcpy(GRPC_SLICE_START_PTR(slices[0]), lotsa_as, 512);
+  slices[1] = grpc_slice_malloc(1024);
+  memcpy(GRPC_SLICE_START_PTR(slices[1]), lotsa_bs, 1024);
 
   buffer = grpc_raw_byte_buffer_create(slices, 2);
-  gpr_slice_unref(slices[0]);
-  gpr_slice_unref(slices[1]);
+  grpc_slice_unref(slices[0]);
+  grpc_slice_unref(slices[1]);
   copied_buffer = grpc_byte_buffer_copy(buffer);
 
   GPR_ASSERT(grpc_byte_buffer_reader_init(&reader, buffer) &&
              "Couldn't init byte buffer reader");
   slice_out = grpc_byte_buffer_reader_readall(&reader);
 
-  GPR_ASSERT(GPR_SLICE_LENGTH(slice_out) == 512 + 1024);
-  GPR_ASSERT(memcmp(GPR_SLICE_START_PTR(slice_out), lotsa_as, 512) == 0);
-  GPR_ASSERT(memcmp(&(GPR_SLICE_START_PTR(slice_out)[512]), lotsa_bs, 1024) ==
+  GPR_ASSERT(GRPC_SLICE_LENGTH(slice_out) == 512 + 1024);
+  GPR_ASSERT(memcmp(GRPC_SLICE_START_PTR(slice_out), lotsa_as, 512) == 0);
+  GPR_ASSERT(memcmp(&(GRPC_SLICE_START_PTR(slice_out)[512]), lotsa_bs, 1024) ==
              0);
-  gpr_slice_unref(slice_out);
+  grpc_slice_unref(slice_out);
   grpc_byte_buffer_destroy(buffer);
   grpc_byte_buffer_destroy(copied_buffer);
 }
diff --git a/test/core/surface/public_headers_must_be_c89.c b/test/core/surface/public_headers_must_be_c89.c
index 53bdf61..d4cfa25 100644
--- a/test/core/surface/public_headers_must_be_c89.c
+++ b/test/core/surface/public_headers_must_be_c89.c
@@ -50,6 +50,8 @@
 #include <grpc/impl/codegen/status.h>
 #include <grpc/impl/codegen/sync.h>
 #include <grpc/impl/codegen/sync_generic.h>
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
 #include <grpc/status.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/atm.h>
@@ -60,8 +62,6 @@
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
-#include <grpc/support/slice.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/subprocess.h>
 #include <grpc/support/sync.h>
diff --git a/test/core/transport/chttp2/bin_decoder_test.c b/test/core/transport/chttp2/bin_decoder_test.c
index c4e6cd3..7ddc302 100644
--- a/test/core/transport/chttp2/bin_decoder_test.c
+++ b/test/core/transport/chttp2/bin_decoder_test.c
@@ -38,50 +38,51 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include "src/core/ext/transport/chttp2/transport/bin_encoder.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 
 static int all_ok = 1;
 
-static void expect_slice_eq(gpr_slice expected, gpr_slice slice, char *debug,
+static void expect_slice_eq(grpc_slice expected, grpc_slice slice, char *debug,
                             int line) {
-  if (0 != gpr_slice_cmp(slice, expected)) {
-    char *hs = gpr_dump_slice(slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
-    char *he = gpr_dump_slice(expected, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+  if (0 != grpc_slice_cmp(slice, expected)) {
+    char *hs = grpc_dump_slice(slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+    char *he = grpc_dump_slice(expected, GPR_DUMP_HEX | GPR_DUMP_ASCII);
     gpr_log(GPR_ERROR, "FAILED:%d: %s\ngot:  %s\nwant: %s", line, debug, hs,
             he);
     gpr_free(hs);
     gpr_free(he);
     all_ok = 0;
   }
-  gpr_slice_unref(expected);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(expected);
+  grpc_slice_unref(slice);
 }
 
-static gpr_slice base64_encode(const char *s) {
-  gpr_slice ss = gpr_slice_from_copied_string(s);
-  gpr_slice out = grpc_chttp2_base64_encode(ss);
-  gpr_slice_unref(ss);
+static grpc_slice base64_encode(const char *s) {
+  grpc_slice ss = grpc_slice_from_copied_string(s);
+  grpc_slice out = grpc_chttp2_base64_encode(ss);
+  grpc_slice_unref(ss);
   return out;
 }
 
-static gpr_slice base64_decode(const char *s) {
-  gpr_slice ss = gpr_slice_from_copied_string(s);
-  gpr_slice out = grpc_chttp2_base64_decode(ss);
-  gpr_slice_unref(ss);
+static grpc_slice base64_decode(const char *s) {
+  grpc_slice ss = grpc_slice_from_copied_string(s);
+  grpc_slice out = grpc_chttp2_base64_decode(ss);
+  grpc_slice_unref(ss);
   return out;
 }
 
-static gpr_slice base64_decode_with_length(const char *s,
-                                           size_t output_length) {
-  gpr_slice ss = gpr_slice_from_copied_string(s);
-  gpr_slice out = grpc_chttp2_base64_decode_with_length(ss, output_length);
-  gpr_slice_unref(ss);
+static grpc_slice base64_decode_with_length(const char *s,
+                                            size_t output_length) {
+  grpc_slice ss = grpc_slice_from_copied_string(s);
+  grpc_slice out = grpc_chttp2_base64_decode_with_length(ss, output_length);
+  grpc_slice_unref(ss);
   return out;
 }
 
-#define EXPECT_SLICE_EQ(expected, slice)                                   \
-  expect_slice_eq(                                                         \
-      gpr_slice_from_copied_buffer(expected, sizeof(expected) - 1), slice, \
+#define EXPECT_SLICE_EQ(expected, slice)                                    \
+  expect_slice_eq(                                                          \
+      grpc_slice_from_copied_buffer(expected, sizeof(expected) - 1), slice, \
       #slice, __LINE__);
 
 #define ENCODE_AND_DECODE(s) \
diff --git a/test/core/transport/chttp2/bin_encoder_test.c b/test/core/transport/chttp2/bin_encoder_test.c
index 08d1073..53b55a3 100644
--- a/test/core/transport/chttp2/bin_encoder_test.c
+++ b/test/core/transport/chttp2/bin_encoder_test.c
@@ -41,53 +41,54 @@
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 
 static int all_ok = 1;
 
-static void expect_slice_eq(gpr_slice expected, gpr_slice slice, char *debug,
+static void expect_slice_eq(grpc_slice expected, grpc_slice slice, char *debug,
                             int line) {
-  if (0 != gpr_slice_cmp(slice, expected)) {
-    char *hs = gpr_dump_slice(slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
-    char *he = gpr_dump_slice(expected, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+  if (0 != grpc_slice_cmp(slice, expected)) {
+    char *hs = grpc_dump_slice(slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+    char *he = grpc_dump_slice(expected, GPR_DUMP_HEX | GPR_DUMP_ASCII);
     gpr_log(GPR_ERROR, "FAILED:%d: %s\ngot:  %s\nwant: %s", line, debug, hs,
             he);
     gpr_free(hs);
     gpr_free(he);
     all_ok = 0;
   }
-  gpr_slice_unref(expected);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(expected);
+  grpc_slice_unref(slice);
 }
 
-static gpr_slice B64(const char *s) {
-  gpr_slice ss = gpr_slice_from_copied_string(s);
-  gpr_slice out = grpc_chttp2_base64_encode(ss);
-  gpr_slice_unref(ss);
+static grpc_slice B64(const char *s) {
+  grpc_slice ss = grpc_slice_from_copied_string(s);
+  grpc_slice out = grpc_chttp2_base64_encode(ss);
+  grpc_slice_unref(ss);
   return out;
 }
 
-static gpr_slice HUFF(const char *s) {
-  gpr_slice ss = gpr_slice_from_copied_string(s);
-  gpr_slice out = grpc_chttp2_huffman_compress(ss);
-  gpr_slice_unref(ss);
+static grpc_slice HUFF(const char *s) {
+  grpc_slice ss = grpc_slice_from_copied_string(s);
+  grpc_slice out = grpc_chttp2_huffman_compress(ss);
+  grpc_slice_unref(ss);
   return out;
 }
 
-#define EXPECT_SLICE_EQ(expected, slice)                                   \
-  expect_slice_eq(                                                         \
-      gpr_slice_from_copied_buffer(expected, sizeof(expected) - 1), slice, \
+#define EXPECT_SLICE_EQ(expected, slice)                                    \
+  expect_slice_eq(                                                          \
+      grpc_slice_from_copied_buffer(expected, sizeof(expected) - 1), slice, \
       #slice, __LINE__);
 
 static void expect_combined_equiv(const char *s, size_t len, int line) {
-  gpr_slice input = gpr_slice_from_copied_buffer(s, len);
-  gpr_slice base64 = grpc_chttp2_base64_encode(input);
-  gpr_slice expect = grpc_chttp2_huffman_compress(base64);
-  gpr_slice got = grpc_chttp2_base64_encode_and_huffman_compress_impl(input);
-  if (0 != gpr_slice_cmp(expect, got)) {
-    char *t = gpr_dump_slice(input, GPR_DUMP_HEX | GPR_DUMP_ASCII);
-    char *e = gpr_dump_slice(expect, GPR_DUMP_HEX | GPR_DUMP_ASCII);
-    char *g = gpr_dump_slice(got, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+  grpc_slice input = grpc_slice_from_copied_buffer(s, len);
+  grpc_slice base64 = grpc_chttp2_base64_encode(input);
+  grpc_slice expect = grpc_chttp2_huffman_compress(base64);
+  grpc_slice got = grpc_chttp2_base64_encode_and_huffman_compress_impl(input);
+  if (0 != grpc_slice_cmp(expect, got)) {
+    char *t = grpc_dump_slice(input, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+    char *e = grpc_dump_slice(expect, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+    char *g = grpc_dump_slice(got, GPR_DUMP_HEX | GPR_DUMP_ASCII);
     gpr_log(GPR_ERROR, "FAILED:%d:\ntest: %s\ngot:  %s\nwant: %s", line, t, g,
             e);
     gpr_free(t);
@@ -95,10 +96,10 @@
     gpr_free(g);
     all_ok = 0;
   }
-  gpr_slice_unref(input);
-  gpr_slice_unref(base64);
-  gpr_slice_unref(expect);
-  gpr_slice_unref(got);
+  grpc_slice_unref(input);
+  grpc_slice_unref(base64);
+  grpc_slice_unref(expect);
+  grpc_slice_unref(got);
 }
 
 #define EXPECT_COMBINED_EQUIV(x) \
diff --git a/test/core/transport/chttp2/hpack_encoder_test.c b/test/core/transport/chttp2/hpack_encoder_test.c
index 1c1c748..91421e1 100644
--- a/test/core/transport/chttp2/hpack_encoder_test.c
+++ b/test/core/transport/chttp2/hpack_encoder_test.c
@@ -41,6 +41,7 @@
 #include <grpc/support/string_util.h>
 
 #include "src/core/ext/transport/chttp2/transport/hpack_parser.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/transport/metadata.h"
 #include "test/core/util/parse_hexstring.h"
@@ -60,9 +61,9 @@
    hexstring passed in */
 static void verify(size_t window_available, int eof, size_t expect_window_used,
                    const char *expected, size_t nheaders, ...) {
-  gpr_slice_buffer output;
-  gpr_slice merged;
-  gpr_slice expect = parse_hexstring(expected);
+  grpc_slice_buffer output;
+  grpc_slice merged;
+  grpc_slice expect = parse_hexstring(expected);
   size_t i;
   va_list l;
   grpc_linked_mdelem *e = gpr_malloc(sizeof(*e) * nheaders);
@@ -93,19 +94,19 @@
   }
   to_delete[num_to_delete++] = e;
 
-  gpr_slice_buffer_init(&output);
+  grpc_slice_buffer_init(&output);
 
   grpc_transport_one_way_stats stats;
   memset(&stats, 0, sizeof(stats));
   grpc_chttp2_encode_header(&g_compressor, 0xdeadbeef, &b, eof, 16384, &stats,
                             &output);
   merged = grpc_slice_merge(output.slices, output.count);
-  gpr_slice_buffer_destroy(&output);
+  grpc_slice_buffer_destroy(&output);
   grpc_metadata_batch_destroy(&b);
 
-  if (0 != gpr_slice_cmp(merged, expect)) {
-    char *expect_str = gpr_dump_slice(expect, GPR_DUMP_HEX | GPR_DUMP_ASCII);
-    char *got_str = gpr_dump_slice(merged, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+  if (0 != grpc_slice_cmp(merged, expect)) {
+    char *expect_str = grpc_dump_slice(expect, GPR_DUMP_HEX | GPR_DUMP_ASCII);
+    char *got_str = grpc_dump_slice(merged, GPR_DUMP_HEX | GPR_DUMP_ASCII);
     gpr_log(GPR_ERROR, "mismatched output for %s", expected);
     gpr_log(GPR_ERROR, "EXPECT: %s", expect_str);
     gpr_log(GPR_ERROR, "GOT:    %s", got_str);
@@ -114,8 +115,8 @@
     g_failure = 1;
   }
 
-  gpr_slice_unref(merged);
-  gpr_slice_unref(expect);
+  grpc_slice_unref(merged);
+  grpc_slice_unref(expect);
 }
 
 static void test_basic_headers(void) {
@@ -186,7 +187,7 @@
 
 static void verify_table_size_change_match_elem_size(const char *key,
                                                      const char *value) {
-  gpr_slice_buffer output;
+  grpc_slice_buffer output;
   grpc_mdelem *elem = grpc_mdelem_from_strings(key, value);
   size_t elem_size = grpc_mdelem_get_size_in_hpack_table(elem);
   size_t initial_table_size = g_compressor.table_size;
@@ -198,13 +199,13 @@
   e[0].next = NULL;
   b.list.head = &e[0];
   b.list.tail = &e[0];
-  gpr_slice_buffer_init(&output);
+  grpc_slice_buffer_init(&output);
 
   grpc_transport_one_way_stats stats;
   memset(&stats, 0, sizeof(stats));
   grpc_chttp2_encode_header(&g_compressor, 0xdeadbeef, &b, 0, 16384, &stats,
                             &output);
-  gpr_slice_buffer_destroy(&output);
+  grpc_slice_buffer_destroy(&output);
   grpc_metadata_batch_destroy(&b);
 
   GPR_ASSERT(g_compressor.table_size == elem_size + initial_table_size);
diff --git a/test/core/transport/chttp2/hpack_parser_test.c b/test/core/transport/chttp2/hpack_parser_test.c
index 55b64f5..e2813df 100644
--- a/test/core/transport/chttp2/hpack_parser_test.c
+++ b/test/core/transport/chttp2/hpack_parser_test.c
@@ -36,9 +36,9 @@
 #include <stdarg.h>
 
 #include <grpc/grpc.h>
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 #include "test/core/util/parse_hexstring.h"
 #include "test/core/util/slice_splitter.h"
 #include "test/core/util/test_config.h"
@@ -52,16 +52,16 @@
   GPR_ASSERT(ekey);
   evalue = va_arg(chk->args, char *);
   GPR_ASSERT(evalue);
-  GPR_ASSERT(gpr_slice_str_cmp(md->key->slice, ekey) == 0);
-  GPR_ASSERT(gpr_slice_str_cmp(md->value->slice, evalue) == 0);
+  GPR_ASSERT(grpc_slice_str_cmp(md->key->slice, ekey) == 0);
+  GPR_ASSERT(grpc_slice_str_cmp(md->value->slice, evalue) == 0);
   GRPC_MDELEM_UNREF(md);
 }
 
 static void test_vector(grpc_chttp2_hpack_parser *parser,
                         grpc_slice_split_mode mode, const char *hexstring,
                         ... /* char *key, char *value */) {
-  gpr_slice input = parse_hexstring(hexstring);
-  gpr_slice *slices;
+  grpc_slice input = parse_hexstring(hexstring);
+  grpc_slice *slices;
   size_t nslices;
   size_t i;
   test_checker chk;
@@ -72,18 +72,18 @@
   parser->on_header_user_data = &chk;
 
   grpc_split_slices(mode, &input, 1, &slices, &nslices);
-  gpr_slice_unref(input);
+  grpc_slice_unref(input);
 
   for (i = 0; i < nslices; i++) {
     grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
     GPR_ASSERT(grpc_chttp2_hpack_parser_parse(
-                   &exec_ctx, parser, GPR_SLICE_START_PTR(slices[i]),
-                   GPR_SLICE_END_PTR(slices[i])) == GRPC_ERROR_NONE);
+                   &exec_ctx, parser, GRPC_SLICE_START_PTR(slices[i]),
+                   GRPC_SLICE_END_PTR(slices[i])) == GRPC_ERROR_NONE);
     grpc_exec_ctx_finish(&exec_ctx);
   }
 
   for (i = 0; i < nslices; i++) {
-    gpr_slice_unref(slices[i]);
+    grpc_slice_unref(slices[i]);
   }
   gpr_free(slices);
 
diff --git a/test/core/transport/chttp2/hpack_table_test.c b/test/core/transport/chttp2/hpack_table_test.c
index 75b0ef4..1a7e244 100644
--- a/test/core/transport/chttp2/hpack_table_test.c
+++ b/test/core/transport/chttp2/hpack_table_test.c
@@ -48,7 +48,7 @@
 
 static void assert_str(const grpc_chttp2_hptbl *tbl, grpc_mdstr *mdstr,
                        const char *str) {
-  GPR_ASSERT(gpr_slice_str_cmp(mdstr->slice, str) == 0);
+  GPR_ASSERT(grpc_slice_str_cmp(mdstr->slice, str) == 0);
 }
 
 static void assert_index(const grpc_chttp2_hptbl *tbl, uint32_t idx,
diff --git a/test/core/transport/chttp2/varint_test.c b/test/core/transport/chttp2/varint_test.c
index 3552bf0..e29be4b 100644
--- a/test/core/transport/chttp2/varint_test.c
+++ b/test/core/transport/chttp2/varint_test.c
@@ -33,24 +33,25 @@
 
 #include "src/core/ext/transport/chttp2/transport/varint.h"
 
+#include <grpc/slice.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 
 #include "test/core/util/test_config.h"
 
 static void test_varint(uint32_t value, uint32_t prefix_bits, uint8_t prefix_or,
                         const char *expect_bytes, size_t expect_length) {
   uint32_t nbytes = GRPC_CHTTP2_VARINT_LENGTH(value, prefix_bits);
-  gpr_slice expect = gpr_slice_from_copied_buffer(expect_bytes, expect_length);
-  gpr_slice slice;
+  grpc_slice expect =
+      grpc_slice_from_copied_buffer(expect_bytes, expect_length);
+  grpc_slice slice;
   gpr_log(GPR_DEBUG, "Test: 0x%08x", value);
   GPR_ASSERT(nbytes == expect_length);
-  slice = gpr_slice_malloc(nbytes);
+  slice = grpc_slice_malloc(nbytes);
   GRPC_CHTTP2_WRITE_VARINT(value, prefix_bits, prefix_or,
-                           GPR_SLICE_START_PTR(slice), nbytes);
-  GPR_ASSERT(gpr_slice_cmp(expect, slice) == 0);
-  gpr_slice_unref(expect);
-  gpr_slice_unref(slice);
+                           GRPC_SLICE_START_PTR(slice), nbytes);
+  GPR_ASSERT(grpc_slice_cmp(expect, slice) == 0);
+  grpc_slice_unref(expect);
+  grpc_slice_unref(slice);
 }
 
 #define TEST_VARINT(value, prefix_bits, prefix_or, expect) \
diff --git a/test/core/transport/metadata_test.c b/test/core/transport/metadata_test.c
index 0078929..5c89d85 100644
--- a/test/core/transport/metadata_test.c
+++ b/test/core/transport/metadata_test.c
@@ -68,8 +68,8 @@
   s3 = grpc_mdstr_from_string("very much not hello");
   GPR_ASSERT(s1 == s2);
   GPR_ASSERT(s3 != s1);
-  GPR_ASSERT(gpr_slice_str_cmp(s1->slice, "hello") == 0);
-  GPR_ASSERT(gpr_slice_str_cmp(s3->slice, "very much not hello") == 0);
+  GPR_ASSERT(grpc_slice_str_cmp(s1->slice, "hello") == 0);
+  GPR_ASSERT(grpc_slice_str_cmp(s3->slice, "very much not hello") == 0);
   GRPC_MDSTR_UNREF(s1);
   GRPC_MDSTR_UNREF(s2);
   GRPC_MDSTR_UNREF(s3);
@@ -89,9 +89,9 @@
   GPR_ASSERT(m3 != m1);
   GPR_ASSERT(m3->key == m1->key);
   GPR_ASSERT(m3->value != m1->value);
-  GPR_ASSERT(gpr_slice_str_cmp(m1->key->slice, "a") == 0);
-  GPR_ASSERT(gpr_slice_str_cmp(m1->value->slice, "b") == 0);
-  GPR_ASSERT(gpr_slice_str_cmp(m3->value->slice, "c") == 0);
+  GPR_ASSERT(grpc_slice_str_cmp(m1->key->slice, "a") == 0);
+  GPR_ASSERT(grpc_slice_str_cmp(m1->value->slice, "b") == 0);
+  GPR_ASSERT(grpc_slice_str_cmp(m3->value->slice, "c") == 0);
   GRPC_MDELEM_UNREF(m1);
   GRPC_MDELEM_UNREF(m2);
   GRPC_MDELEM_UNREF(m3);
@@ -205,7 +205,7 @@
 static void test_slices_work(void) {
   /* ensure no memory leaks when switching representation from mdstr to slice */
   grpc_mdstr *str;
-  gpr_slice slice;
+  grpc_slice slice;
 
   LOG_TEST("test_slices_work");
 
@@ -213,14 +213,14 @@
 
   str = grpc_mdstr_from_string(
       "123456789012345678901234567890123456789012345678901234567890");
-  slice = gpr_slice_ref(str->slice);
+  slice = grpc_slice_ref(str->slice);
   GRPC_MDSTR_UNREF(str);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
 
   str = grpc_mdstr_from_string(
       "123456789012345678901234567890123456789012345678901234567890");
-  slice = gpr_slice_ref(str->slice);
-  gpr_slice_unref(slice);
+  slice = grpc_slice_ref(str->slice);
+  grpc_slice_unref(slice);
   GRPC_MDSTR_UNREF(str);
 
   grpc_shutdown();
@@ -228,8 +228,8 @@
 
 static void test_base64_and_huffman_works(void) {
   grpc_mdstr *str;
-  gpr_slice slice1;
-  gpr_slice slice2;
+  grpc_slice slice1;
+  grpc_slice slice2;
 
   LOG_TEST("test_base64_and_huffman_works");
 
@@ -237,9 +237,9 @@
   str = grpc_mdstr_from_string("abcdefg");
   slice1 = grpc_mdstr_as_base64_encoded_and_huffman_compressed(str);
   slice2 = grpc_chttp2_base64_encode_and_huffman_compress(str->slice);
-  GPR_ASSERT(0 == gpr_slice_cmp(slice1, slice2));
+  GPR_ASSERT(0 == grpc_slice_cmp(slice1, slice2));
 
-  gpr_slice_unref(slice2);
+  grpc_slice_unref(slice2);
   GRPC_MDSTR_UNREF(str);
   grpc_shutdown();
 }
@@ -276,13 +276,13 @@
   grpc_mdelem *elem = grpc_mdelem_from_string_and_buffer(key, value, value_len);
   GPR_ASSERT(grpc_is_binary_header(key, strlen(key)));
   size_t elem_size = grpc_mdelem_get_size_in_hpack_table(elem);
-  gpr_slice value_slice =
-      gpr_slice_from_copied_buffer((const char *)value, value_len);
-  gpr_slice base64_encoded = grpc_chttp2_base64_encode(value_slice);
-  size_t expected_size = 32 + strlen(key) + GPR_SLICE_LENGTH(base64_encoded);
+  grpc_slice value_slice =
+      grpc_slice_from_copied_buffer((const char *)value, value_len);
+  grpc_slice base64_encoded = grpc_chttp2_base64_encode(value_slice);
+  size_t expected_size = 32 + strlen(key) + GRPC_SLICE_LENGTH(base64_encoded);
   GPR_ASSERT(expected_size == elem_size);
-  gpr_slice_unref(value_slice);
-  gpr_slice_unref(base64_encoded);
+  grpc_slice_unref(value_slice);
+  grpc_slice_unref(base64_encoded);
   GRPC_MDELEM_UNREF(elem);
 }
 
diff --git a/test/core/util/mock_endpoint.c b/test/core/util/mock_endpoint.c
index 2dac877..28ff064 100644
--- a/test/core/util/mock_endpoint.c
+++ b/test/core/util/mock_endpoint.c
@@ -41,19 +41,19 @@
 typedef struct grpc_mock_endpoint {
   grpc_endpoint base;
   gpr_mu mu;
-  void (*on_write)(gpr_slice slice);
-  gpr_slice_buffer read_buffer;
-  gpr_slice_buffer *on_read_out;
+  void (*on_write)(grpc_slice slice);
+  grpc_slice_buffer read_buffer;
+  grpc_slice_buffer *on_read_out;
   grpc_closure *on_read;
   grpc_resource_user *resource_user;
 } grpc_mock_endpoint;
 
 static void me_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                    gpr_slice_buffer *slices, grpc_closure *cb) {
+                    grpc_slice_buffer *slices, grpc_closure *cb) {
   grpc_mock_endpoint *m = (grpc_mock_endpoint *)ep;
   gpr_mu_lock(&m->mu);
   if (m->read_buffer.count > 0) {
-    gpr_slice_buffer_swap(&m->read_buffer, slices);
+    grpc_slice_buffer_swap(&m->read_buffer, slices);
     grpc_exec_ctx_sched(exec_ctx, cb, GRPC_ERROR_NONE, NULL);
   } else {
     m->on_read = cb;
@@ -63,7 +63,7 @@
 }
 
 static void me_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                     gpr_slice_buffer *slices, grpc_closure *cb) {
+                     grpc_slice_buffer *slices, grpc_closure *cb) {
   grpc_mock_endpoint *m = (grpc_mock_endpoint *)ep;
   for (size_t i = 0; i < slices->count; i++) {
     m->on_write(slices->slices[i]);
@@ -91,7 +91,7 @@
 
 static void me_destroy(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep) {
   grpc_mock_endpoint *m = (grpc_mock_endpoint *)ep;
-  gpr_slice_buffer_destroy(&m->read_buffer);
+  grpc_slice_buffer_destroy(&m->read_buffer);
   grpc_resource_user_unref(exec_ctx, m->resource_user);
   gpr_free(m);
 }
@@ -119,7 +119,7 @@
     me_get_peer,
 };
 
-grpc_endpoint *grpc_mock_endpoint_create(void (*on_write)(gpr_slice slice),
+grpc_endpoint *grpc_mock_endpoint_create(void (*on_write)(grpc_slice slice),
                                          grpc_resource_quota *resource_quota) {
   grpc_mock_endpoint *m = gpr_malloc(sizeof(*m));
   m->base.vtable = &vtable;
@@ -127,7 +127,7 @@
   gpr_asprintf(&name, "mock_endpoint_%" PRIxPTR, (intptr_t)m);
   m->resource_user = grpc_resource_user_create(resource_quota, name);
   gpr_free(name);
-  gpr_slice_buffer_init(&m->read_buffer);
+  grpc_slice_buffer_init(&m->read_buffer);
   gpr_mu_init(&m->mu);
   m->on_write = on_write;
   m->on_read = NULL;
@@ -135,15 +135,15 @@
 }
 
 void grpc_mock_endpoint_put_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                                 gpr_slice slice) {
+                                 grpc_slice slice) {
   grpc_mock_endpoint *m = (grpc_mock_endpoint *)ep;
   gpr_mu_lock(&m->mu);
   if (m->on_read != NULL) {
-    gpr_slice_buffer_add(m->on_read_out, slice);
+    grpc_slice_buffer_add(m->on_read_out, slice);
     grpc_exec_ctx_sched(exec_ctx, m->on_read, GRPC_ERROR_NONE, NULL);
     m->on_read = NULL;
   } else {
-    gpr_slice_buffer_add(&m->read_buffer, slice);
+    grpc_slice_buffer_add(&m->read_buffer, slice);
   }
   gpr_mu_unlock(&m->mu);
 }
diff --git a/test/core/util/mock_endpoint.h b/test/core/util/mock_endpoint.h
index b3a464c..ec7f0fc 100644
--- a/test/core/util/mock_endpoint.h
+++ b/test/core/util/mock_endpoint.h
@@ -36,9 +36,10 @@
 
 #include "src/core/lib/iomgr/endpoint.h"
 
-grpc_endpoint *grpc_mock_endpoint_create(void (*on_write)(gpr_slice slice),
+grpc_endpoint *grpc_mock_endpoint_create(void (*on_write)(grpc_slice slice),
                                          grpc_resource_quota *resource_quota);
 void grpc_mock_endpoint_put_read(grpc_exec_ctx *exec_ctx,
-                                 grpc_endpoint *mock_endpoint, gpr_slice slice);
+                                 grpc_endpoint *mock_endpoint,
+                                 grpc_slice slice);
 
 #endif
diff --git a/test/core/util/one_corpus_entry_fuzzer.c b/test/core/util/one_corpus_entry_fuzzer.c
index 95ae4cf..c016ebb 100644
--- a/test/core/util/one_corpus_entry_fuzzer.c
+++ b/test/core/util/one_corpus_entry_fuzzer.c
@@ -42,12 +42,13 @@
 extern bool leak_check;
 
 int main(int argc, char **argv) {
-  gpr_slice buffer;
+  grpc_slice buffer;
   squelch = false;
   leak_check = false;
   GPR_ASSERT(
       GRPC_LOG_IF_ERROR("load_file", grpc_load_file(argv[1], 0, &buffer)));
-  LLVMFuzzerTestOneInput(GPR_SLICE_START_PTR(buffer), GPR_SLICE_LENGTH(buffer));
-  gpr_slice_unref(buffer);
+  LLVMFuzzerTestOneInput(GRPC_SLICE_START_PTR(buffer),
+                         GRPC_SLICE_LENGTH(buffer));
+  grpc_slice_unref(buffer);
   return 0;
 }
diff --git a/test/core/util/parse_hexstring.c b/test/core/util/parse_hexstring.c
index 3ad7ce5..60ab1bb 100644
--- a/test/core/util/parse_hexstring.c
+++ b/test/core/util/parse_hexstring.c
@@ -34,12 +34,12 @@
 #include "test/core/util/parse_hexstring.h"
 #include <grpc/support/log.h>
 
-gpr_slice parse_hexstring(const char *hexstring) {
+grpc_slice parse_hexstring(const char *hexstring) {
   size_t nibbles = 0;
   const char *p = 0;
   uint8_t *out;
   uint8_t temp;
-  gpr_slice slice;
+  grpc_slice slice;
 
   for (p = hexstring; *p; p++) {
     nibbles += (*p >= '0' && *p <= '9') || (*p >= 'a' && *p <= 'f');
@@ -47,8 +47,8 @@
 
   GPR_ASSERT((nibbles & 1) == 0);
 
-  slice = gpr_slice_malloc(nibbles / 2);
-  out = GPR_SLICE_START_PTR(slice);
+  slice = grpc_slice_malloc(nibbles / 2);
+  out = GRPC_SLICE_START_PTR(slice);
 
   nibbles = 0;
   temp = 0;
diff --git a/test/core/util/parse_hexstring.h b/test/core/util/parse_hexstring.h
index ddbfe54..32a4426 100644
--- a/test/core/util/parse_hexstring.h
+++ b/test/core/util/parse_hexstring.h
@@ -34,8 +34,8 @@
 #ifndef GRPC_TEST_CORE_UTIL_PARSE_HEXSTRING_H
 #define GRPC_TEST_CORE_UTIL_PARSE_HEXSTRING_H
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 
-gpr_slice parse_hexstring(const char *hexstring);
+grpc_slice parse_hexstring(const char *hexstring);
 
 #endif /* GRPC_TEST_CORE_UTIL_PARSE_HEXSTRING_H */
diff --git a/test/core/util/passthru_endpoint.c b/test/core/util/passthru_endpoint.c
index a920a15..8b323d1 100644
--- a/test/core/util/passthru_endpoint.c
+++ b/test/core/util/passthru_endpoint.c
@@ -43,8 +43,8 @@
 typedef struct {
   grpc_endpoint base;
   passthru_endpoint *parent;
-  gpr_slice_buffer read_buffer;
-  gpr_slice_buffer *on_read_out;
+  grpc_slice_buffer read_buffer;
+  grpc_slice_buffer *on_read_out;
   grpc_closure *on_read;
   grpc_resource_user *resource_user;
 } half;
@@ -58,14 +58,14 @@
 };
 
 static void me_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                    gpr_slice_buffer *slices, grpc_closure *cb) {
+                    grpc_slice_buffer *slices, grpc_closure *cb) {
   half *m = (half *)ep;
   gpr_mu_lock(&m->parent->mu);
   if (m->parent->shutdown) {
     grpc_exec_ctx_sched(exec_ctx, cb, GRPC_ERROR_CREATE("Already shutdown"),
                         NULL);
   } else if (m->read_buffer.count > 0) {
-    gpr_slice_buffer_swap(&m->read_buffer, slices);
+    grpc_slice_buffer_swap(&m->read_buffer, slices);
     grpc_exec_ctx_sched(exec_ctx, cb, GRPC_ERROR_NONE, NULL);
   } else {
     m->on_read = cb;
@@ -80,7 +80,7 @@
 }
 
 static void me_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                     gpr_slice_buffer *slices, grpc_closure *cb) {
+                     grpc_slice_buffer *slices, grpc_closure *cb) {
   half *m = other_half((half *)ep);
   gpr_mu_lock(&m->parent->mu);
   grpc_error *error = GRPC_ERROR_NONE;
@@ -88,13 +88,13 @@
     error = GRPC_ERROR_CREATE("Endpoint already shutdown");
   } else if (m->on_read != NULL) {
     for (size_t i = 0; i < slices->count; i++) {
-      gpr_slice_buffer_add(m->on_read_out, gpr_slice_ref(slices->slices[i]));
+      grpc_slice_buffer_add(m->on_read_out, grpc_slice_ref(slices->slices[i]));
     }
     grpc_exec_ctx_sched(exec_ctx, m->on_read, GRPC_ERROR_NONE, NULL);
     m->on_read = NULL;
   } else {
     for (size_t i = 0; i < slices->count; i++) {
-      gpr_slice_buffer_add(&m->read_buffer, gpr_slice_ref(slices->slices[i]));
+      grpc_slice_buffer_add(&m->read_buffer, grpc_slice_ref(slices->slices[i]));
     }
   }
   gpr_mu_unlock(&m->parent->mu);
@@ -132,8 +132,8 @@
   if (0 == --p->halves) {
     gpr_mu_unlock(&p->mu);
     gpr_mu_destroy(&p->mu);
-    gpr_slice_buffer_destroy(&p->client.read_buffer);
-    gpr_slice_buffer_destroy(&p->server.read_buffer);
+    grpc_slice_buffer_destroy(&p->client.read_buffer);
+    grpc_slice_buffer_destroy(&p->server.read_buffer);
     grpc_resource_user_unref(exec_ctx, p->client.resource_user);
     grpc_resource_user_unref(exec_ctx, p->server.resource_user);
     gpr_free(p);
@@ -170,7 +170,7 @@
                       const char *half_name) {
   m->base.vtable = &vtable;
   m->parent = parent;
-  gpr_slice_buffer_init(&m->read_buffer);
+  grpc_slice_buffer_init(&m->read_buffer);
   m->on_read = NULL;
   char *name;
   gpr_asprintf(&name, "passthru_endpoint_%s_%" PRIxPTR, half_name,
diff --git a/test/core/util/slice_splitter.c b/test/core/util/slice_splitter.c
index 95b55a6..177c989 100644
--- a/test/core/util/slice_splitter.c
+++ b/test/core/util/slice_splitter.c
@@ -50,8 +50,8 @@
   return "error";
 }
 
-void grpc_split_slices(grpc_slice_split_mode mode, gpr_slice *src_slices,
-                       size_t src_slice_count, gpr_slice **dst_slices,
+void grpc_split_slices(grpc_slice_split_mode mode, grpc_slice *src_slices,
+                       size_t src_slice_count, grpc_slice **dst_slices,
                        size_t *dst_slice_count) {
   size_t i, j;
   size_t length;
@@ -59,39 +59,39 @@
   switch (mode) {
     case GRPC_SLICE_SPLIT_IDENTITY:
       *dst_slice_count = src_slice_count;
-      *dst_slices = gpr_malloc(sizeof(gpr_slice) * src_slice_count);
+      *dst_slices = gpr_malloc(sizeof(grpc_slice) * src_slice_count);
       for (i = 0; i < src_slice_count; i++) {
         (*dst_slices)[i] = src_slices[i];
-        gpr_slice_ref((*dst_slices)[i]);
+        grpc_slice_ref((*dst_slices)[i]);
       }
       break;
     case GRPC_SLICE_SPLIT_MERGE_ALL:
       *dst_slice_count = 1;
       length = 0;
       for (i = 0; i < src_slice_count; i++) {
-        length += GPR_SLICE_LENGTH(src_slices[i]);
+        length += GRPC_SLICE_LENGTH(src_slices[i]);
       }
-      *dst_slices = gpr_malloc(sizeof(gpr_slice));
-      **dst_slices = gpr_slice_malloc(length);
+      *dst_slices = gpr_malloc(sizeof(grpc_slice));
+      **dst_slices = grpc_slice_malloc(length);
       length = 0;
       for (i = 0; i < src_slice_count; i++) {
-        memcpy(GPR_SLICE_START_PTR(**dst_slices) + length,
-               GPR_SLICE_START_PTR(src_slices[i]),
-               GPR_SLICE_LENGTH(src_slices[i]));
-        length += GPR_SLICE_LENGTH(src_slices[i]);
+        memcpy(GRPC_SLICE_START_PTR(**dst_slices) + length,
+               GRPC_SLICE_START_PTR(src_slices[i]),
+               GRPC_SLICE_LENGTH(src_slices[i]));
+        length += GRPC_SLICE_LENGTH(src_slices[i]);
       }
       break;
     case GRPC_SLICE_SPLIT_ONE_BYTE:
       length = 0;
       for (i = 0; i < src_slice_count; i++) {
-        length += GPR_SLICE_LENGTH(src_slices[i]);
+        length += GRPC_SLICE_LENGTH(src_slices[i]);
       }
       *dst_slice_count = length;
-      *dst_slices = gpr_malloc(sizeof(gpr_slice) * length);
+      *dst_slices = gpr_malloc(sizeof(grpc_slice) * length);
       length = 0;
       for (i = 0; i < src_slice_count; i++) {
-        for (j = 0; j < GPR_SLICE_LENGTH(src_slices[i]); j++) {
-          (*dst_slices)[length] = gpr_slice_sub(src_slices[i], j, j + 1);
+        for (j = 0; j < GRPC_SLICE_LENGTH(src_slices[i]); j++) {
+          (*dst_slices)[length] = grpc_slice_sub(src_slices[i], j, j + 1);
           length++;
         }
       }
@@ -100,39 +100,39 @@
 }
 
 void grpc_split_slices_to_buffer(grpc_slice_split_mode mode,
-                                 gpr_slice *src_slices, size_t src_slice_count,
-                                 gpr_slice_buffer *dst) {
-  gpr_slice *slices;
+                                 grpc_slice *src_slices, size_t src_slice_count,
+                                 grpc_slice_buffer *dst) {
+  grpc_slice *slices;
   size_t nslices;
   size_t i;
   grpc_split_slices(mode, src_slices, src_slice_count, &slices, &nslices);
   for (i = 0; i < nslices; i++) {
     /* add indexed to avoid re-merging split slices */
-    gpr_slice_buffer_add_indexed(dst, slices[i]);
+    grpc_slice_buffer_add_indexed(dst, slices[i]);
   }
   gpr_free(slices);
 }
 
-void grpc_split_slice_buffer(grpc_slice_split_mode mode, gpr_slice_buffer *src,
-                             gpr_slice_buffer *dst) {
+void grpc_split_slice_buffer(grpc_slice_split_mode mode, grpc_slice_buffer *src,
+                             grpc_slice_buffer *dst) {
   grpc_split_slices_to_buffer(mode, src->slices, src->count, dst);
 }
 
-gpr_slice grpc_slice_merge(gpr_slice *slices, size_t nslices) {
+grpc_slice grpc_slice_merge(grpc_slice *slices, size_t nslices) {
   uint8_t *out = NULL;
   size_t length = 0;
   size_t capacity = 0;
   size_t i;
 
   for (i = 0; i < nslices; i++) {
-    if (GPR_SLICE_LENGTH(slices[i]) + length > capacity) {
-      capacity = GPR_MAX(capacity * 2, GPR_SLICE_LENGTH(slices[i]) + length);
+    if (GRPC_SLICE_LENGTH(slices[i]) + length > capacity) {
+      capacity = GPR_MAX(capacity * 2, GRPC_SLICE_LENGTH(slices[i]) + length);
       out = gpr_realloc(out, capacity);
     }
-    memcpy(out + length, GPR_SLICE_START_PTR(slices[i]),
-           GPR_SLICE_LENGTH(slices[i]));
-    length += GPR_SLICE_LENGTH(slices[i]);
+    memcpy(out + length, GRPC_SLICE_START_PTR(slices[i]),
+           GRPC_SLICE_LENGTH(slices[i]));
+    length += GRPC_SLICE_LENGTH(slices[i]);
   }
 
-  return gpr_slice_new(out, length, gpr_free);
+  return grpc_slice_new(out, length, gpr_free);
 }
diff --git a/test/core/util/slice_splitter.h b/test/core/util/slice_splitter.h
index d030c2c..6162809 100644
--- a/test/core/util/slice_splitter.h
+++ b/test/core/util/slice_splitter.h
@@ -37,8 +37,8 @@
 /* utility function to split/merge slices together to help create test
    cases */
 
-#include <grpc/support/slice.h>
-#include <grpc/support/slice_buffer.h>
+#include <grpc/slice.h>
+#include <grpc/slice_buffer.h>
 
 typedef enum {
   /* merge all input slices into a single slice */
@@ -51,17 +51,17 @@
 
 /* allocates *dst_slices; caller must unref all slices in dst_slices then free
    it */
-void grpc_split_slices(grpc_slice_split_mode mode, gpr_slice *src_slices,
-                       size_t src_slice_count, gpr_slice **dst_slices,
+void grpc_split_slices(grpc_slice_split_mode mode, grpc_slice *src_slices,
+                       size_t src_slice_count, grpc_slice **dst_slices,
                        size_t *dst_slice_count);
 
 void grpc_split_slices_to_buffer(grpc_slice_split_mode mode,
-                                 gpr_slice *src_slices, size_t src_slice_count,
-                                 gpr_slice_buffer *dst);
-void grpc_split_slice_buffer(grpc_slice_split_mode mode, gpr_slice_buffer *src,
-                             gpr_slice_buffer *dst);
+                                 grpc_slice *src_slices, size_t src_slice_count,
+                                 grpc_slice_buffer *dst);
+void grpc_split_slice_buffer(grpc_slice_split_mode mode, grpc_slice_buffer *src,
+                             grpc_slice_buffer *dst);
 
-gpr_slice grpc_slice_merge(gpr_slice *slices, size_t nslices);
+grpc_slice grpc_slice_merge(grpc_slice *slices, size_t nslices);
 
 const char *grpc_slice_split_mode_name(grpc_slice_split_mode mode);
 
diff --git a/test/cpp/grpclb/grpclb_api_test.cc b/test/cpp/grpclb/grpclb_api_test.cc
index e67189c..191d729 100644
--- a/test/cpp/grpclb/grpclb_api_test.cc
+++ b/test/cpp/grpclb/grpclb_api_test.cc
@@ -71,12 +71,12 @@
   const grpc::string service_name = "AServiceName";
   LoadBalanceRequest request;
   grpc_grpclb_request* c_req = grpc_grpclb_request_create(service_name.c_str());
-  gpr_slice slice = grpc_grpclb_request_encode(c_req);
-  const int num_bytes_written = GPR_SLICE_LENGTH(slice);
+  grpc_slice slice = grpc_grpclb_request_encode(c_req);
+  const int num_bytes_written = GRPC_SLICE_LENGTH(slice);
   EXPECT_GT(num_bytes_written, 0);
-  request.ParseFromArray(GPR_SLICE_START_PTR(slice), num_bytes_written);
+  request.ParseFromArray(GRPC_SLICE_START_PTR(slice), num_bytes_written);
   EXPECT_EQ(request.initial_request().name(), service_name);
-  gpr_slice_unref(slice);
+  grpc_slice_unref(slice);
   grpc_grpclb_request_destroy(c_req);
 }
 
@@ -88,15 +88,15 @@
   client_stats_report_interval->set_seconds(123);
   client_stats_report_interval->set_nanos(456);
   const grpc::string encoded_response = response.SerializeAsString();
-  gpr_slice encoded_slice =
-      gpr_slice_from_copied_string(encoded_response.c_str());
+  grpc_slice encoded_slice =
+      grpc_slice_from_copied_string(encoded_response.c_str());
 
   grpc_grpclb_initial_response* c_initial_response =
       grpc_grpclb_initial_response_parse(encoded_slice);
   EXPECT_FALSE(c_initial_response->has_load_balancer_delegate);
   EXPECT_EQ(c_initial_response->client_stats_report_interval.seconds, 123);
   EXPECT_EQ(c_initial_response->client_stats_report_interval.nanos, 456);
-  gpr_slice_unref(encoded_slice);
+  grpc_slice_unref(encoded_slice);
   grpc_grpclb_initial_response_destroy(c_initial_response);
 }
 
@@ -116,7 +116,7 @@
   expiration_interval->set_nanos(999);
 
   const grpc::string encoded_response = response.SerializeAsString();
-  const gpr_slice encoded_slice = gpr_slice_from_copied_buffer(
+  const grpc_slice encoded_slice = grpc_slice_from_copied_buffer(
       encoded_response.data(), encoded_response.size());
   grpc_grpclb_serverlist* c_serverlist =
       grpc_grpclb_response_parse_serverlist(encoded_slice);
@@ -137,7 +137,7 @@
   EXPECT_TRUE(c_serverlist->expiration_interval.has_nanos);
   EXPECT_EQ(c_serverlist->expiration_interval.nanos, 999);
 
-  gpr_slice_unref(encoded_slice);
+  grpc_slice_unref(encoded_slice);
   grpc_grpclb_destroy_serverlist(c_serverlist);
 }
 
diff --git a/test/cpp/grpclb/grpclb_test.cc b/test/cpp/grpclb/grpclb_test.cc
index 70d50ec..1757863 100644
--- a/test/cpp/grpclb/grpclb_test.cc
+++ b/test/cpp/grpclb/grpclb_test.cc
@@ -121,7 +121,7 @@
 
 static void *tag(intptr_t t) { return (void *)t; }
 
-static gpr_slice build_response_payload_slice(
+static grpc_slice build_response_payload_slice(
     const char *host, int *ports, size_t nports,
     int64_t expiration_interval_secs, int32_t expiration_interval_nanos) {
   // server_list {
@@ -159,7 +159,7 @@
     server->set_load_balance_token(token_data);
   }
   const grpc::string &enc_resp = response.SerializeAsString();
-  return gpr_slice_from_copied_buffer(enc_resp.data(), enc_resp.size());
+  return grpc_slice_from_copied_buffer(enc_resp.data(), enc_resp.size());
 }
 
 static void drain_cq(grpc_completion_queue *cq) {
@@ -221,17 +221,17 @@
   // validate initial request.
   grpc_byte_buffer_reader bbr;
   grpc_byte_buffer_reader_init(&bbr, request_payload_recv);
-  gpr_slice request_payload_slice = grpc_byte_buffer_reader_readall(&bbr);
+  grpc_slice request_payload_slice = grpc_byte_buffer_reader_readall(&bbr);
   grpc::lb::v1::LoadBalanceRequest request;
-  request.ParseFromArray(GPR_SLICE_START_PTR(request_payload_slice),
-                         GPR_SLICE_LENGTH(request_payload_slice));
+  request.ParseFromArray(GRPC_SLICE_START_PTR(request_payload_slice),
+                         GRPC_SLICE_LENGTH(request_payload_slice));
   GPR_ASSERT(request.has_initial_request());
   GPR_ASSERT(request.initial_request().name() == sf->servers_hostport);
-  gpr_slice_unref(request_payload_slice);
+  grpc_slice_unref(request_payload_slice);
   grpc_byte_buffer_reader_destroy(&bbr);
   grpc_byte_buffer_destroy(request_payload_recv);
 
-  gpr_slice response_payload_slice;
+  grpc_slice response_payload_slice;
   op = ops;
   op->op = GRPC_OP_SEND_INITIAL_METADATA;
   op->data.send_initial_metadata.count = 0;
@@ -275,7 +275,7 @@
             sf->servers_hostport, i);
 
     grpc_byte_buffer_destroy(response_payload);
-    gpr_slice_unref(response_payload_slice);
+    grpc_slice_unref(response_payload_slice);
   }
   gpr_log(GPR_INFO, "LB Server[%s] shutting down", sf->servers_hostport);
 
@@ -365,7 +365,7 @@
     gpr_log(GPR_INFO, "Server[%s] after tag 101", sf->servers_hostport);
 
     bool exit = false;
-    gpr_slice response_payload_slice = gpr_slice_from_copied_string(PAYLOAD);
+    grpc_slice response_payload_slice = grpc_slice_from_copied_string(PAYLOAD);
     while (!exit) {
       op = ops;
       op->op = GRPC_OP_RECV_MESSAGE;
@@ -424,7 +424,7 @@
     ++sf->num_calls_serviced;
 
     gpr_log(GPR_INFO, "Server[%s] OUT OF THE LOOP", sf->servers_hostport);
-    gpr_slice_unref(response_payload_slice);
+    grpc_slice_unref(response_payload_slice);
 
     op = ops;
     op->op = GRPC_OP_SEND_STATUS_FROM_SERVER;
@@ -466,7 +466,8 @@
   int i;
 
   memset(ops, 0, sizeof(ops));
-  gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world");
+  grpc_slice request_payload_slice =
+      grpc_slice_from_copied_string("hello world");
 
   c = grpc_channel_create_call(cf->client, NULL, GRPC_PROPAGATE_DEFAULTS,
                                cf->cq, "/foo", "foo.test.google.fr:1234",
@@ -525,7 +526,7 @@
     grpc_byte_buffer_destroy(response_payload_recv);
   }
 
-  gpr_slice_unref(request_payload_slice);
+  grpc_slice_unref(request_payload_slice);
 
   op = ops;
   op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
diff --git a/test/cpp/qps/client.h b/test/cpp/qps/client.h
index a8d125a..3a0c359 100644
--- a/test/cpp/qps/client.h
+++ b/test/cpp/qps/client.h
@@ -103,7 +103,7 @@
     if (payload_config.has_bytebuf_params()) {
       std::unique_ptr<char[]> buf(
           new char[payload_config.bytebuf_params().req_size()]);
-      gpr_slice s = gpr_slice_from_copied_buffer(
+      grpc_slice s = grpc_slice_from_copied_buffer(
           buf.get(), payload_config.bytebuf_params().req_size());
       Slice slice(s, Slice::STEAL_REF);
       *req = ByteBuffer(&slice, 1);
diff --git a/test/cpp/qps/server_async.cc b/test/cpp/qps/server_async.cc
index f556fbd..b3a06ae 100644
--- a/test/cpp/qps/server_async.cc
+++ b/test/cpp/qps/server_async.cc
@@ -376,7 +376,7 @@
                                 ByteBuffer *response) {
   int resp_size = payload_config.bytebuf_params().resp_size();
   std::unique_ptr<char[]> buf(new char[resp_size]);
-  gpr_slice s = gpr_slice_from_copied_buffer(buf.get(), resp_size);
+  grpc_slice s = grpc_slice_from_copied_buffer(buf.get(), resp_size);
   Slice slice(s, Slice::STEAL_REF);
   *response = ByteBuffer(&slice, 1);
   return Status::OK;
diff --git a/test/cpp/util/byte_buffer_proto_helper.cc b/test/cpp/util/byte_buffer_proto_helper.cc
index d625d6f..ab5ca26 100644
--- a/test/cpp/util/byte_buffer_proto_helper.cc
+++ b/test/cpp/util/byte_buffer_proto_helper.cc
@@ -51,7 +51,7 @@
     grpc::protobuf::Message* message) {
   grpc::string buf;
   message->SerializeToString(&buf);
-  gpr_slice s = gpr_slice_from_copied_string(buf.c_str());
+  grpc_slice s = grpc_slice_from_copied_string(buf.c_str());
   Slice slice(s, Slice::STEAL_REF);
   return std::unique_ptr<ByteBuffer>(new ByteBuffer(&slice, 1));
 }
diff --git a/test/cpp/util/byte_buffer_test.cc b/test/cpp/util/byte_buffer_test.cc
index 2089a62..470ce0c 100644
--- a/test/cpp/util/byte_buffer_test.cc
+++ b/test/cpp/util/byte_buffer_test.cc
@@ -37,7 +37,7 @@
 #include <vector>
 
 #include <grpc++/support/slice.h>
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include <gtest/gtest.h>
 
 namespace grpc {
@@ -49,14 +49,14 @@
 class ByteBufferTest : public ::testing::Test {};
 
 TEST_F(ByteBufferTest, CreateFromSingleSlice) {
-  gpr_slice hello = gpr_slice_from_copied_string(kContent1);
+  grpc_slice hello = grpc_slice_from_copied_string(kContent1);
   Slice s(hello, Slice::STEAL_REF);
   ByteBuffer buffer(&s, 1);
 }
 
 TEST_F(ByteBufferTest, CreateFromVector) {
-  gpr_slice hello = gpr_slice_from_copied_string(kContent1);
-  gpr_slice world = gpr_slice_from_copied_string(kContent2);
+  grpc_slice hello = grpc_slice_from_copied_string(kContent1);
+  grpc_slice world = grpc_slice_from_copied_string(kContent2);
   std::vector<Slice> slices;
   slices.push_back(Slice(hello, Slice::STEAL_REF));
   slices.push_back(Slice(world, Slice::STEAL_REF));
@@ -64,15 +64,15 @@
 }
 
 TEST_F(ByteBufferTest, Clear) {
-  gpr_slice hello = gpr_slice_from_copied_string(kContent1);
+  grpc_slice hello = grpc_slice_from_copied_string(kContent1);
   Slice s(hello, Slice::STEAL_REF);
   ByteBuffer buffer(&s, 1);
   buffer.Clear();
 }
 
 TEST_F(ByteBufferTest, Length) {
-  gpr_slice hello = gpr_slice_from_copied_string(kContent1);
-  gpr_slice world = gpr_slice_from_copied_string(kContent2);
+  grpc_slice hello = grpc_slice_from_copied_string(kContent1);
+  grpc_slice world = grpc_slice_from_copied_string(kContent2);
   std::vector<Slice> slices;
   slices.push_back(Slice(hello, Slice::STEAL_REF));
   slices.push_back(Slice(world, Slice::STEAL_REF));
@@ -80,12 +80,12 @@
   EXPECT_EQ(strlen(kContent1) + strlen(kContent2), buffer.Length());
 }
 
-bool SliceEqual(const Slice& a, gpr_slice b) {
-  if (a.size() != GPR_SLICE_LENGTH(b)) {
+bool SliceEqual(const Slice& a, grpc_slice b) {
+  if (a.size() != GRPC_SLICE_LENGTH(b)) {
     return false;
   }
   for (size_t i = 0; i < a.size(); i++) {
-    if (a.begin()[i] != GPR_SLICE_START_PTR(b)[i]) {
+    if (a.begin()[i] != GRPC_SLICE_START_PTR(b)[i]) {
       return false;
     }
   }
@@ -93,8 +93,8 @@
 }
 
 TEST_F(ByteBufferTest, Dump) {
-  gpr_slice hello = gpr_slice_from_copied_string(kContent1);
-  gpr_slice world = gpr_slice_from_copied_string(kContent2);
+  grpc_slice hello = grpc_slice_from_copied_string(kContent1);
+  grpc_slice world = grpc_slice_from_copied_string(kContent2);
   std::vector<Slice> slices;
   slices.push_back(Slice(hello, Slice::STEAL_REF));
   slices.push_back(Slice(world, Slice::STEAL_REF));
@@ -106,8 +106,8 @@
 }
 
 TEST_F(ByteBufferTest, SerializationMakesCopy) {
-  gpr_slice hello = gpr_slice_from_copied_string(kContent1);
-  gpr_slice world = gpr_slice_from_copied_string(kContent2);
+  grpc_slice hello = grpc_slice_from_copied_string(kContent1);
+  grpc_slice world = grpc_slice_from_copied_string(kContent2);
   std::vector<Slice> slices;
   slices.push_back(Slice(hello, Slice::STEAL_REF));
   slices.push_back(Slice(world, Slice::STEAL_REF));
diff --git a/test/cpp/util/cli_call.cc b/test/cpp/util/cli_call.cc
index 1edffbe..a02a8b2 100644
--- a/test/cpp/util/cli_call.cc
+++ b/test/cpp/util/cli_call.cc
@@ -41,8 +41,8 @@
 #include <grpc++/generic/generic_stub.h>
 #include <grpc++/support/byte_buffer.h>
 #include <grpc/grpc.h>
+#include <grpc/slice.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice.h>
 
 namespace grpc {
 namespace testing {
@@ -72,7 +72,7 @@
   cq.Next(&got_tag, &ok);
   GPR_ASSERT(ok);
 
-  gpr_slice s = gpr_slice_from_copied_string(request.c_str());
+  grpc_slice s = grpc_slice_from_copied_string(request.c_str());
   grpc::Slice req_slice(s, grpc::Slice::STEAL_REF);
   grpc::ByteBuffer send_buffer(&req_slice, 1);
   call->Write(send_buffer, tag(2));
diff --git a/test/cpp/util/slice_test.cc b/test/cpp/util/slice_test.cc
index 45799ae..8926fb7 100644
--- a/test/cpp/util/slice_test.cc
+++ b/test/cpp/util/slice_test.cc
@@ -33,7 +33,7 @@
 
 #include <grpc++/support/slice.h>
 
-#include <grpc/support/slice.h>
+#include <grpc/slice.h>
 #include <gtest/gtest.h>
 
 namespace grpc {
@@ -51,15 +51,15 @@
 };
 
 TEST_F(SliceTest, Steal) {
-  gpr_slice s = gpr_slice_from_copied_string(kContent);
+  grpc_slice s = grpc_slice_from_copied_string(kContent);
   Slice spp(s, Slice::STEAL_REF);
   CheckSlice(spp, kContent);
 }
 
 TEST_F(SliceTest, Add) {
-  gpr_slice s = gpr_slice_from_copied_string(kContent);
+  grpc_slice s = grpc_slice_from_copied_string(kContent);
   Slice spp(s, Slice::ADD_REF);
-  gpr_slice_unref(s);
+  grpc_slice_unref(s);
   CheckSlice(spp, kContent);
 }
 
@@ -69,13 +69,13 @@
 }
 
 TEST_F(SliceTest, Cslice) {
-  gpr_slice s = gpr_slice_from_copied_string(kContent);
+  grpc_slice s = grpc_slice_from_copied_string(kContent);
   Slice spp(s, Slice::STEAL_REF);
   CheckSlice(spp, kContent);
-  gpr_slice c_slice = spp.c_slice();
-  EXPECT_EQ(GPR_SLICE_START_PTR(s), GPR_SLICE_START_PTR(c_slice));
-  EXPECT_EQ(GPR_SLICE_END_PTR(s), GPR_SLICE_END_PTR(c_slice));
-  gpr_slice_unref(c_slice);
+  grpc_slice c_slice = spp.c_slice();
+  EXPECT_EQ(GRPC_SLICE_START_PTR(s), GRPC_SLICE_START_PTR(c_slice));
+  EXPECT_EQ(GRPC_SLICE_END_PTR(s), GRPC_SLICE_END_PTR(c_slice));
+  grpc_slice_unref(c_slice);
 }
 
 }  // namespace
diff --git a/tools/codegen/core/gen_percent_encoding_tables.c b/tools/codegen/core/gen_percent_encoding_tables.c
index 93f30de..347c210 100644
--- a/tools/codegen/core/gen_percent_encoding_tables.c
+++ b/tools/codegen/core/gen_percent_encoding_tables.c
@@ -71,14 +71,14 @@
   legal('_');
   legal('.');
   legal('~');
-  dump("gpr_url_percent_encoding_unreserved_bytes");
+  dump("grpc_url_percent_encoding_unreserved_bytes");
 
   clear();
   for (i = 32; i <= 126; i++) {
     if (i == '%') continue;
     legal(i);
   }
-  dump("gpr_compatible_percent_encoding_unreserved_bytes");
+  dump("grpc_compatible_percent_encoding_unreserved_bytes");
 
   return 0;
 }
diff --git a/tools/doxygen/Doxyfile.core b/tools/doxygen/Doxyfile.core
index 003686c..2d7cac5 100644
--- a/tools/doxygen/Doxyfile.core
+++ b/tools/doxygen/Doxyfile.core
@@ -766,6 +766,8 @@
 include/grpc/grpc.h \
 include/grpc/grpc_posix.h \
 include/grpc/grpc_security_constants.h \
+include/grpc/slice.h \
+include/grpc/slice_buffer.h \
 include/grpc/status.h \
 include/grpc/impl/codegen/byte_buffer_reader.h \
 include/grpc/impl/codegen/compression_types.h \
@@ -799,8 +801,6 @@
 include/grpc/support/log.h \
 include/grpc/support/log_windows.h \
 include/grpc/support/port_platform.h \
-include/grpc/support/slice.h \
-include/grpc/support/slice_buffer.h \
 include/grpc/support/string_util.h \
 include/grpc/support/subprocess.h \
 include/grpc/support/sync.h \
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index 72452c7..dafe6e4 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -766,6 +766,8 @@
 include/grpc/grpc.h \
 include/grpc/grpc_posix.h \
 include/grpc/grpc_security_constants.h \
+include/grpc/slice.h \
+include/grpc/slice_buffer.h \
 include/grpc/status.h \
 include/grpc/impl/codegen/byte_buffer_reader.h \
 include/grpc/impl/codegen/compression_types.h \
@@ -859,6 +861,8 @@
 src/core/lib/json/json_common.h \
 src/core/lib/json/json_reader.h \
 src/core/lib/json/json_writer.h \
+src/core/lib/slice/percent_encoding.h \
+src/core/lib/slice/slice_string_helpers.h \
 src/core/lib/surface/api_trace.h \
 src/core/lib/surface/call.h \
 src/core/lib/surface/call_test_only.h \
@@ -1041,6 +1045,10 @@
 src/core/lib/json/json_reader.c \
 src/core/lib/json/json_string.c \
 src/core/lib/json/json_writer.c \
+src/core/lib/slice/percent_encoding.c \
+src/core/lib/slice/slice.c \
+src/core/lib/slice/slice_buffer.c \
+src/core/lib/slice/slice_string_helpers.c \
 src/core/lib/surface/alarm.c \
 src/core/lib/surface/api_trace.c \
 src/core/lib/surface/byte_buffer.c \
@@ -1183,8 +1191,6 @@
 include/grpc/support/log.h \
 include/grpc/support/log_windows.h \
 include/grpc/support/port_platform.h \
-include/grpc/support/slice.h \
-include/grpc/support/slice_buffer.h \
 include/grpc/support/string_util.h \
 include/grpc/support/subprocess.h \
 include/grpc/support/sync.h \
@@ -1215,7 +1221,6 @@
 src/core/lib/support/env.h \
 src/core/lib/support/mpscq.h \
 src/core/lib/support/murmur_hash.h \
-src/core/lib/support/percent_encoding.h \
 src/core/lib/support/stack_lockfree.h \
 src/core/lib/support/string.h \
 src/core/lib/support/string_windows.h \
@@ -1244,9 +1249,6 @@
 src/core/lib/support/log_windows.c \
 src/core/lib/support/mpscq.c \
 src/core/lib/support/murmur_hash.c \
-src/core/lib/support/percent_encoding.c \
-src/core/lib/support/slice.c \
-src/core/lib/support/slice_buffer.c \
 src/core/lib/support/stack_lockfree.c \
 src/core/lib/support/string.c \
 src/core/lib/support/string_posix.c \
diff --git a/tools/fuzzer/runners/percent_decode_fuzzer.sh b/tools/fuzzer/runners/percent_decode_fuzzer.sh
index 5a47fa2..d6abc18 100644
--- a/tools/fuzzer/runners/percent_decode_fuzzer.sh
+++ b/tools/fuzzer/runners/percent_decode_fuzzer.sh
@@ -42,4 +42,4 @@
   flags="-use_traces=1 $flags"
 fi
 
-bins/$config/percent_decode_fuzzer $flags fuzzer_output test/core/support/percent_decode_corpus
+bins/$config/percent_decode_fuzzer $flags fuzzer_output test/core/slice/percent_decode_corpus
diff --git a/tools/fuzzer/runners/percent_encode_fuzzer.sh b/tools/fuzzer/runners/percent_encode_fuzzer.sh
index 8136ef8..eea4d19 100644
--- a/tools/fuzzer/runners/percent_encode_fuzzer.sh
+++ b/tools/fuzzer/runners/percent_encode_fuzzer.sh
@@ -42,4 +42,4 @@
   flags="-use_traces=1 $flags"
 fi
 
-bins/$config/percent_encode_fuzzer $flags fuzzer_output test/core/support/percent_encode_corpus
+bins/$config/percent_encode_fuzzer $flags fuzzer_output test/core/slice/percent_encode_corpus
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 835d7be..c713a6f 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -739,51 +739,6 @@
     "headers": [], 
     "is_filegroup": false, 
     "language": "c", 
-    "name": "gpr_percent_encoding_test", 
-    "src": [
-      "test/core/support/percent_encoding_test.c"
-    ], 
-    "third_party": false, 
-    "type": "target"
-  }, 
-  {
-    "deps": [
-      "gpr", 
-      "gpr_test_util"
-    ], 
-    "headers": [], 
-    "is_filegroup": false, 
-    "language": "c", 
-    "name": "gpr_slice_buffer_test", 
-    "src": [
-      "test/core/support/slice_buffer_test.c"
-    ], 
-    "third_party": false, 
-    "type": "target"
-  }, 
-  {
-    "deps": [
-      "gpr", 
-      "gpr_test_util"
-    ], 
-    "headers": [], 
-    "is_filegroup": false, 
-    "language": "c", 
-    "name": "gpr_slice_test", 
-    "src": [
-      "test/core/support/slice_test.c"
-    ], 
-    "third_party": false, 
-    "type": "target"
-  }, 
-  {
-    "deps": [
-      "gpr", 
-      "gpr_test_util"
-    ], 
-    "headers": [], 
-    "is_filegroup": false, 
-    "language": "c", 
     "name": "gpr_stack_lockfree_test", 
     "src": [
       "test/core/support/stack_lockfree_test.c"
@@ -1682,7 +1637,7 @@
     "language": "c", 
     "name": "percent_decode_fuzzer", 
     "src": [
-      "test/core/support/percent_decode_fuzzer.c"
+      "test/core/slice/percent_decode_fuzzer.c"
     ], 
     "third_party": false, 
     "type": "target"
@@ -1699,7 +1654,24 @@
     "language": "c", 
     "name": "percent_encode_fuzzer", 
     "src": [
-      "test/core/support/percent_encode_fuzzer.c"
+      "test/core/slice/percent_encode_fuzzer.c"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "is_filegroup": false, 
+    "language": "c", 
+    "name": "percent_encoding_test", 
+    "src": [
+      "test/core/slice/percent_encoding_test.c"
     ], 
     "third_party": false, 
     "type": "target"
@@ -1868,6 +1840,57 @@
     "headers": [], 
     "is_filegroup": false, 
     "language": "c", 
+    "name": "slice_buffer_test", 
+    "src": [
+      "test/core/slice/slice_buffer_test.c"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "is_filegroup": false, 
+    "language": "c", 
+    "name": "slice_string_helpers_test", 
+    "src": [
+      "test/core/slice/slice_string_helpers_test.c"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "is_filegroup": false, 
+    "language": "c", 
+    "name": "slice_test", 
+    "src": [
+      "test/core/slice/slice_test.c"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "is_filegroup": false, 
+    "language": "c", 
     "name": "sockaddr_resolver_test", 
     "src": [
       "test/core/client_channel/resolvers/sockaddr_resolver_test.c"
@@ -4757,7 +4780,7 @@
     "language": "c", 
     "name": "percent_decode_fuzzer_one_entry", 
     "src": [
-      "test/core/support/percent_decode_fuzzer.c", 
+      "test/core/slice/percent_decode_fuzzer.c", 
       "test/core/util/one_corpus_entry_fuzzer.c"
     ], 
     "third_party": false, 
@@ -4775,7 +4798,7 @@
     "language": "c", 
     "name": "percent_encode_fuzzer_one_entry", 
     "src": [
-      "test/core/support/percent_encode_fuzzer.c", 
+      "test/core/slice/percent_encode_fuzzer.c", 
       "test/core/util/one_corpus_entry_fuzzer.c"
     ], 
     "third_party": false, 
@@ -6405,8 +6428,6 @@
       "include/grpc/support/log.h", 
       "include/grpc/support/log_windows.h", 
       "include/grpc/support/port_platform.h", 
-      "include/grpc/support/slice.h", 
-      "include/grpc/support/slice_buffer.h", 
       "include/grpc/support/string_util.h", 
       "include/grpc/support/subprocess.h", 
       "include/grpc/support/sync.h", 
@@ -6426,7 +6447,6 @@
       "src/core/lib/support/env.h", 
       "src/core/lib/support/mpscq.h", 
       "src/core/lib/support/murmur_hash.h", 
-      "src/core/lib/support/percent_encoding.h", 
       "src/core/lib/support/stack_lockfree.h", 
       "src/core/lib/support/string.h", 
       "src/core/lib/support/string_windows.h", 
@@ -6451,8 +6471,6 @@
       "include/grpc/support/log.h", 
       "include/grpc/support/log_windows.h", 
       "include/grpc/support/port_platform.h", 
-      "include/grpc/support/slice.h", 
-      "include/grpc/support/slice_buffer.h", 
       "include/grpc/support/string_util.h", 
       "include/grpc/support/subprocess.h", 
       "include/grpc/support/sync.h", 
@@ -6494,10 +6512,6 @@
       "src/core/lib/support/mpscq.h", 
       "src/core/lib/support/murmur_hash.c", 
       "src/core/lib/support/murmur_hash.h", 
-      "src/core/lib/support/percent_encoding.c", 
-      "src/core/lib/support/percent_encoding.h", 
-      "src/core/lib/support/slice.c", 
-      "src/core/lib/support/slice_buffer.c", 
       "src/core/lib/support/stack_lockfree.c", 
       "src/core/lib/support/stack_lockfree.h", 
       "src/core/lib/support/string.c", 
@@ -6576,6 +6590,8 @@
       "include/grpc/grpc.h", 
       "include/grpc/grpc_posix.h", 
       "include/grpc/grpc_security_constants.h", 
+      "include/grpc/slice.h", 
+      "include/grpc/slice_buffer.h", 
       "include/grpc/status.h", 
       "src/core/lib/channel/channel_args.h", 
       "src/core/lib/channel/channel_stack.h", 
@@ -6650,6 +6666,8 @@
       "src/core/lib/json/json_common.h", 
       "src/core/lib/json/json_reader.h", 
       "src/core/lib/json/json_writer.h", 
+      "src/core/lib/slice/percent_encoding.h", 
+      "src/core/lib/slice/slice_string_helpers.h", 
       "src/core/lib/surface/api_trace.h", 
       "src/core/lib/surface/call.h", 
       "src/core/lib/surface/call_test_only.h", 
@@ -6683,6 +6701,8 @@
       "include/grpc/grpc.h", 
       "include/grpc/grpc_posix.h", 
       "include/grpc/grpc_security_constants.h", 
+      "include/grpc/slice.h", 
+      "include/grpc/slice_buffer.h", 
       "include/grpc/status.h", 
       "src/core/lib/channel/channel_args.c", 
       "src/core/lib/channel/channel_args.h", 
@@ -6836,6 +6856,12 @@
       "src/core/lib/json/json_string.c", 
       "src/core/lib/json/json_writer.c", 
       "src/core/lib/json/json_writer.h", 
+      "src/core/lib/slice/percent_encoding.c", 
+      "src/core/lib/slice/percent_encoding.h", 
+      "src/core/lib/slice/slice.c", 
+      "src/core/lib/slice/slice_buffer.c", 
+      "src/core/lib/slice/slice_string_helpers.c", 
+      "src/core/lib/slice/slice_string_helpers.h", 
       "src/core/lib/surface/alarm.c", 
       "src/core/lib/surface/api_trace.c", 
       "src/core/lib/surface/api_trace.h", 
diff --git a/tools/run_tests/tests.json b/tools/run_tests/tests.json
index 49c6d38..91b1941 100644
--- a/tools/run_tests/tests.json
+++ b/tools/run_tests/tests.json
@@ -845,72 +845,6 @@
       "posix", 
       "windows"
     ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "exclude_iomgrs": [], 
-    "flaky": false, 
-    "gtest": false, 
-    "language": "c", 
-    "name": "gpr_percent_encoding_test", 
-    "platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ]
-  }, 
-  {
-    "args": [], 
-    "ci_platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "exclude_iomgrs": [], 
-    "flaky": false, 
-    "gtest": false, 
-    "language": "c", 
-    "name": "gpr_slice_buffer_test", 
-    "platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ]
-  }, 
-  {
-    "args": [], 
-    "ci_platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "exclude_iomgrs": [], 
-    "flaky": false, 
-    "gtest": false, 
-    "language": "c", 
-    "name": "gpr_slice_test", 
-    "platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ]
-  }, 
-  {
-    "args": [], 
-    "ci_platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ], 
     "cpu_cost": 7, 
     "exclude_configs": [], 
     "exclude_iomgrs": [], 
@@ -1751,6 +1685,28 @@
     ], 
     "cpu_cost": 1.0, 
     "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "gtest": false, 
+    "language": "c", 
+    "name": "percent_encoding_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ]
+  }, 
+  {
+    "args": [], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
     "exclude_iomgrs": [
       "uv"
     ], 
@@ -1939,6 +1895,72 @@
     "flaky": false, 
     "gtest": false, 
     "language": "c", 
+    "name": "slice_buffer_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ]
+  }, 
+  {
+    "args": [], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "gtest": false, 
+    "language": "c", 
+    "name": "slice_string_helpers_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ]
+  }, 
+  {
+    "args": [], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "gtest": false, 
+    "language": "c", 
+    "name": "slice_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ]
+  }, 
+  {
+    "args": [], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "gtest": false, 
+    "language": "c", 
     "name": "sockaddr_resolver_test", 
     "platforms": [
       "linux", 
@@ -101545,7 +101567,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/04cb8ccc553f9b2f5e52c421aff6d1c954d3dae6"
+      "test/core/slice/percent_decode_corpus/04cb8ccc553f9b2f5e52c421aff6d1c954d3dae6"
     ], 
     "ci_platforms": [
       "linux"
@@ -101567,7 +101589,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/0dd8f3a63745b3a2d39791559b5c1b311447b537"
+      "test/core/slice/percent_decode_corpus/0dd8f3a63745b3a2d39791559b5c1b311447b537"
     ], 
     "ci_platforms": [
       "linux"
@@ -101589,7 +101611,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/17eeaca784409adbe43365c32ac87915d736bba3"
+      "test/core/slice/percent_decode_corpus/17eeaca784409adbe43365c32ac87915d736bba3"
     ], 
     "ci_platforms": [
       "linux"
@@ -101611,7 +101633,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/2040c1ff65f52a7ae668c2c8f324de5dacc9d695"
+      "test/core/slice/percent_decode_corpus/2040c1ff65f52a7ae668c2c8f324de5dacc9d695"
     ], 
     "ci_platforms": [
       "linux"
@@ -101633,7 +101655,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/26b0d1da23027ae54db96e125e4a9e98842d77fb"
+      "test/core/slice/percent_decode_corpus/26b0d1da23027ae54db96e125e4a9e98842d77fb"
     ], 
     "ci_platforms": [
       "linux"
@@ -101655,7 +101677,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/2a089c0db45acdb4c6ed8e7ff81ca7235792c0b9"
+      "test/core/slice/percent_decode_corpus/2a089c0db45acdb4c6ed8e7ff81ca7235792c0b9"
     ], 
     "ci_platforms": [
       "linux"
@@ -101677,7 +101699,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/35b7b3bc3a740d5c3abca0d75b53f0e1e1ee998a"
+      "test/core/slice/percent_decode_corpus/35b7b3bc3a740d5c3abca0d75b53f0e1e1ee998a"
     ], 
     "ci_platforms": [
       "linux"
@@ -101699,7 +101721,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/36367ba1adba47a1cbc3a88707fde8cc7abdc248"
+      "test/core/slice/percent_decode_corpus/36367ba1adba47a1cbc3a88707fde8cc7abdc248"
     ], 
     "ci_platforms": [
       "linux"
@@ -101721,7 +101743,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/39c2ba51548a0beaf0d6d1164531f1447dc311b5"
+      "test/core/slice/percent_decode_corpus/39c2ba51548a0beaf0d6d1164531f1447dc311b5"
     ], 
     "ci_platforms": [
       "linux"
@@ -101743,7 +101765,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/56d08fea787c041395c6697ce26cfbc0decbe688"
+      "test/core/slice/percent_decode_corpus/56d08fea787c041395c6697ce26cfbc0decbe688"
     ], 
     "ci_platforms": [
       "linux"
@@ -101765,7 +101787,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/678d981fdabb9f0d6640235cf1719dd1e1e66ae9"
+      "test/core/slice/percent_decode_corpus/678d981fdabb9f0d6640235cf1719dd1e1e66ae9"
     ], 
     "ci_platforms": [
       "linux"
@@ -101787,7 +101809,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/68751961609ec010565de0aa87521dcbf0722c5d"
+      "test/core/slice/percent_decode_corpus/68751961609ec010565de0aa87521dcbf0722c5d"
     ], 
     "ci_platforms": [
       "linux"
@@ -101809,7 +101831,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/7875c06c6f03c9aa2f8e9c59f8d8957c8a32e759"
+      "test/core/slice/percent_decode_corpus/7875c06c6f03c9aa2f8e9c59f8d8957c8a32e759"
     ], 
     "ci_platforms": [
       "linux"
@@ -101831,7 +101853,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/7b302090e090a5829b6d1dd7be30bd4e36a7e60f"
+      "test/core/slice/percent_decode_corpus/7b302090e090a5829b6d1dd7be30bd4e36a7e60f"
     ], 
     "ci_platforms": [
       "linux"
@@ -101853,7 +101875,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/875e1022169c9e4c541a9ad894e69e989df22ba1"
+      "test/core/slice/percent_decode_corpus/875e1022169c9e4c541a9ad894e69e989df22ba1"
     ], 
     "ci_platforms": [
       "linux"
@@ -101875,7 +101897,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/8c1051ce066f5a26de9a9d133180621d0da957b4"
+      "test/core/slice/percent_decode_corpus/8c1051ce066f5a26de9a9d133180621d0da957b4"
     ], 
     "ci_platforms": [
       "linux"
@@ -101897,7 +101919,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/8e084e628ab83a18ac7ca7cb3506525263655c63"
+      "test/core/slice/percent_decode_corpus/8e084e628ab83a18ac7ca7cb3506525263655c63"
     ], 
     "ci_platforms": [
       "linux"
@@ -101919,7 +101941,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/9d316c4675f40ddccaf8f1cc7aea94170b1e4223"
+      "test/core/slice/percent_decode_corpus/9d316c4675f40ddccaf8f1cc7aea94170b1e4223"
     ], 
     "ci_platforms": [
       "linux"
@@ -101941,7 +101963,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/ad1c7c11d18a7d116e2c2ef4d4c5afb1270836ae"
+      "test/core/slice/percent_decode_corpus/ad1c7c11d18a7d116e2c2ef4d4c5afb1270836ae"
     ], 
     "ci_platforms": [
       "linux"
@@ -101963,7 +101985,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/b471f94aa4facf502e622e4a248f1ba4063ae681"
+      "test/core/slice/percent_decode_corpus/b471f94aa4facf502e622e4a248f1ba4063ae681"
     ], 
     "ci_platforms": [
       "linux"
@@ -101985,7 +102007,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/bf52ece030f16136d46e0dc97f58d60a0d8a1f0b"
+      "test/core/slice/percent_decode_corpus/bf52ece030f16136d46e0dc97f58d60a0d8a1f0b"
     ], 
     "ci_platforms": [
       "linux"
@@ -102007,7 +102029,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/d5b2a7177339ba2b7ce2f60e5f4459bef1e72758"
+      "test/core/slice/percent_decode_corpus/d5b2a7177339ba2b7ce2f60e5f4459bef1e72758"
     ], 
     "ci_platforms": [
       "linux"
@@ -102029,7 +102051,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/de867b64c54a7ed773dc611fc5cd2f17c5433113"
+      "test/core/slice/percent_decode_corpus/de867b64c54a7ed773dc611fc5cd2f17c5433113"
     ], 
     "ci_platforms": [
       "linux"
@@ -102051,7 +102073,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/e3948dbe004950591630dd5c52f4e0fcbd5e388a"
+      "test/core/slice/percent_decode_corpus/e3948dbe004950591630dd5c52f4e0fcbd5e388a"
     ], 
     "ci_platforms": [
       "linux"
@@ -102073,7 +102095,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/e7064f0b80f61dbc65915311032d27baa569ae2a"
+      "test/core/slice/percent_decode_corpus/e7064f0b80f61dbc65915311032d27baa569ae2a"
     ], 
     "ci_platforms": [
       "linux"
@@ -102095,7 +102117,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_decode_corpus/xyz"
+      "test/core/slice/percent_decode_corpus/xyz"
     ], 
     "ci_platforms": [
       "linux"
@@ -102117,7 +102139,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/0d3ee7fa54e6c66103965fd4409b044ba7db6c3f"
+      "test/core/slice/percent_encode_corpus/0d3ee7fa54e6c66103965fd4409b044ba7db6c3f"
     ], 
     "ci_platforms": [
       "linux"
@@ -102139,7 +102161,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/2e7ccf75e27b9501e3b28cf1c50ed0c45ab7c226"
+      "test/core/slice/percent_encode_corpus/2e7ccf75e27b9501e3b28cf1c50ed0c45ab7c226"
     ], 
     "ci_platforms": [
       "linux"
@@ -102161,7 +102183,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/55bb859f3942c462b03b7cbcf22ab4a0ac9705cf"
+      "test/core/slice/percent_encode_corpus/55bb859f3942c462b03b7cbcf22ab4a0ac9705cf"
     ], 
     "ci_platforms": [
       "linux"
@@ -102183,7 +102205,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/56070cecd54c845b6d4334953b17b712eb000d93"
+      "test/core/slice/percent_encode_corpus/56070cecd54c845b6d4334953b17b712eb000d93"
     ], 
     "ci_platforms": [
       "linux"
@@ -102205,7 +102227,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/61f50e891bf7ff5eb7a7af206f1e25d77f8756e7"
+      "test/core/slice/percent_encode_corpus/61f50e891bf7ff5eb7a7af206f1e25d77f8756e7"
     ], 
     "ci_platforms": [
       "linux"
@@ -102227,7 +102249,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/6e0c60cefc704c7940e475a87dd9ae423061cb5a"
+      "test/core/slice/percent_encode_corpus/6e0c60cefc704c7940e475a87dd9ae423061cb5a"
     ], 
     "ci_platforms": [
       "linux"
@@ -102249,7 +102271,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/7271ebcc6d22a0f186f7bc3c1973a7ed1bec8d8e"
+      "test/core/slice/percent_encode_corpus/7271ebcc6d22a0f186f7bc3c1973a7ed1bec8d8e"
     ], 
     "ci_platforms": [
       "linux"
@@ -102271,7 +102293,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/74c83ece3e2920a67593a9be9c82468f16cbb969"
+      "test/core/slice/percent_encode_corpus/74c83ece3e2920a67593a9be9c82468f16cbb969"
     ], 
     "ci_platforms": [
       "linux"
@@ -102293,7 +102315,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/98e004fd2a9f141a7a019720820080e12d637c06"
+      "test/core/slice/percent_encode_corpus/98e004fd2a9f141a7a019720820080e12d637c06"
     ], 
     "ci_platforms": [
       "linux"
@@ -102315,7 +102337,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/ba2c1e98227aa21ea3bb2ca4d0e504119717da8b"
+      "test/core/slice/percent_encode_corpus/ba2c1e98227aa21ea3bb2ca4d0e504119717da8b"
     ], 
     "ci_platforms": [
       "linux"
@@ -102337,7 +102359,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/c16b9fd45370d4afb5d3ebd307a6e263c25ffd45"
+      "test/core/slice/percent_encode_corpus/c16b9fd45370d4afb5d3ebd307a6e263c25ffd45"
     ], 
     "ci_platforms": [
       "linux"
@@ -102359,7 +102381,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/d58c3cd4eab9b6d2343abfa1c25c90a383fe0ec3"
+      "test/core/slice/percent_encode_corpus/d58c3cd4eab9b6d2343abfa1c25c90a383fe0ec3"
     ], 
     "ci_platforms": [
       "linux"
@@ -102381,7 +102403,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/e2619218ede30d2b7b8ecd601a9f0ae754b728b4"
+      "test/core/slice/percent_encode_corpus/e2619218ede30d2b7b8ecd601a9f0ae754b728b4"
     ], 
     "ci_platforms": [
       "linux"
@@ -102403,7 +102425,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/f93b3653e453f0e3eea3198001be6ce46e64bd21"
+      "test/core/slice/percent_encode_corpus/f93b3653e453f0e3eea3198001be6ce46e64bd21"
     ], 
     "ci_platforms": [
       "linux"
@@ -102425,7 +102447,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/fd41d029c7682ad3d1c40a9fd017a4c85b673a54"
+      "test/core/slice/percent_encode_corpus/fd41d029c7682ad3d1c40a9fd017a4c85b673a54"
     ], 
     "ci_platforms": [
       "linux"
@@ -102447,7 +102469,7 @@
   }, 
   {
     "args": [
-      "test/core/support/percent_encode_corpus/xyz"
+      "test/core/slice/percent_encode_corpus/xyz"
     ], 
     "ci_platforms": [
       "linux"
diff --git a/vsprojects/buildtests_c.sln b/vsprojects/buildtests_c.sln
index ad5c8f2..d08a47a 100644
--- a/vsprojects/buildtests_c.sln
+++ b/vsprojects/buildtests_c.sln
@@ -424,33 +424,6 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "gpr_percent_encoding_test", "vcxproj\test\gpr_percent_encoding_test\gpr_percent_encoding_test.vcxproj", "{8313AE17-FCFA-8110-95C7-7AF2F814D188}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "gpr_slice_buffer_test", "vcxproj\test\gpr_slice_buffer_test\gpr_slice_buffer_test.vcxproj", "{E679773D-DE89-AEBB-9787-59019989B825}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "gpr_slice_test", "vcxproj\test\gpr_slice_test\gpr_slice_test.vcxproj", "{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "gpr_stack_lockfree_test", "vcxproj\test\gpr_stack_lockfree_test\gpr_stack_lockfree_test.vcxproj", "{AD06B5CD-8D5C-A365-C46B-3CF32237A4F7}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -1282,6 +1255,17 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "percent_encoding_test", "vcxproj\test\percent_encoding_test\percent_encoding_test.vcxproj", "{CCFC6A58-623D-9013-BFEB-C809809E2429}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
+		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "resolve_address_test", "vcxproj\test\resolve_address_test\resolve_address_test.vcxproj", "{8279AF6C-9584-67F3-1547-B204864FCCA7}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -1395,6 +1379,39 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "slice_buffer_test", "vcxproj\test\slice_buffer_test\slice_buffer_test.vcxproj", "{F0FA4A41-5695-580A-DCDA-EC719CB041B0}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
+		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "slice_string_helpers_test", "vcxproj\test\slice_string_helpers_test\slice_string_helpers_test.vcxproj", "{419167BB-C3F5-DDEA-403A-394D1902DE65}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
+		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "slice_test", "vcxproj\test\slice_test\slice_test.vcxproj", "{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
+		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sockaddr_resolver_test", "vcxproj\test\sockaddr_resolver_test\sockaddr_resolver_test.vcxproj", "{9889A80C-F1D7-99C9-FE7E-657724BEDC62}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -2224,54 +2241,6 @@
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 		{B3D7760B-8BEA-2EF6-F1D4-9F9020E166D6}.Release-DLL|x64.Build.0 = Release|x64
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Debug|Win32.ActiveCfg = Debug|Win32
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Debug|x64.ActiveCfg = Debug|x64
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Release|Win32.ActiveCfg = Release|Win32
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Release|x64.ActiveCfg = Release|x64
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Debug|Win32.Build.0 = Debug|Win32
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Debug|x64.Build.0 = Debug|x64
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Release|Win32.Build.0 = Release|Win32
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Release|x64.Build.0 = Release|x64
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Debug-DLL|Win32.Build.0 = Debug|Win32
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Debug-DLL|x64.ActiveCfg = Debug|x64
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Debug-DLL|x64.Build.0 = Debug|x64
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Release-DLL|Win32.ActiveCfg = Release|Win32
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Release-DLL|Win32.Build.0 = Release|Win32
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Release-DLL|x64.ActiveCfg = Release|x64
-		{8313AE17-FCFA-8110-95C7-7AF2F814D188}.Release-DLL|x64.Build.0 = Release|x64
-		{E679773D-DE89-AEBB-9787-59019989B825}.Debug|Win32.ActiveCfg = Debug|Win32
-		{E679773D-DE89-AEBB-9787-59019989B825}.Debug|x64.ActiveCfg = Debug|x64
-		{E679773D-DE89-AEBB-9787-59019989B825}.Release|Win32.ActiveCfg = Release|Win32
-		{E679773D-DE89-AEBB-9787-59019989B825}.Release|x64.ActiveCfg = Release|x64
-		{E679773D-DE89-AEBB-9787-59019989B825}.Debug|Win32.Build.0 = Debug|Win32
-		{E679773D-DE89-AEBB-9787-59019989B825}.Debug|x64.Build.0 = Debug|x64
-		{E679773D-DE89-AEBB-9787-59019989B825}.Release|Win32.Build.0 = Release|Win32
-		{E679773D-DE89-AEBB-9787-59019989B825}.Release|x64.Build.0 = Release|x64
-		{E679773D-DE89-AEBB-9787-59019989B825}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
-		{E679773D-DE89-AEBB-9787-59019989B825}.Debug-DLL|Win32.Build.0 = Debug|Win32
-		{E679773D-DE89-AEBB-9787-59019989B825}.Debug-DLL|x64.ActiveCfg = Debug|x64
-		{E679773D-DE89-AEBB-9787-59019989B825}.Debug-DLL|x64.Build.0 = Debug|x64
-		{E679773D-DE89-AEBB-9787-59019989B825}.Release-DLL|Win32.ActiveCfg = Release|Win32
-		{E679773D-DE89-AEBB-9787-59019989B825}.Release-DLL|Win32.Build.0 = Release|Win32
-		{E679773D-DE89-AEBB-9787-59019989B825}.Release-DLL|x64.ActiveCfg = Release|x64
-		{E679773D-DE89-AEBB-9787-59019989B825}.Release-DLL|x64.Build.0 = Release|x64
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Debug|Win32.ActiveCfg = Debug|Win32
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Debug|x64.ActiveCfg = Debug|x64
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Release|Win32.ActiveCfg = Release|Win32
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Release|x64.ActiveCfg = Release|x64
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Debug|Win32.Build.0 = Debug|Win32
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Debug|x64.Build.0 = Debug|x64
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Release|Win32.Build.0 = Release|Win32
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Release|x64.Build.0 = Release|x64
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Debug-DLL|Win32.Build.0 = Debug|Win32
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Debug-DLL|x64.ActiveCfg = Debug|x64
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Debug-DLL|x64.Build.0 = Debug|x64
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Release-DLL|Win32.ActiveCfg = Release|Win32
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Release-DLL|Win32.Build.0 = Release|Win32
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Release-DLL|x64.ActiveCfg = Release|x64
-		{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}.Release-DLL|x64.Build.0 = Release|x64
 		{AD06B5CD-8D5C-A365-C46B-3CF32237A4F7}.Debug|Win32.ActiveCfg = Debug|Win32
 		{AD06B5CD-8D5C-A365-C46B-3CF32237A4F7}.Debug|x64.ActiveCfg = Debug|x64
 		{AD06B5CD-8D5C-A365-C46B-3CF32237A4F7}.Release|Win32.ActiveCfg = Release|Win32
@@ -3488,6 +3457,22 @@
 		{A66AC548-E2B9-74CD-293C-43526EE51DCE}.Release-DLL|Win32.Build.0 = Release|Win32
 		{A66AC548-E2B9-74CD-293C-43526EE51DCE}.Release-DLL|x64.ActiveCfg = Release|x64
 		{A66AC548-E2B9-74CD-293C-43526EE51DCE}.Release-DLL|x64.Build.0 = Release|x64
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Debug|Win32.ActiveCfg = Debug|Win32
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Debug|x64.ActiveCfg = Debug|x64
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Release|Win32.ActiveCfg = Release|Win32
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Release|x64.ActiveCfg = Release|x64
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Debug|Win32.Build.0 = Debug|Win32
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Debug|x64.Build.0 = Debug|x64
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Release|Win32.Build.0 = Release|Win32
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Release|x64.Build.0 = Release|x64
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Debug-DLL|x64.Build.0 = Debug|x64
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Release-DLL|Win32.Build.0 = Release|Win32
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Release-DLL|x64.ActiveCfg = Release|x64
+		{CCFC6A58-623D-9013-BFEB-C809809E2429}.Release-DLL|x64.Build.0 = Release|x64
 		{8279AF6C-9584-67F3-1547-B204864FCCA7}.Debug|Win32.ActiveCfg = Debug|Win32
 		{8279AF6C-9584-67F3-1547-B204864FCCA7}.Debug|x64.ActiveCfg = Debug|x64
 		{8279AF6C-9584-67F3-1547-B204864FCCA7}.Release|Win32.ActiveCfg = Release|Win32
@@ -3648,6 +3633,54 @@
 		{63422647-93FA-46BB-4827-95473D9D503C}.Release-DLL|Win32.Build.0 = Release|Win32
 		{63422647-93FA-46BB-4827-95473D9D503C}.Release-DLL|x64.ActiveCfg = Release|x64
 		{63422647-93FA-46BB-4827-95473D9D503C}.Release-DLL|x64.Build.0 = Release|x64
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Debug|Win32.ActiveCfg = Debug|Win32
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Debug|x64.ActiveCfg = Debug|x64
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Release|Win32.ActiveCfg = Release|Win32
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Release|x64.ActiveCfg = Release|x64
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Debug|Win32.Build.0 = Debug|Win32
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Debug|x64.Build.0 = Debug|x64
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Release|Win32.Build.0 = Release|Win32
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Release|x64.Build.0 = Release|x64
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Debug-DLL|x64.Build.0 = Debug|x64
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Release-DLL|Win32.Build.0 = Release|Win32
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Release-DLL|x64.ActiveCfg = Release|x64
+		{F0FA4A41-5695-580A-DCDA-EC719CB041B0}.Release-DLL|x64.Build.0 = Release|x64
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Debug|Win32.ActiveCfg = Debug|Win32
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Debug|x64.ActiveCfg = Debug|x64
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Release|Win32.ActiveCfg = Release|Win32
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Release|x64.ActiveCfg = Release|x64
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Debug|Win32.Build.0 = Debug|Win32
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Debug|x64.Build.0 = Debug|x64
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Release|Win32.Build.0 = Release|Win32
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Release|x64.Build.0 = Release|x64
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Debug-DLL|x64.Build.0 = Debug|x64
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Release-DLL|Win32.Build.0 = Release|Win32
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Release-DLL|x64.ActiveCfg = Release|x64
+		{419167BB-C3F5-DDEA-403A-394D1902DE65}.Release-DLL|x64.Build.0 = Release|x64
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Debug|Win32.ActiveCfg = Debug|Win32
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Debug|x64.ActiveCfg = Debug|x64
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Release|Win32.ActiveCfg = Release|Win32
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Release|x64.ActiveCfg = Release|x64
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Debug|Win32.Build.0 = Debug|Win32
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Debug|x64.Build.0 = Debug|x64
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Release|Win32.Build.0 = Release|Win32
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Release|x64.Build.0 = Release|x64
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Debug-DLL|x64.Build.0 = Debug|x64
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Release-DLL|Win32.Build.0 = Release|Win32
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Release-DLL|x64.ActiveCfg = Release|x64
+		{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}.Release-DLL|x64.Build.0 = Release|x64
 		{9889A80C-F1D7-99C9-FE7E-657724BEDC62}.Debug|Win32.ActiveCfg = Debug|Win32
 		{9889A80C-F1D7-99C9-FE7E-657724BEDC62}.Debug|x64.ActiveCfg = Debug|x64
 		{9889A80C-F1D7-99C9-FE7E-657724BEDC62}.Release|Win32.ActiveCfg = Release|Win32
diff --git a/vsprojects/vcxproj/gpr/gpr.vcxproj b/vsprojects/vcxproj/gpr/gpr.vcxproj
index 60772c7..ce59347 100644
--- a/vsprojects/vcxproj/gpr/gpr.vcxproj
+++ b/vsprojects/vcxproj/gpr/gpr.vcxproj
@@ -160,8 +160,6 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\log.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\log_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\port_platform.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\slice.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\slice_buffer.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\string_util.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\subprocess.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\sync.h" />
@@ -194,7 +192,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\env.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\mpscq.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\murmur_hash.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\percent_encoding.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\stack_lockfree.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string_windows.h" />
@@ -247,12 +244,6 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\murmur_hash.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\percent_encoding.c">
-    </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\slice.c">
-    </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\slice_buffer.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\stack_lockfree.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\string.c">
diff --git a/vsprojects/vcxproj/gpr/gpr.vcxproj.filters b/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
index f2db937..a50a9f4 100644
--- a/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
+++ b/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
@@ -67,15 +67,6 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\murmur_hash.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\percent_encoding.c">
-      <Filter>src\core\lib\support</Filter>
-    </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\slice.c">
-      <Filter>src\core\lib\support</Filter>
-    </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\slice_buffer.c">
-      <Filter>src\core\lib\support</Filter>
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\stack_lockfree.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
@@ -183,12 +174,6 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\port_platform.h">
       <Filter>include\grpc\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\slice.h">
-      <Filter>include\grpc\support</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\slice_buffer.h">
-      <Filter>include\grpc\support</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\string_util.h">
       <Filter>include\grpc\support</Filter>
     </ClInclude>
@@ -281,9 +266,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\murmur_hash.h">
       <Filter>src\core\lib\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\percent_encoding.h">
-      <Filter>src\core\lib\support</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\stack_lockfree.h">
       <Filter>src\core\lib\support</Filter>
     </ClInclude>
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index 1382466..c608cb8 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -273,6 +273,8 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_posix.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_security_constants.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\slice.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\slice_buffer.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\status.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\byte_buffer_reader.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\compression_types.h" />
@@ -368,6 +370,8 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\json\json_common.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\json\json_reader.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\json\json_writer.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\slice\percent_encoding.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\slice\slice_string_helpers.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\surface\api_trace.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\surface\call.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\surface\call_test_only.h" />
@@ -632,6 +636,14 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\json\json_writer.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\percent_encoding.c">
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice.c">
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice_buffer.c">
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice_string_helpers.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\alarm.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\api_trace.c">
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index c7b9b66..c6ca85c 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -241,6 +241,18 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\json\json_writer.c">
       <Filter>src\core\lib\json</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\percent_encoding.c">
+      <Filter>src\core\lib\slice</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice.c">
+      <Filter>src\core\lib\slice</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice_buffer.c">
+      <Filter>src\core\lib\slice</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice_string_helpers.c">
+      <Filter>src\core\lib\slice</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\alarm.c">
       <Filter>src\core\lib\surface</Filter>
     </ClCompile>
@@ -648,6 +660,12 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_security_constants.h">
       <Filter>include\grpc</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\slice.h">
+      <Filter>include\grpc</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\slice_buffer.h">
+      <Filter>include\grpc</Filter>
+    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\status.h">
       <Filter>include\grpc</Filter>
     </ClInclude>
@@ -929,6 +947,12 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\json\json_writer.h">
       <Filter>src\core\lib\json</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\slice\percent_encoding.h">
+      <Filter>src\core\lib\slice</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\slice\slice_string_helpers.h">
+      <Filter>src\core\lib\slice</Filter>
+    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\surface\api_trace.h">
       <Filter>src\core\lib\surface</Filter>
     </ClInclude>
@@ -1397,6 +1421,9 @@
     <Filter Include="src\core\lib\security\util">
       <UniqueIdentifier>{fcd7b397-aadd-556a-8aae-0cb7c893fbe0}</UniqueIdentifier>
     </Filter>
+    <Filter Include="src\core\lib\slice">
+      <UniqueIdentifier>{aed4de18-0b8a-0fed-6f5b-41ea3442310d}</UniqueIdentifier>
+    </Filter>
     <Filter Include="src\core\lib\surface">
       <UniqueIdentifier>{a21971fb-304f-da08-b1b2-7bd8df8ac373}</UniqueIdentifier>
     </Filter>
diff --git a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj
index 40ec6cc..764f461 100644
--- a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj
+++ b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj
@@ -153,6 +153,8 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_posix.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_security_constants.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\slice.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\slice_buffer.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\status.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\byte_buffer_reader.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\compression_types.h" />
@@ -261,6 +263,8 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\json\json_common.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\json\json_reader.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\json\json_writer.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\slice\percent_encoding.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\slice\slice_string_helpers.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\surface\api_trace.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\surface\call.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\surface\call_test_only.h" />
@@ -483,6 +487,14 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\json\json_writer.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\percent_encoding.c">
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice.c">
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice_buffer.c">
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice_string_helpers.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\alarm.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\api_trace.c">
diff --git a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters
index 3a97361..2b72043 100644
--- a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters
@@ -298,6 +298,18 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\json\json_writer.c">
       <Filter>src\core\lib\json</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\percent_encoding.c">
+      <Filter>src\core\lib\slice</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice.c">
+      <Filter>src\core\lib\slice</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice_buffer.c">
+      <Filter>src\core\lib\slice</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice_string_helpers.c">
+      <Filter>src\core\lib\slice</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\alarm.c">
       <Filter>src\core\lib\surface</Filter>
     </ClCompile>
@@ -405,6 +417,12 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_security_constants.h">
       <Filter>include\grpc</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\slice.h">
+      <Filter>include\grpc</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\slice_buffer.h">
+      <Filter>include\grpc</Filter>
+    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\status.h">
       <Filter>include\grpc</Filter>
     </ClInclude>
@@ -725,6 +743,12 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\json\json_writer.h">
       <Filter>src\core\lib\json</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\slice\percent_encoding.h">
+      <Filter>src\core\lib\slice</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\slice\slice_string_helpers.h">
+      <Filter>src\core\lib\slice</Filter>
+    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\surface\api_trace.h">
       <Filter>src\core\lib\surface</Filter>
     </ClInclude>
@@ -833,6 +857,9 @@
     <Filter Include="src\core\lib\json">
       <UniqueIdentifier>{89bc8f83-e29a-ddab-8f6b-22df11cdc867}</UniqueIdentifier>
     </Filter>
+    <Filter Include="src\core\lib\slice">
+      <UniqueIdentifier>{4d172bbc-20c4-6e7d-872a-2d287b589aa0}</UniqueIdentifier>
+    </Filter>
     <Filter Include="src\core\lib\surface">
       <UniqueIdentifier>{7f2b7dca-395f-94dd-c9ad-9a286bd9751e}</UniqueIdentifier>
     </Filter>
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
index 5573fc5..ed68f03 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
@@ -264,6 +264,8 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_posix.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_security_constants.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\slice.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\slice_buffer.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\status.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\byte_buffer_reader.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\compression_types.h" />
@@ -358,6 +360,8 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\json\json_common.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\json\json_reader.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\json\json_writer.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\slice\percent_encoding.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\slice\slice_string_helpers.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\surface\api_trace.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\surface\call.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\surface\call_test_only.h" />
@@ -600,6 +604,14 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\json\json_writer.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\percent_encoding.c">
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice.c">
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice_buffer.c">
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice_string_helpers.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\alarm.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\api_trace.c">
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
index 985abf7..e8c16e5 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
@@ -244,6 +244,18 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\json\json_writer.c">
       <Filter>src\core\lib\json</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\percent_encoding.c">
+      <Filter>src\core\lib\slice</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice.c">
+      <Filter>src\core\lib\slice</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice_buffer.c">
+      <Filter>src\core\lib\slice</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\slice\slice_string_helpers.c">
+      <Filter>src\core\lib\slice</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\alarm.c">
       <Filter>src\core\lib\surface</Filter>
     </ClCompile>
@@ -564,6 +576,12 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_security_constants.h">
       <Filter>include\grpc</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\slice.h">
+      <Filter>include\grpc</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\slice_buffer.h">
+      <Filter>include\grpc</Filter>
+    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\status.h">
       <Filter>include\grpc</Filter>
     </ClInclude>
@@ -842,6 +860,12 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\json\json_writer.h">
       <Filter>src\core\lib\json</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\slice\percent_encoding.h">
+      <Filter>src\core\lib\slice</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\slice\slice_string_helpers.h">
+      <Filter>src\core\lib\slice</Filter>
+    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\surface\api_trace.h">
       <Filter>src\core\lib\surface</Filter>
     </ClInclude>
@@ -1193,6 +1217,9 @@
     <Filter Include="src\core\lib\json">
       <UniqueIdentifier>{681cdaeb-c47f-8853-d985-bf13c2873947}</UniqueIdentifier>
     </Filter>
+    <Filter Include="src\core\lib\slice">
+      <UniqueIdentifier>{74c81ab7-e329-a362-3890-4c41b90f0511}</UniqueIdentifier>
+    </Filter>
     <Filter Include="src\core\lib\surface">
       <UniqueIdentifier>{506dc3b3-d884-2b59-0dfa-57ed6affa2d3}</UniqueIdentifier>
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diff --git a/vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj.filters b/vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj.filters
deleted file mode 100644
index e25b1ad..0000000
--- a/vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj.filters
+++ /dev/null
@@ -1,21 +0,0 @@
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-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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-  <ItemGroup>
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diff --git a/vsprojects/vcxproj/test/gpr_slice_buffer_test/gpr_slice_buffer_test.vcxproj b/vsprojects/vcxproj/test/gpr_slice_buffer_test/gpr_slice_buffer_test.vcxproj
deleted file mode 100644
index 33926ff..0000000
--- a/vsprojects/vcxproj/test/gpr_slice_buffer_test/gpr_slice_buffer_test.vcxproj
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@@ -1,193 +0,0 @@
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-      <Platform>Win32</Platform>
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-      <Platform>x64</Platform>
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-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
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-    <ProjectConfiguration Include="Release|x64">
-      <Configuration>Release</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
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-  <PropertyGroup Label="Globals">
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-    <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
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-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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-    <UseDebugLibraries>true</UseDebugLibraries>
-    <CharacterSet>Unicode</CharacterSet>
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-  <PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
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-    <Import Project="$(SolutionDir)\..\vsprojects\zlib.props" />
-  </ImportGroup>
-  <PropertyGroup Label="UserMacros" />
-  <PropertyGroup Condition="'$(Configuration)'=='Debug'">
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-    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
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-  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
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diff --git a/vsprojects/vcxproj/test/gpr_slice_buffer_test/gpr_slice_buffer_test.vcxproj.filters b/vsprojects/vcxproj/test/gpr_slice_buffer_test/gpr_slice_buffer_test.vcxproj.filters
deleted file mode 100644
index c41df89..0000000
--- a/vsprojects/vcxproj/test/gpr_slice_buffer_test/gpr_slice_buffer_test.vcxproj.filters
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup>
-    <ClCompile Include="$(SolutionDir)\..\test\core\support\slice_buffer_test.c">
-      <Filter>test\core\support</Filter>
-    </ClCompile>
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-
-  <ItemGroup>
-    <Filter Include="test">
-      <UniqueIdentifier>{b015cdf6-6916-d262-31a5-7a40ebdd3a54}</UniqueIdentifier>
-    </Filter>
-    <Filter Include="test\core">
-      <UniqueIdentifier>{9eaba135-13ef-103d-b5ed-7b338862ee45}</UniqueIdentifier>
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-    <Filter Include="test\core\support">
-      <UniqueIdentifier>{7ebad66c-189e-0e23-27fd-775aa5539d60}</UniqueIdentifier>
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diff --git a/vsprojects/vcxproj/test/gpr_slice_test/gpr_slice_test.vcxproj b/vsprojects/vcxproj/test/gpr_slice_test/gpr_slice_test.vcxproj
deleted file mode 100644
index bb2badc..0000000
--- a/vsprojects/vcxproj/test/gpr_slice_test/gpr_slice_test.vcxproj
+++ /dev/null
@@ -1,193 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\1.0.204.1.props')" />
-  <ItemGroup Label="ProjectConfigurations">
-    <ProjectConfiguration Include="Debug|Win32">
-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
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-      <Platform>x64</Platform>
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-    <ProjectConfiguration Include="Release|Win32">
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-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|x64">
-      <Configuration>Release</Configuration>
-      <Platform>x64</Platform>
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-  <PropertyGroup Label="Globals">
-    <ProjectGuid>{7F2D1623-AF04-DD98-BCE6-61ADB9A52366}</ProjectGuid>
-    <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
-    <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
-    <PlatformToolset>v100</PlatformToolset>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration">
-    <PlatformToolset>v110</PlatformToolset>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration">
-    <PlatformToolset>v120</PlatformToolset>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(VisualStudioVersion)' == '14.0'" Label="Configuration">
-    <PlatformToolset>v140</PlatformToolset>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseDebugLibraries>true</UseDebugLibraries>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseDebugLibraries>false</UseDebugLibraries>
-    <WholeProgramOptimization>true</WholeProgramOptimization>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
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-  <ImportGroup Label="ExtensionSettings">
-  </ImportGroup>
-  <ImportGroup Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="$(SolutionDir)\..\vsprojects\global.props" />
-    <Import Project="$(SolutionDir)\..\vsprojects\openssl.props" />
-    <Import Project="$(SolutionDir)\..\vsprojects\winsock.props" />
-    <Import Project="$(SolutionDir)\..\vsprojects\zlib.props" />
-  </ImportGroup>
-  <PropertyGroup Label="UserMacros" />
-  <PropertyGroup Condition="'$(Configuration)'=='Debug'">
-    <TargetName>gpr_slice_test</TargetName>
-    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
-    <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
-    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
-    <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)'=='Release'">
-    <TargetName>gpr_slice_test</TargetName>
-    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
-    <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
-    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
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-    <ClCompile>
-      <PrecompiledHeader>NotUsing</PrecompiledHeader>
-      <WarningLevel>Level3</WarningLevel>
-      <Optimization>Disabled</Optimization>
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-    </PropertyGroup>
-    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" />
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-    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" />
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diff --git a/vsprojects/vcxproj/test/gpr_slice_test/gpr_slice_test.vcxproj.filters b/vsprojects/vcxproj/test/gpr_slice_test/gpr_slice_test.vcxproj.filters
deleted file mode 100644
index 1e150f9..0000000
--- a/vsprojects/vcxproj/test/gpr_slice_test/gpr_slice_test.vcxproj.filters
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup>
-    <ClCompile Include="$(SolutionDir)\..\test\core\support\slice_test.c">
-      <Filter>test\core\support</Filter>
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-  <ItemGroup>
-    <Filter Include="test">
-      <UniqueIdentifier>{ac299488-eb50-af3d-a3cb-8db7c4997bc3}</UniqueIdentifier>
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-    <Filter Include="test\core">
-      <UniqueIdentifier>{962461d7-b980-51ed-090c-2426cfb05f33}</UniqueIdentifier>
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-    <Filter Include="test\core\support">
-      <UniqueIdentifier>{bc52b905-4fa4-f3f8-8a45-3b51fdb226dc}</UniqueIdentifier>
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diff --git a/vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj b/vsprojects/vcxproj/test/percent_encoding_test/percent_encoding_test.vcxproj
similarity index 94%
copy from vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj
copy to vsprojects/vcxproj/test/percent_encoding_test/percent_encoding_test.vcxproj
index 1a943e4..b858849 100644
--- a/vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj
+++ b/vsprojects/vcxproj/test/percent_encoding_test/percent_encoding_test.vcxproj
@@ -20,7 +20,7 @@
     </ProjectConfiguration>
   </ItemGroup>
   <PropertyGroup Label="Globals">
-    <ProjectGuid>{8313AE17-FCFA-8110-95C7-7AF2F814D188}</ProjectGuid>
+    <ProjectGuid>{CCFC6A58-623D-9013-BFEB-C809809E2429}</ProjectGuid>
     <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
     <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
   </PropertyGroup>
@@ -60,14 +60,14 @@
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup Condition="'$(Configuration)'=='Debug'">
-    <TargetName>gpr_percent_encoding_test</TargetName>
+    <TargetName>percent_encoding_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
     <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
     <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
-    <TargetName>gpr_percent_encoding_test</TargetName>
+    <TargetName>percent_encoding_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
     <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
@@ -158,10 +158,16 @@
   </ItemDefinitionGroup>
 
   <ItemGroup>
-    <ClCompile Include="$(SolutionDir)\..\test\core\support\percent_encoding_test.c">
+    <ClCompile Include="$(SolutionDir)\..\test\core\slice\percent_encoding_test.c">
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc_test_util\grpc_test_util.vcxproj">
+      <Project>{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc\grpc.vcxproj">
+      <Project>{29D16885-7228-4C31-81ED-5F9187C7F2A9}</Project>
+    </ProjectReference>
     <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr_test_util\gpr_test_util.vcxproj">
       <Project>{EAB0A629-17A9-44DB-B5FF-E91A721FE037}</Project>
     </ProjectReference>
diff --git a/vsprojects/vcxproj/test/percent_encoding_test/percent_encoding_test.vcxproj.filters b/vsprojects/vcxproj/test/percent_encoding_test/percent_encoding_test.vcxproj.filters
new file mode 100644
index 0000000..c782da7
--- /dev/null
+++ b/vsprojects/vcxproj/test/percent_encoding_test/percent_encoding_test.vcxproj.filters
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\slice\percent_encoding_test.c">
+      <Filter>test\core\slice</Filter>
+    </ClCompile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Filter Include="test">
+      <UniqueIdentifier>{cae06dad-e2f9-b0e5-9c5d-5458ef09f6f8}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core">
+      <UniqueIdentifier>{e20d1fc3-2955-f28e-ce2f-e5a96cb7b348}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core\slice">
+      <UniqueIdentifier>{429586ce-a996-f897-05f9-990e7c664eb1}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj b/vsprojects/vcxproj/test/slice_buffer_test/slice_buffer_test.vcxproj
similarity index 94%
rename from vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj
rename to vsprojects/vcxproj/test/slice_buffer_test/slice_buffer_test.vcxproj
index 1a943e4..ace1a3f 100644
--- a/vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj
+++ b/vsprojects/vcxproj/test/slice_buffer_test/slice_buffer_test.vcxproj
@@ -20,7 +20,7 @@
     </ProjectConfiguration>
   </ItemGroup>
   <PropertyGroup Label="Globals">
-    <ProjectGuid>{8313AE17-FCFA-8110-95C7-7AF2F814D188}</ProjectGuid>
+    <ProjectGuid>{F0FA4A41-5695-580A-DCDA-EC719CB041B0}</ProjectGuid>
     <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
     <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
   </PropertyGroup>
@@ -60,14 +60,14 @@
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup Condition="'$(Configuration)'=='Debug'">
-    <TargetName>gpr_percent_encoding_test</TargetName>
+    <TargetName>slice_buffer_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
     <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
     <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
-    <TargetName>gpr_percent_encoding_test</TargetName>
+    <TargetName>slice_buffer_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
     <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
@@ -158,10 +158,16 @@
   </ItemDefinitionGroup>
 
   <ItemGroup>
-    <ClCompile Include="$(SolutionDir)\..\test\core\support\percent_encoding_test.c">
+    <ClCompile Include="$(SolutionDir)\..\test\core\slice\slice_buffer_test.c">
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc_test_util\grpc_test_util.vcxproj">
+      <Project>{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc\grpc.vcxproj">
+      <Project>{29D16885-7228-4C31-81ED-5F9187C7F2A9}</Project>
+    </ProjectReference>
     <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr_test_util\gpr_test_util.vcxproj">
       <Project>{EAB0A629-17A9-44DB-B5FF-E91A721FE037}</Project>
     </ProjectReference>
diff --git a/vsprojects/vcxproj/test/slice_buffer_test/slice_buffer_test.vcxproj.filters b/vsprojects/vcxproj/test/slice_buffer_test/slice_buffer_test.vcxproj.filters
new file mode 100644
index 0000000..faf98f8
--- /dev/null
+++ b/vsprojects/vcxproj/test/slice_buffer_test/slice_buffer_test.vcxproj.filters
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\slice\slice_buffer_test.c">
+      <Filter>test\core\slice</Filter>
+    </ClCompile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Filter Include="test">
+      <UniqueIdentifier>{03de0a72-2873-4cc6-9a73-b7faed0f32fb}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core">
+      <UniqueIdentifier>{4a2e8cf6-61b1-6a4d-7f9d-298ef88b720d}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core\slice">
+      <UniqueIdentifier>{f486a4fe-0740-de07-63ea-00126063ee59}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj b/vsprojects/vcxproj/test/slice_string_helpers_test/slice_string_helpers_test.vcxproj
similarity index 94%
copy from vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj
copy to vsprojects/vcxproj/test/slice_string_helpers_test/slice_string_helpers_test.vcxproj
index 1a943e4..81a3cfc 100644
--- a/vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj
+++ b/vsprojects/vcxproj/test/slice_string_helpers_test/slice_string_helpers_test.vcxproj
@@ -20,7 +20,7 @@
     </ProjectConfiguration>
   </ItemGroup>
   <PropertyGroup Label="Globals">
-    <ProjectGuid>{8313AE17-FCFA-8110-95C7-7AF2F814D188}</ProjectGuid>
+    <ProjectGuid>{419167BB-C3F5-DDEA-403A-394D1902DE65}</ProjectGuid>
     <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
     <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
   </PropertyGroup>
@@ -60,14 +60,14 @@
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup Condition="'$(Configuration)'=='Debug'">
-    <TargetName>gpr_percent_encoding_test</TargetName>
+    <TargetName>slice_string_helpers_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
     <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
     <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
-    <TargetName>gpr_percent_encoding_test</TargetName>
+    <TargetName>slice_string_helpers_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
     <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
@@ -158,10 +158,16 @@
   </ItemDefinitionGroup>
 
   <ItemGroup>
-    <ClCompile Include="$(SolutionDir)\..\test\core\support\percent_encoding_test.c">
+    <ClCompile Include="$(SolutionDir)\..\test\core\slice\slice_string_helpers_test.c">
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc_test_util\grpc_test_util.vcxproj">
+      <Project>{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc\grpc.vcxproj">
+      <Project>{29D16885-7228-4C31-81ED-5F9187C7F2A9}</Project>
+    </ProjectReference>
     <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr_test_util\gpr_test_util.vcxproj">
       <Project>{EAB0A629-17A9-44DB-B5FF-E91A721FE037}</Project>
     </ProjectReference>
diff --git a/vsprojects/vcxproj/test/slice_string_helpers_test/slice_string_helpers_test.vcxproj.filters b/vsprojects/vcxproj/test/slice_string_helpers_test/slice_string_helpers_test.vcxproj.filters
new file mode 100644
index 0000000..0efa96e
--- /dev/null
+++ b/vsprojects/vcxproj/test/slice_string_helpers_test/slice_string_helpers_test.vcxproj.filters
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\slice\slice_string_helpers_test.c">
+      <Filter>test\core\slice</Filter>
+    </ClCompile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Filter Include="test">
+      <UniqueIdentifier>{28e4a72c-aa96-0c05-4846-5cf3fc783de6}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core">
+      <UniqueIdentifier>{2b4c98dc-c5e9-dbd2-65f2-cdb15beee76b}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core\slice">
+      <UniqueIdentifier>{c638007b-824d-9d7e-dd56-a732dadf7730}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj b/vsprojects/vcxproj/test/slice_test/slice_test.vcxproj
similarity index 94%
copy from vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj
copy to vsprojects/vcxproj/test/slice_test/slice_test.vcxproj
index 1a943e4..4cc8543 100644
--- a/vsprojects/vcxproj/test/gpr_percent_encoding_test/gpr_percent_encoding_test.vcxproj
+++ b/vsprojects/vcxproj/test/slice_test/slice_test.vcxproj
@@ -20,7 +20,7 @@
     </ProjectConfiguration>
   </ItemGroup>
   <PropertyGroup Label="Globals">
-    <ProjectGuid>{8313AE17-FCFA-8110-95C7-7AF2F814D188}</ProjectGuid>
+    <ProjectGuid>{D6DC2CF8-F263-49B1-DE13-D44D94BCF337}</ProjectGuid>
     <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
     <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
   </PropertyGroup>
@@ -60,14 +60,14 @@
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup Condition="'$(Configuration)'=='Debug'">
-    <TargetName>gpr_percent_encoding_test</TargetName>
+    <TargetName>slice_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
     <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
     <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
-    <TargetName>gpr_percent_encoding_test</TargetName>
+    <TargetName>slice_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
     <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
@@ -158,10 +158,16 @@
   </ItemDefinitionGroup>
 
   <ItemGroup>
-    <ClCompile Include="$(SolutionDir)\..\test\core\support\percent_encoding_test.c">
+    <ClCompile Include="$(SolutionDir)\..\test\core\slice\slice_test.c">
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc_test_util\grpc_test_util.vcxproj">
+      <Project>{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc\grpc.vcxproj">
+      <Project>{29D16885-7228-4C31-81ED-5F9187C7F2A9}</Project>
+    </ProjectReference>
     <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr_test_util\gpr_test_util.vcxproj">
       <Project>{EAB0A629-17A9-44DB-B5FF-E91A721FE037}</Project>
     </ProjectReference>
diff --git a/vsprojects/vcxproj/test/slice_test/slice_test.vcxproj.filters b/vsprojects/vcxproj/test/slice_test/slice_test.vcxproj.filters
new file mode 100644
index 0000000..1528a62
--- /dev/null
+++ b/vsprojects/vcxproj/test/slice_test/slice_test.vcxproj.filters
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\slice\slice_test.c">
+      <Filter>test\core\slice</Filter>
+    </ClCompile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Filter Include="test">
+      <UniqueIdentifier>{44997359-29c9-6a9f-598c-af6ad75b2b38}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core">
+      <UniqueIdentifier>{5b21ab34-9275-45b8-8dda-63b54fa77d69}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core\slice">
+      <UniqueIdentifier>{341de3f3-3ccb-deb9-0d33-8c6f6a36efc6}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
+