Rename Chunk to Slice to avoid ambiguity

Non functional refactor. The term "Chunk" ended up being overloaded:
1) Chunk as fraction of a page in the SharedMemoryABI
2) Chunk as a virtually contiguous fraction of a packet

Renaming 2 to Slice

Change-Id: I2d283748e566839c4adcdb987282a811c06ed226
diff --git a/Android.bp b/Android.bp
index 0f910c6..84c80ea 100644
--- a/Android.bp
+++ b/Android.bp
@@ -54,7 +54,6 @@
     "src/traced/probes/probes.cc",
     "src/traced/probes/probes_producer.cc",
     "src/traced/service/service.cc",
-    "src/tracing/core/chunked_protobuf_input_stream.cc",
     "src/tracing/core/data_source_config.cc",
     "src/tracing/core/data_source_descriptor.cc",
     "src/tracing/core/id_allocator.cc",
@@ -62,6 +61,7 @@
     "src/tracing/core/service_impl.cc",
     "src/tracing/core/shared_memory_abi.cc",
     "src/tracing/core/shared_memory_arbiter_impl.cc",
+    "src/tracing/core/sliced_protobuf_input_stream.cc",
     "src/tracing/core/trace_config.cc",
     "src/tracing/core/trace_packet.cc",
     "src/tracing/core/trace_writer_impl.cc",
@@ -124,7 +124,6 @@
     "src/protozero/scattered_stream_writer.cc",
     "src/traced/perfetto_cmd/main.cc",
     "src/traced/perfetto_cmd/perfetto_cmd.cc",
-    "src/tracing/core/chunked_protobuf_input_stream.cc",
     "src/tracing/core/data_source_config.cc",
     "src/tracing/core/data_source_descriptor.cc",
     "src/tracing/core/id_allocator.cc",
@@ -132,6 +131,7 @@
     "src/tracing/core/service_impl.cc",
     "src/tracing/core/shared_memory_abi.cc",
     "src/tracing/core/shared_memory_arbiter_impl.cc",
+    "src/tracing/core/sliced_protobuf_input_stream.cc",
     "src/tracing/core/trace_config.cc",
     "src/tracing/core/trace_packet.cc",
     "src/tracing/core/trace_writer_impl.cc",
@@ -236,7 +236,6 @@
     "src/protozero/proto_utils.cc",
     "src/protozero/scattered_stream_writer.cc",
     "src/traced/probes/probes_producer.cc",
-    "src/tracing/core/chunked_protobuf_input_stream.cc",
     "src/tracing/core/data_source_config.cc",
     "src/tracing/core/data_source_descriptor.cc",
     "src/tracing/core/id_allocator.cc",
@@ -244,6 +243,7 @@
     "src/tracing/core/service_impl.cc",
     "src/tracing/core/shared_memory_abi.cc",
     "src/tracing/core/shared_memory_arbiter_impl.cc",
+    "src/tracing/core/sliced_protobuf_input_stream.cc",
     "src/tracing/core/trace_config.cc",
     "src/tracing/core/trace_packet.cc",
     "src/tracing/core/trace_writer_impl.cc",
@@ -1819,7 +1819,6 @@
     "src/protozero/message_handle.cc",
     "src/protozero/proto_utils.cc",
     "src/protozero/scattered_stream_writer.cc",
-    "src/tracing/core/chunked_protobuf_input_stream.cc",
     "src/tracing/core/data_source_config.cc",
     "src/tracing/core/data_source_descriptor.cc",
     "src/tracing/core/id_allocator.cc",
@@ -1827,6 +1826,7 @@
     "src/tracing/core/service_impl.cc",
     "src/tracing/core/shared_memory_abi.cc",
     "src/tracing/core/shared_memory_arbiter_impl.cc",
+    "src/tracing/core/sliced_protobuf_input_stream.cc",
     "src/tracing/core/trace_config.cc",
     "src/tracing/core/trace_packet.cc",
     "src/tracing/core/trace_writer_impl.cc",
@@ -1949,8 +1949,6 @@
     "src/protozero/scattered_stream_writer_unittest.cc",
     "src/protozero/test/fake_scattered_buffer.cc",
     "src/protozero/test/protozero_conformance_unittest.cc",
-    "src/tracing/core/chunked_protobuf_input_stream.cc",
-    "src/tracing/core/chunked_protobuf_input_stream_unittest.cc",
     "src/tracing/core/data_source_config.cc",
     "src/tracing/core/data_source_descriptor.cc",
     "src/tracing/core/id_allocator.cc",
@@ -1963,6 +1961,8 @@
     "src/tracing/core/shared_memory_abi_unittest.cc",
     "src/tracing/core/shared_memory_arbiter_impl.cc",
     "src/tracing/core/shared_memory_arbiter_impl_unittest.cc",
+    "src/tracing/core/sliced_protobuf_input_stream.cc",
+    "src/tracing/core/sliced_protobuf_input_stream_unittest.cc",
     "src/tracing/core/trace_config.cc",
     "src/tracing/core/trace_packet.cc",
     "src/tracing/core/trace_packet_unittest.cc",