Move a file from src/cpp to src/core since core depends on it
diff --git a/config.m4 b/config.m4
index a46b076..7825274 100644
--- a/config.m4
+++ b/config.m4
@@ -389,7 +389,7 @@
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_windows.cc \
src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.cc \
src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.cc \
- src/cpp/ext/filters/census/grpc_context.cc \
+ src/core/ext/filters/census/grpc_context.cc \
src/core/ext/filters/max_age/max_age_filter.cc \
src/core/ext/filters/message_size/message_size_filter.cc \
src/core/ext/filters/http/client_authority_filter.cc \
@@ -660,6 +660,7 @@
PHP_ADD_BUILD_DIR($ext_builddir/src/php/ext/grpc)
PHP_ADD_BUILD_DIR($ext_builddir/src/boringssl)
+ PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/census)
PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel)
PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/lb_policy/grpclb)
PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1)
@@ -723,7 +724,6 @@
PHP_ADD_BUILD_DIR($ext_builddir/src/core/tsi/alts/handshaker)
PHP_ADD_BUILD_DIR($ext_builddir/src/core/tsi/alts/zero_copy_frame_protector)
PHP_ADD_BUILD_DIR($ext_builddir/src/core/tsi/ssl/session_cache)
- PHP_ADD_BUILD_DIR($ext_builddir/src/cpp/ext/filters/census)
PHP_ADD_BUILD_DIR($ext_builddir/third_party/address_sorting)
PHP_ADD_BUILD_DIR($ext_builddir/third_party/boringssl/crypto)
PHP_ADD_BUILD_DIR($ext_builddir/third_party/boringssl/crypto/asn1)