Added batch GRPC_TRACE option to trace calls to grpc_call_start_batch
diff --git a/Makefile b/Makefile
index 8c6fc32..242ce79 100644
--- a/Makefile
+++ b/Makefile
@@ -2436,6 +2436,7 @@
     src/core/surface/byte_buffer_reader.c \
     src/core/surface/call.c \
     src/core/surface/call_details.c \
+    src/core/surface/call_log_batch.c \
     src/core/surface/channel.c \
     src/core/surface/channel_create.c \
     src/core/surface/client.c \
@@ -2581,6 +2582,7 @@
 src/core/surface/byte_buffer_reader.c: $(OPENSSL_DEP)
 src/core/surface/call.c: $(OPENSSL_DEP)
 src/core/surface/call_details.c: $(OPENSSL_DEP)
+src/core/surface/call_log_batch.c: $(OPENSSL_DEP)
 src/core/surface/channel.c: $(OPENSSL_DEP)
 src/core/surface/channel_create.c: $(OPENSSL_DEP)
 src/core/surface/client.c: $(OPENSSL_DEP)
@@ -2743,6 +2745,7 @@
 $(OBJDIR)/$(CONFIG)/src/core/surface/byte_buffer_reader.o: 
 $(OBJDIR)/$(CONFIG)/src/core/surface/call.o: 
 $(OBJDIR)/$(CONFIG)/src/core/surface/call_details.o: 
+$(OBJDIR)/$(CONFIG)/src/core/surface/call_log_batch.o: 
 $(OBJDIR)/$(CONFIG)/src/core/surface/channel.o: 
 $(OBJDIR)/$(CONFIG)/src/core/surface/channel_create.o: 
 $(OBJDIR)/$(CONFIG)/src/core/surface/client.o: 
@@ -2918,6 +2921,7 @@
     src/core/surface/byte_buffer_reader.c \
     src/core/surface/call.c \
     src/core/surface/call_details.c \
+    src/core/surface/call_log_batch.c \
     src/core/surface/channel.c \
     src/core/surface/channel_create.c \
     src/core/surface/client.c \
@@ -3056,6 +3060,7 @@
 $(OBJDIR)/$(CONFIG)/src/core/surface/byte_buffer_reader.o: 
 $(OBJDIR)/$(CONFIG)/src/core/surface/call.o: 
 $(OBJDIR)/$(CONFIG)/src/core/surface/call_details.o: 
+$(OBJDIR)/$(CONFIG)/src/core/surface/call_log_batch.o: 
 $(OBJDIR)/$(CONFIG)/src/core/surface/channel.o: 
 $(OBJDIR)/$(CONFIG)/src/core/surface/channel_create.o: 
 $(OBJDIR)/$(CONFIG)/src/core/surface/client.o: