NOCOMMIT: Blink tracing now uses base

content/child/blink_platform_impl.h

Index: content/child/blink_platform_impl.h
diff --git a/content/child/blink_platform_impl.h b/content/child/blink_platform_impl.h
index 4ec165945e44cd1b3561898702a409248ae00b22..49f22fb0c2abdf0df551822a746f62eb1260f39b 100644
--- a/content/child/blink_platform_impl.h
+++ b/content/child/blink_platform_impl.h
@@ -116,34 +116,6 @@ class CONTENT_EXPORT BlinkPlatformImpl
       const char* category_name) override;
   TraceEventAPIAtomicWord* getTraceSamplingState(
       const unsigned thread_bucket) override;
-  virtual TraceEventHandle addTraceEvent(
-      char phase,
-      const unsigned char* category_group_enabled,
-      const char* name,
-      unsigned long long id,
-      unsigned long long bind_id,
-      double timestamp,
-      int num_args,
-      const char** arg_names,
-      const unsigned char* arg_types,
-      const unsigned long long* arg_values,
-      blink::WebConvertableToTraceFormat* convertable_values,
-      unsigned int flags);
-  virtual TraceEventHandle addTraceEvent(
-      char phase,
-      const unsigned char* category_group_enabled,
-      const char* name,
-      unsigned long long id,
-      double timestamp,
-      int num_args,
-      const char** arg_names,
-      const unsigned char* arg_types,
-      const unsigned long long* arg_values,
-      blink::WebConvertableToTraceFormat* convertable_values,
-      unsigned char flags);
-  void updateTraceEventDuration(const unsigned char* category_group_enabled,
-                                const char* name,
-                                TraceEventHandle) override;
   void registerMemoryDumpProvider(blink::WebMemoryDumpProvider* wmdp) override;
   void unregisterMemoryDumpProvider(
       blink::WebMemoryDumpProvider* wmdp) override;