Provides a second version of addTraceEvent that accepts a timestamp. This is in preparation for the…

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 46f39c426beb94015f20989bf26953e64febb094..d14c49c5651c28ecdd90deb3875e337bafc2ed1d 100644
--- a/content/child/blink_platform_impl.h
+++ b/content/child/blink_platform_impl.h
@@ -99,6 +99,33 @@ class CONTENT_EXPORT BlinkPlatformImpl
   virtual const unsigned char* getTraceCategoryEnabledFlag(
       const char* category_name);
   virtual long* getTraceSamplingState(const unsigned thread_bucket);
+

[jam, 2015/01/28 23:31:09]

nit: remove. when we implement an interface, we add the methods without spaces
in between

[charliea_google.com, 2015/01/28 23:34:36]

Done.

+  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,
+      unsigned char 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,
+      const blink::WebConvertableToTraceFormat* convertable_values,
+      unsigned char flags);
+
+  // TODO(charliea): Remove the addTraceEvent methods without timestamps
+  // once Blink uses the new signature with timestamps
   virtual TraceEventHandle addTraceEvent(
       char phase,
       const unsigned char* category_group_enabled,
@@ -120,6 +147,7 @@ class CONTENT_EXPORT BlinkPlatformImpl
       const unsigned long long* arg_values,
       const blink::WebConvertableToTraceFormat* convertable_values,
       unsigned char flags);
+

[jam, 2015/01/28 23:31:09]

ditto

[charliea_google.com, 2015/01/28 23:34:36]

Done.

   virtual void updateTraceEventDuration(
       const unsigned char* category_group_enabled,
       const char* name,