Emit CommitFrame and BeginFrame for impl-side frames

Source/platform/TraceEvent.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 586 matching lines @@
 // Notes regarding the following definitions:
 // New values can be added and propagated to third party libraries, but existing
 // definitions must never be changed, because third party libraries may use old
 // definitions.
 
 // Phase indicates the nature of an event entry. E.g. part of a begin/end pair.
 #define TRACE_EVENT_PHASE_BEGIN    ('B')
 #define TRACE_EVENT_PHASE_END      ('E')
 #define TRACE_EVENT_PHASE_COMPLETE ('X')
 #define TRACE_EVENT_PHASE_INSTANT  ('I')
+#define TRACE_EVENT_PHASE_INSTANT_WITH_SCOPE  ('i')

[pfeldman, 2013/11/06 17:07:21]

Please add FIXME that you'd like to migrate from I to i.

 #define TRACE_EVENT_PHASE_ASYNC_BEGIN ('S')
 #define TRACE_EVENT_PHASE_ASYNC_STEP  ('T')
 #define TRACE_EVENT_PHASE_ASYNC_END   ('F')
 #define TRACE_EVENT_PHASE_METADATA ('M')
 #define TRACE_EVENT_PHASE_COUNTER  ('C')
 #define TRACE_EVENT_PHASE_SAMPLE  ('P')
 #define TRACE_EVENT_PHASE_CREATE_OBJECT ('N')
 #define TRACE_EVENT_PHASE_DELETE_OBJECT ('D')
 
 // Flags for changing the behavior of TRACE_EVENT_API_ADD_TRACE_EVENT.
@@ skipping 284 matching lines @@
     const char* m_categoryGroup;
     const char* m_name;
     IDType m_id;
 };
 
 } // namespace TraceEvent
 
 } // namespace WebCore
 
 #endif