Remove Blink's ConvertableToTraceFormat

third_party/WebKit/Source/platform/EventTracer.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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 35 matching lines @@
 class TraceEventMemoryOverhead;
 }
 }
 
 // This will mark the trace event as disabled by default. The user will need
 // to explicitly enable the event.
 #define TRACE_DISABLED_BY_DEFAULT(name) "disabled-by-default-" name
 
 namespace blink {
 
+class TracedValue;
+
 namespace TraceEvent {
 typedef uint64_t TraceEventHandle;
 typedef intptr_t TraceEventAPIAtomicWord;
-
-class PLATFORM_EXPORT ConvertableToTraceFormat : public RefCounted<ConvertableToTraceFormat> {
-public:
-    virtual String asTraceFormat() const = 0;
-    virtual ~ConvertableToTraceFormat() { }
-    virtual void estimateTraceMemoryOverhead(base::trace_event::TraceEventMemoryOverhead*) { }
-};
-
 } // namespace TraceEvent
 
 // FIXME: Make these global variables thread-safe. Make a value update atomic.
 PLATFORM_EXPORT extern TraceEvent::TraceEventAPIAtomicWord* traceSamplingState[3];
 
 class PLATFORM_EXPORT EventTracer {
     STATIC_ONLY(EventTracer);
 public:
     static void initialize();
     static const unsigned char* getTraceCategoryEnabledFlag(const char*);
     static TraceEvent::TraceEventHandle addTraceEvent(char phase,
         const unsigned char* categoryEnabledFlag,
         const char* name,
         unsigned long long id,
         unsigned long long bindId,
         double timestamp,
         int numArgs,
         const char* argNames[],
         const unsigned char argTypes[],
         const unsigned long long argValues[],
-        PassRefPtr<TraceEvent::ConvertableToTraceFormat>,
-        PassRefPtr<TraceEvent::ConvertableToTraceFormat>,
+        PassRefPtr<TracedValue>,
+        PassRefPtr<TracedValue>,
         unsigned flags);
     static TraceEvent::TraceEventHandle addTraceEvent(char phase,
         const unsigned char* categoryEnabledFlag,
         const char* name,
         unsigned long long id,
         unsigned long long bindId,
         double timestamp,
         int numArgs,
         const char* argNames[],
         const unsigned char argTypes[],
@@ skipping 13 matching lines @@
         const char* argNames[],
         const unsigned char argTypes[],
         const unsigned long long argValues[],
         const scoped_refptr<base::trace_event::ConvertableToTraceFormat>* convertables,
         unsigned flags);
 };
 
 } // namespace blink
 
 #endif // EventTracer_h