Add a ConvertableToTraceFormat type to the trace framework.

webkit/glue/webkitplatformsupport_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "webkit/glue/webkitplatformsupport_impl.h"
 
 #include <math.h>
 
 #include <vector>
 
@@ skipping 461 matching lines @@
     const unsigned char* category_enabled,
     const char* name,
     unsigned long long id,
     int num_args,
     const char** arg_names,
     const unsigned char* arg_types,
     const unsigned long long* arg_values,
     unsigned char flags) {
   TRACE_EVENT_API_ADD_TRACE_EVENT(phase, category_enabled, name, id,
                                   num_args, arg_names, arg_types,
-                                  arg_values, flags);
+                                  arg_values, NULL, flags);
 }
 
 
 namespace {
 
 WebData loadAudioSpatializationResource(WebKitPlatformSupportImpl* platform,
                                         const char* name) {
 #ifdef IDR_AUDIO_SPATIALIZATION_T000_P000
   const size_t kExpectedSpatializationNameLength = 31;
   if (strlen(name) != kExpectedSpatializationNameLength) {
@@ skipping 463 matching lines @@
     return NULL;
   scoped_ptr<WebDiscardableMemoryImpl> discardable(
       new WebDiscardableMemoryImpl());
   if (discardable->InitializeAndLock(bytes))
     return discardable.release();
   return NULL;
 }
 
 
 }  // namespace webkit_glue