Independently enable recording and event callback

webkit/child/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/child/webkitplatformsupport_impl.h"
 
 #include <math.h>
 
 #include <vector>
 
@@ skipping 472 matching lines @@
     const unsigned long long* arg_values,
     unsigned char flags) {
   base::debug::TraceEventHandle handle = TRACE_EVENT_API_ADD_TRACE_EVENT(
       phase, category_group_enabled, name, id,
       num_args, arg_names, arg_types, arg_values, NULL, flags);
   blink::Platform::TraceEventHandle result;
   memcpy(&result, &handle, sizeof(result));
   return result;
 }
 
+// TODO(wangxianzhu): Remove this.
 void WebKitPlatformSupportImpl::updateTraceEventDuration(
     TraceEventHandle handle) {
+  updateTraceEventDuration(NULL, NULL, handle);
+}
+
+void WebKitPlatformSupportImpl::updateTraceEventDuration(
+    const unsigned char* category_group_enabled,
+    const char* name,
+    TraceEventHandle handle) {
   base::debug::TraceEventHandle traceEventHandle;
   memcpy(&traceEventHandle, &handle, sizeof(handle));
-  TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(traceEventHandle);
+  TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(
+      category_group_enabled, name, traceEventHandle);
 }
 
 namespace {
 
 WebData loadAudioSpatializationResource(WebKitPlatformSupportImpl* platform,
                                         const char* name) {
 #ifdef IDR_AUDIO_SPATIALIZATION_COMPOSITE
   if (!strcmp(name, "Composite")) {
     base::StringPiece resource =
         platform->GetDataResource(IDR_AUDIO_SPATIALIZATION_COMPOSITE,
@@ skipping 420 matching lines @@
   if (--shared_timer_suspended_ == 0 &&
       (!shared_timer_.IsRunning() ||
        shared_timer_fire_time_was_set_while_suspended_)) {
     shared_timer_fire_time_was_set_while_suspended_ = false;
     setSharedTimerFireInterval(
         shared_timer_fire_time_ - monotonicallyIncreasingTime());
   }
 }
 
 }  // namespace webkit_glue