Trace where timers were scheduled in Blink

Source/modules/speech/testing/PlatformSpeechSynthesizerMock.cpp

 /*
  * Copyright (C) 2013 Apple Computer, 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 67 matching lines @@
 {
     ASSERT(!m_utterance);
     m_utterance = utterance;
     client()->didStartSpeaking(m_utterance);
 
     // Fire a fake word and then sentence boundary event.
     client()->boundaryEventOccurred(m_utterance, SpeechWordBoundary, 0);
     client()->boundaryEventOccurred(m_utterance, SpeechSentenceBoundary, m_utterance->text().length());
 
     // Give the fake speech job some time so that pause and other functions have time to be called.
-    m_speakingFinishedTimer.startOneShot(.1);
+    m_speakingFinishedTimer.startOneShot(.1, FROM_HERE);
 }
 
 void PlatformSpeechSynthesizerMock::cancel()
 {
     if (!m_utterance)
         return;
 
     m_speakingFinishedTimer.stop();
-    m_speakingErrorOccurredTimer.startOneShot(.1);
+    m_speakingErrorOccurredTimer.startOneShot(.1, FROM_HERE);
 }
 
 void PlatformSpeechSynthesizerMock::pause()
 {
     client()->didPauseSpeaking(m_utterance);
 }
 
 void PlatformSpeechSynthesizerMock::resume()
 {
     client()->didResumeSpeaking(m_utterance);
 }
 
 
 } // namespace WebCore