Trace where timers were scheduled in Blink

Source/core/animation/DocumentTimeline.cpp

 /*
  * Copyright (C) 2013 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 111 matching lines @@
 void DocumentTimeline::setZeroTime(double zeroTime)
 {
     ASSERT(isNull(m_zeroTime));
     m_zeroTime = zeroTime;
     ASSERT(!isNull(m_zeroTime));
     serviceAnimations();
 }
 
 void DocumentTimeline::DocumentTimelineTiming::wakeAfter(double duration)
 {
-    m_timer.startOneShot(duration);
+    m_timer.startOneShot(duration, FROM_HERE);
 }
 
 void DocumentTimeline::DocumentTimelineTiming::cancelWake()
 {
     m_timer.stop();
 }
 
 void DocumentTimeline::DocumentTimelineTiming::serviceOnNextFrame()
 {
     if (m_timeline->m_document && m_timeline->m_document->view())
@@ skipping 37 matching lines @@
             count += (timedItem && (timedItem->isCurrent() || timedItem->isInEffect()));
     }
     return count;
 }
 
 void DocumentTimeline::detachFromDocument() {
     m_document = 0;
 }
 
 } // namespace