Trace where timers were scheduled in Blink

Source/core/dom/PresentationAttributeStyle.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 69 matching lines @@
     }
 
     void didHitPresentationAttributeCache()
     {
         if (presentationAttributeCache().size() < minimumPresentationAttributeCacheSizeForCleaning)
             return;
 
         m_hitCount++;
 
         if (!m_cleanTimer.isActive())
-            m_cleanTimer.startOneShot(presentationAttributeCacheCleanTimeInSeconds);
+            m_cleanTimer.startOneShot(presentationAttributeCacheCleanTimeInSeconds, FROM_HERE);
     }
 
 private:
     static const unsigned presentationAttributeCacheCleanTimeInSeconds = 60;
     static const unsigned minimumPresentationAttributeCacheSizeForCleaning = 100;
     static const unsigned minimumPresentationAttributeCacheHitCountPerMinute = (100 * presentationAttributeCacheCleanTimeInSeconds) / 60;
 
     void cleanCache(Timer<PresentationAttributeCacheCleaner>* timer)
     {
         ASSERT_UNUSED(timer, timer == &m_cleanTimer);
@@ skipping 98 matching lines @@
         presentationAttributeCache().clear();
         presentationAttributeCache().set(cacheHash, newEntry.release());
     } else {
         cacheValue->value = newEntry.release();
     }
 
     return style.release();
 }
 
 } // namespace WebCore