Trace where timers were scheduled in Blink

Source/core/css/CSSFontSelector.cpp

 /*
  * Copyright (C) 2007, 2008, 2011 Apple Inc. All rights reserved.
  *           (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * 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
@@ skipping 45 matching lines @@
 {
     if (!m_resourceFetcher || !fontResource->stillNeedsLoad())
         return;
 
     m_fontsToBeginLoading.append(fontResource);
     // FIXME: Use RequestCountTracker??!!
     // Increment the request count now, in order to prevent didFinishLoad from being dispatched
     // after this font has been requested but before it began loading. Balanced by
     // decrementRequestCount() in beginLoadTimerFired() and in clearDocument().
     m_resourceFetcher->incrementRequestCount(fontResource);
-    m_beginLoadingTimer.startOneShot(0);
+    m_beginLoadingTimer.startOneShot(0, FROM_HERE);
 }
 
 void FontLoader::beginLoadTimerFired(Timer<WebCore::FontLoader>*)
 {
     loadPendingFonts();
 }
 
 void FontLoader::loadPendingFonts()
 {
     ASSERT(m_resourceFetcher);
@@ skipping 142 matching lines @@
     m_fontLoader.loadPendingFonts();
 }
 
 void CSSFontSelector::updateGenericFontFamilySettings(Document& document)
 {
     ASSERT(document.settings());
     m_genericFontFamilySettings = document.settings()->genericFontFamilySettings();
 }
 
 }