Trace where timers were scheduled in Blink

Source/core/svg/graphics/SVGImageChromeClient.cpp

 /*
  * Copyright (C) 2012 Apple 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
@@ skipping 49 matching lines @@
 
 void SVGImageChromeClient::scheduleAnimation()
 {
     // Because a single SVGImage can be shared by multiple pages, we can't key
     // our svg image layout on the page's real animation frame. Therefore, we
     // run this fake animation timer to trigger layout in SVGImages. The name,
     // "animationTimer", is to match the new requestAnimationFrame-based layout
     // approach.
     if (m_animationTimer.isActive())
         return;
-    m_animationTimer.startOneShot(0);
+    m_animationTimer.startOneShot(0, FROM_HERE);
 }
 
 void SVGImageChromeClient::animationTimerFired(Timer<SVGImageChromeClient>*)
 {
     // In principle, we should call requestAnimationFrame callbacks here, but
     // we know there aren't any because script is forbidden inside SVGImages.
     if (m_image) {
         m_image->frameView()->page()->animator().serviceScriptedAnimations(0);
         m_image->frameView()->updateLayoutAndStyleIfNeededRecursive();
     }
 }
 
 }