Trace where timers were scheduled in Blink

Source/platform/graphics/BitmapImage.cpp

 /*
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2008 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 447 matching lines @@
     // the other hand, it makes animations "less accurate" for pages that try to
     // sync an image and some other resource (e.g. audio), especially if users
     // switch tabs (and thus stop drawing the animation, which will pause it)
     // during that initial loop, then switch back later.
     if (nextFrame == 0 && m_repetitionsComplete == 0 && m_desiredFrameStartTime < time)
         m_desiredFrameStartTime = time;
 
     if (!catchUpIfNecessary || time < m_desiredFrameStartTime) {
         // Haven't yet reached time for next frame to start; delay until then.
         m_frameTimer = new Timer<BitmapImage>(this, &BitmapImage::advanceAnimation);
-        m_frameTimer->startOneShot(std::max(m_desiredFrameStartTime - time, 0.));
+        m_frameTimer->startOneShot(std::max(m_desiredFrameStartTime - time, 0.), FROM_HERE);
     } else {
         // We've already reached or passed the time for the next frame to start.
         // See if we've also passed the time for frames after that to start, in
         // case we need to skip some frames entirely.  Remember not to advance
         // to an incomplete frame.
         for (size_t frameAfterNext = (nextFrame + 1) % frameCount(); frameIsCompleteAtIndex(frameAfterNext); frameAfterNext = (nextFrame + 1) % frameCount()) {
             // Should we skip the next frame?
             double frameAfterNextStartTime = m_desiredFrameStartTime + frameDurationAtIndex(nextFrame);
             if (time < frameAfterNextStartTime)
                 break;
@@ skipping 133 matching lines @@
     }
     return m_isSolidColor && !m_currentFrame;
 }
 
 Color BitmapImage::solidColor() const
 {
     return m_solidColor;
 }
 
 }