Trace where timers were scheduled in Blink

Source/core/rendering/ImageQualityController.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 106 matching lines @@
             }
         }
         it->key->repaint();
     }
 
     m_liveResizeOptimizationIsActive = false;
 }
 
 void ImageQualityController::restartTimer()
 {
-    m_timer.startOneShot(cLowQualityTimeThreshold);
+    m_timer.startOneShot(cLowQualityTimeThreshold, FROM_HERE);
 }
 
 bool ImageQualityController::shouldPaintAtLowQuality(GraphicsContext* context, RenderObject* object, Image* image, const void *layer, const LayoutSize& layoutSize)
 {
     // If the image is not a bitmap image, then none of this is relevant and we just paint at high
     // quality.
     if (!image || !image->isBitmapImage() || context->paintingDisabled())
         return false;
 
     if (object->style()->imageRendering() == ImageRenderingOptimizeContrast)
@@ skipping 65 matching lines @@
     // This object has been resized to two different sizes while the timer
     // is active, so draw at low quality, set the flag for animated resizes and
     // the object to the list for high quality redraw.
     set(object, innerMap, layer, scaledLayoutSize);
     m_animatedResizeIsActive = true;
     restartTimer();
     return true;
 }
 
 } // namespace WebCore