Trace where timers were scheduled in Blink

Source/core/rendering/RenderMarquee.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
@@ skipping 155 matching lines @@
     if (!m_suspended && !m_stopped) {
         if (isHorizontal())
             layer()->scrollableArea()->scrollToOffset(IntSize(m_start, 0));
         else
             layer()->scrollableArea()->scrollToOffset(IntSize(0, m_start));
     } else {
         m_suspended = false;
         m_stopped = false;
     }
 
-    m_timer.startRepeating(speed() * 0.001);
+    m_timer.startRepeating(speed() * 0.001, FROM_HERE);
 }
 
 void RenderMarquee::suspend()
 {
     m_timer.stop();
     m_suspended = true;
 }
 
 void RenderMarquee::stop()
 {
@@ skipping 58 matching lines @@
         s->setTextAlign(TASTART);
     }
 
     // Legacy hack - multiple browsers default vertical marquees to 200px tall.
     if (!isHorizontal() && s->height().isAuto())
         s->setHeight(Length(200, Fixed));
 
     if (speed() != marqueeSpeed()) {
         m_speed = marqueeSpeed();
         if (m_timer.isActive())
-            m_timer.startRepeating(speed() * 0.001);
+            m_timer.startRepeating(speed() * 0.001, FROM_HERE);
     }
 
     // Check the loop count to see if we should now stop.
     bool activate = (m_totalLoops <= 0 || m_currentLoop < m_totalLoops);
     if (activate && !m_timer.isActive())
         setNeedsLayout();
     else if (!activate && m_timer.isActive())
         m_timer.stop();
 }
 
@@ skipping 54 matching lines @@
             m_reset = true;
     }
 
     if (isHorizontal())
         layer()->scrollableArea()->scrollToXOffset(newPos);
     else
         layer()->scrollableArea()->scrollToYOffset(newPos);
 }
 
 } // namespace WebCore