Trace where timers were scheduled in Blink

Source/core/fetch/Resource.cpp

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
     Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
@@ skipping 507 matching lines @@
     // This object may be dead here.
 }
 
 void Resource::allClientsRemoved()
 {
     if (!m_loader)
         return;
     if (m_type == MainResource || m_type == Raw)
         cancelTimerFired(&m_cancelTimer);
     else if (!m_cancelTimer.isActive())
-        m_cancelTimer.startOneShot(0);
+        m_cancelTimer.startOneShot(0, FROM_HERE);
 }
 
 void Resource::cancelTimerFired(Timer<Resource>* timer)
 {
     ASSERT_UNUSED(timer, timer == &m_cancelTimer);
     if (hasClients() || !m_loader)
         return;
     ResourcePtr<Resource> protect(this);
     m_loader->cancelIfNotFinishing();
     if (m_status != Cached)
@@ skipping 336 matching lines @@
 }
 
 Resource::ResourceCallback::ResourceCallback()
     : m_callbackTimer(this, &ResourceCallback::timerFired)
 {
 }
 
 void Resource::ResourceCallback::schedule(Resource* resource)
 {
     if (!m_callbackTimer.isActive())
-        m_callbackTimer.startOneShot(0);
+        m_callbackTimer.startOneShot(0, FROM_HERE);
     m_resourcesWithPendingClients.add(resource);
 }
 
 void Resource::ResourceCallback::cancel(Resource* resource)
 {
     m_resourcesWithPendingClients.remove(resource);
     if (m_callbackTimer.isActive() && m_resourcesWithPendingClients.isEmpty())
         m_callbackTimer.stop();
 }
 
@@ skipping 96 matching lines @@
         return "Shader";
     case Resource::ImportResource:
         return "ImportResource";
     }
     ASSERT_NOT_REACHED();
     return "Unknown";
 }
 #endif // !LOG_DISABLED
 
 }