Trace where timers were scheduled in Blink

Source/web/tests/FrameTestHelpers.cpp

 /*
  * Copyright (C) 2011 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 73 matching lines @@
     WebURLRequest urlRequest;
     urlRequest.initialize();
     urlRequest.setURL(URLTestHelpers::toKURL(url));
     frame->loadRequest(urlRequest);
 }
 
 void runPendingTasks()
 {
     // Pending tasks include Timers that have been scheduled.
     WebCore::Timer<QuitTask> quitOnTimeout(new QuitTask, &QuitTask::PostThis);
-    quitOnTimeout.startOneShot(0);
+    quitOnTimeout.startOneShot(0, FROM_HERE);
     Platform::current()->currentThread()->enterRunLoop();
 }
 
 WebViewHelper::WebViewHelper()
     : m_webView(0)
 {
 }
 
 WebViewHelper::~WebViewHelper()
 {
@@ skipping 50 matching lines @@
 void TestWebFrameClient::frameDetached(WebFrame* frame)
 {
     if (frame->parent())
         frame->parent()->removeChild(frame);
     frame->close();
 }
 
 
 } // namespace FrameTestHelpers
 } // namespace blink