Oilpan: promptly finalize remaining SuspendableTimers.

Source/core/frame/LocalDOMWindow.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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 119 matching lines @@
     virtual void stop() override
     {
         SuspendableTimer::stop();
 
         if (!m_preventDestruction) {
             // Will destroy this object
             m_window->removePostMessageTimer(this);
         }
     }
 
+    // Eager finalization is needed to promptly stop this timer object.
+    // (see DOMTimer comment for more.)
+    EAGERLY_FINALIZE();
     DEFINE_INLINE_VIRTUAL_TRACE()
     {
         visitor->trace(m_event);
         visitor->trace(m_window);
         visitor->trace(m_stackTrace);
         SuspendableTimer::trace(visitor);
     }
 
 private:
     virtual void fired() override
@@ skipping 1373 matching lines @@
     DOMWindow::trace(visitor);
     DOMWindowLifecycleNotifier::trace(visitor);
 }
 
 LocalFrame* LocalDOMWindow::frame() const
 {
     return m_frameObserver->frame();
 }
 
 } // namespace blink