Oilpan: Move all supplements of Page, Document, and WorkerClients to the managed heap.

Source/core/page/Page.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All Rights Reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 522 matching lines @@
     return static_cast<PageLifecycleNotifier&>(LifecycleContext<Page>::lifecycleNotifier());
 }
 
 PassOwnPtr<LifecycleNotifier<Page> > Page::createLifecycleNotifier()
 {
     return PageLifecycleNotifier::create(this);
 }
 
 void Page::trace(Visitor* visitor)
 {
-    visitor->registerWeakMembers<Page, &Page::clearWeakMembers>(this);
     visitor->trace(m_multisamplingChangedObservers);
-    Supplementable<Page>::trace(visitor);
-}
-
-void Page::clearWeakMembers(Visitor* visitor)
-{
-#if ENABLE(INPUT_SPEECH)
-    SpeechInput* input = SpeechInput::from(this);
-    if (input)
-        input->clearWeakMembers(visitor);
-#endif
+    WillBeHeapSupplementable<Page>::trace(visitor);
 }
 
 void Page::willBeDestroyed()
 {
     // Disable all agents prior to resetting the frame view.
     m_inspectorController->willBeDestroyed();
 
     m_mainFrame->setView(nullptr);
 
     allPages().remove(this);
     if (ordinaryPages().contains(this))
         ordinaryPages().remove(this);
 
     for (LocalFrame* frame = mainFrame(); frame; frame = frame->tree().traverseNext())
         frame->loader().frameDetached();
 
     if (m_scrollingCoordinator)
         m_scrollingCoordinator->willBeDestroyed();
 
 #ifndef NDEBUG
     pageCounter.decrement();
 #endif
 
     m_chrome->willBeDestroyed();
     m_mainFrame.clear();
     if (m_validationMessageClient)
         m_validationMessageClient->willBeDestroyed();
-    Supplementable<Page>::willBeDestroyed();
+    WillBeHeapSupplementable<Page>::willBeDestroyed();
 }
 
 Page::PageClients::PageClients()
     : chromeClient(0)
     , contextMenuClient(0)
     , editorClient(0)
     , dragClient(0)
     , inspectorClient(0)
     , backForwardClient(0)
     , spellCheckerClient(0)
     , storageClient(0)
 {
 }
 
 Page::PageClients::~PageClients()
 {
 }
 
 } // namespace WebCore