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

Source/core/page/Page.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 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,
@@ skipping 60 matching lines @@
 class Settings;
 class SpellCheckerClient;
 class StorageNamespace;
 class UndoStack;
 class ValidationMessageClient;
 
 typedef uint64_t LinkHash;
 
 float deviceScaleFactor(LocalFrame*);
 
-class Page FINAL : public NoBaseWillBeGarbageCollectedFinalized<Page>, public Supplementable<Page>, public LifecycleContext<Page>, public SettingsDelegate {
+class Page FINAL : public NoBaseWillBeGarbageCollectedFinalized<Page>, public WillBeHeapSupplementable<Page>, public LifecycleContext<Page>, public SettingsDelegate {
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(Page);
     WTF_MAKE_NONCOPYABLE(Page);
     friend class Settings;
 public:
     static void scheduleForcedStyleRecalcForAllPages();
 
     // It is up to the platform to ensure that non-null clients are provided where required.
     struct PageClients {
         WTF_MAKE_NONCOPYABLE(PageClients); WTF_MAKE_FAST_ALLOCATED;
     public:
         PageClients();
@@ skipping 193 matching lines @@
     WillBeHeapHashSet<RawPtrWillBeWeakMember<MultisamplingChangedObserver> > m_multisamplingChangedObservers;
 
     // A pointer to all the interfaces provided to in-process Frames for this Page.
     // FIXME: Most of the members of Page should move onto FrameHost.
     OwnPtr<FrameHost> m_frameHost;
 };
 
 } // namespace WebCore
 
 #endif // Page_h