Move blink::PluginData, blink::PluginInfo, blink::MimeTypeInfo to oilpan heap.

third_party/WebKit/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.
@@ skipping 114 matching lines @@
   static PageSet& OrdinaryPages();
 
   static void PlatformColorsChanged();
 
   void SetNeedsRecalcStyleInAllFrames();
   void UpdateAcceleratedCompositingSettings();
 
   ViewportDescription GetViewportDescription() const;
 
   static void RefreshPlugins();
-  PluginData* GetPluginData(SecurityOrigin* main_frame_origin) const;
+  PluginData* GetPluginData(SecurityOrigin* main_frame_origin);
 
   EditorClient& GetEditorClient() const { return *editor_client_; }
   SpellCheckerClient& GetSpellCheckerClient() const {
     return *spell_checker_client_;
   }
 
   void SetMainFrame(Frame*);
   Frame* MainFrame() const { return main_frame_; }
   // Escape hatch for existing code that assumes that the root frame is
   // always a LocalFrame. With OOPI, this is not always the case. Code that
@@ skipping 171 matching lines @@
   //
   // However, there are several locations (InspectorOverlay, SVGImage, and
   // WebPagePopupImpl) which don't hold a reference to the main frame at all
   // after creating it. These are still safe because they always create a
   // Frame with a FrameView. FrameView and Frame hold references to each
   // other, thus keeping each other alive. The call to willBeDestroyed()
   // breaks this cycle, so the frame is still properly destroyed once no
   // longer needed.
   Member<Frame> main_frame_;
 
-  mutable RefPtr<PluginData> plugin_data_;
+  Member<PluginData> plugin_data_;
 
   EditorClient* const editor_client_;
   SpellCheckerClient* const spell_checker_client_;
   Member<ValidationMessageClient> validation_message_client_;
 
   UseCounter use_counter_;
   Deprecation deprecation_;
   HostsUsingFeatures hosts_using_features_;
 
   bool opened_by_dom_;
@@ skipping 18 matching lines @@
 #endif
 
   int subframe_count_;
 };
 
 extern template class CORE_EXTERN_TEMPLATE_EXPORT Supplement<Page>;
 
 }  // namespace blink
 
 #endif  // Page_h