Add LayoutRoot

sky/engine/core/frame/Frame.h

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999-2001 Lars Knoll <knoll@kde.org>
  *                     1999-2001 Antti Koivisto <koivisto@kde.org>
  *                     2000-2001 Simon Hausmann <hausmann@kde.org>
  *                     2000-2001 Dirk Mueller <mueller@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
@@ skipping 21 matching lines @@
 #include "sky/engine/wtf/RefCounted.h"
 #include "sky/engine/wtf/RefPtr.h"
 
 namespace blink {
 class WebLayer;
 }
 
 namespace blink {
 
 class ChromeClient;
+class Document;
 class FrameClient;
 class FrameHost;
 class LocalDOMWindow;
 class Page;
 class Settings;
 
 class Frame : public RefCounted<Frame> {
 public:
     virtual ~Frame();
 
@@ skipping 13 matching lines @@
     // after RemoteFrame is complete enough to exist without them.
     virtual void setDOMWindow(PassRefPtr<LocalDOMWindow>);
     LocalDOMWindow* domWindow() const;
 
     Settings* settings() const; // can be null
 
 protected:
     Frame(FrameClient*, FrameHost*);
 
     FrameHost* m_host;
+    Document* m_document;
 
     RefPtr<LocalDOMWindow> m_domWindow;
 
 private:
     FrameClient* m_client;
 };
 
 inline FrameClient* Frame::client() const
 {
     return m_client;
 }
 
 inline void Frame::clearClient()
 {
     m_client = 0;
 }
 
 inline LocalDOMWindow* Frame::domWindow() const
 {
     return m_domWindow.get();
 }
 
 // Allow equality comparisons of Frames by reference or pointer, interchangeably.
 DEFINE_COMPARISON_OPERATORS_WITH_REFERENCES_REFCOUNTED(Frame)
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_CORE_FRAME_FRAME_H_