Make SecurityContext available in RemoteFrames.

Source/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 27 matching lines @@
 class ChromeClient;
 class Document;
 class FrameClient;
 class FrameHost;
 class FrameOwner;
 class HTMLFrameOwnerElement;
 class DOMWindow;
 class KURL;
 class Page;
 class RenderPart;
+class SecurityContext;
 class Settings;
 class WebLayer;
 
 struct Referrer;
 
 class Frame : public RefCountedWillBeGarbageCollectedFinalized<Frame> {
 public:
     virtual ~Frame();
 
     virtual void trace(Visitor*);
@@ skipping 20 matching lines @@
     bool isMainFrame() const;
     bool isLocalRoot() const;
 
     FrameOwner* owner() const;
     void setOwner(FrameOwner* owner) { m_owner = owner; }
     HTMLFrameOwnerElement* deprecatedLocalOwner() const;
 
     FrameTree& tree() const;
     ChromeClient& chromeClient() const;
 
+    virtual SecurityContext* securityContext() const = 0;
+
     RenderPart* ownerRenderer() const; // Renderer for the element that contains this frame.
 
     // FIXME: These should move to RemoteFrame when that is instantiated.
     void setRemotePlatformLayer(WebLayer*);
     WebLayer* remotePlatformLayer() const { return m_remotePlatformLayer; }
 
     Settings* settings() const; // can be null
 
     // FIXME: This method identifies a LocalFrame that is acting as a RemoteFrame.
     // It is necessary only until we can instantiate a RemoteFrame, at which point
@@ skipping 28 matching lines @@
 {
     return m_treeNode;
 }
 
 // Allow equality comparisons of Frames by reference or pointer, interchangeably.
 DEFINE_COMPARISON_OPERATORS_WITH_REFERENCES_REFCOUNTED(Frame)
 
 } // namespace blink
 
 #endif // Frame_h