Preparing Blink for cross-process frame tree replication

Source/web/WebViewImpl.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 299 matching lines @@
     {
         return m_page.get();
     }
 
     // Returns the main frame associated with this view. This may be null when
     // the page is shutting down, but will be valid at all other times.
     WebLocalFrameImpl* mainFrameImpl();
 
     // FIXME: Temporary method to accommodate out-of-process frame ancestors;
     // will be removed when there can be multiple WebWidgets for a single page.
-    WebLocalFrameImpl* localFrameRootTemporary();
+    WebLocalFrameImpl* localFrameRootTemporary() const;
 
     // Event related methods:
     void mouseContextMenu(const WebMouseEvent&);
     void mouseDoubleClick(const WebMouseEvent&);
 
     bool detectContentOnTouch(const WebPoint&);
     bool startPageScaleAnimation(const WebCore::IntPoint& targetPosition, bool useAnchor, float newScale, double durationInSeconds);
 
     void hasTouchEventHandlers(bool);
 
@@ skipping 390 matching lines @@
     bool m_userGestureObserved;
 };
 
 // We have no ways to check if the specified WebView is an instance of
 // WebViewImpl because WebViewImpl is the only implementation of WebView.
 DEFINE_TYPE_CASTS(WebViewImpl, WebView, webView, true, true);
 
 } // namespace blink
 
 #endif