Remove code that is unused after ContextMenu cleanup

Tools/DumpRenderTree/chromium/WebViewHost.h

 /*
  * Copyright (C) 2012 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 164 matching lines @@
     virtual WebKit::WebScreenInfo screenInfo();
 
     // WebKit::WebFrameClient
     virtual WebKit::WebPlugin* createPlugin(WebKit::WebFrame*, const WebKit::WebPluginParams&);
     virtual WebKit::WebApplicationCacheHost* createApplicationCacheHost(WebKit::WebFrame*, WebKit::WebApplicationCacheHostClient*);
     virtual void loadURLExternally(WebKit::WebFrame*, const WebKit::WebURLRequest&, WebKit::WebNavigationPolicy);
     virtual void loadURLExternally(WebKit::WebFrame*, const WebKit::WebURLRequest&, WebKit::WebNavigationPolicy, const WebKit::WebString& downloadName);
     virtual WebKit::WebNavigationPolicy decidePolicyForNavigation(
         WebKit::WebFrame*, const WebKit::WebURLRequest&,
         WebKit::WebNavigationType, WebKit::WebNavigationPolicy, bool isRedirect);
-    virtual bool canHandleRequest(WebKit::WebFrame*, const WebKit::WebURLRequest&);
     virtual WebKit::WebURLError cancelledError(WebKit::WebFrame*, const WebKit::WebURLRequest&);
     virtual void unableToImplementPolicyWithError(WebKit::WebFrame*, const WebKit::WebURLError&);
     virtual void didCreateDataSource(WebKit::WebFrame*, WebKit::WebDataSource*);
     virtual void didCommitProvisionalLoad(WebKit::WebFrame*, bool isNewNavigation);
     virtual void didClearWindowObject(WebKit::WebFrame*);
     virtual void didReceiveTitle(WebKit::WebFrame*, const WebKit::WebString&, WebKit::WebTextDirection);
     virtual void didChangeIcon(WebKit::WebFrame* , WebKit::WebIconURL::Type);
     virtual void didNavigateWithinPage(WebKit::WebFrame*, bool isNewNavigation);
     virtual void willSendRequest(WebKit::WebFrame*, unsigned identifier, WebKit::WebURLRequest&, const WebKit::WebURLResponse&);
     virtual void openFileSystem(WebKit::WebFrame*, WebKit::WebFileSystemType, long long size, bool create, WebKit::WebFileSystemCallbacks*);
@@ skipping 84 matching lines @@
     OwnPtr<TestNavigationController> m_navigationController;
 
     WebTestRunner::WebTaskList m_taskList;
     Vector<WebKit::WebWidget*> m_popupmenus;
 
     OwnPtr<webkit_support::DRTLayerTreeViewClient> m_layerTreeViewClient;
     OwnPtr<WebKit::WebLayerTreeView> m_layerTreeView;
 };
 
 #endif // WebViewHost_h