OOPIF: Handle cross-site frames being blocked by X-Frame-Options or CSP.

third_party/WebKit/public/web/WebFrameClient.h

 /*
  * Copyright (C) 2011, 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 171 matching lines @@
     virtual void didEnforceStrictMixedContentChecking() {}
 
     // The sandbox flags have changed for a child frame of this frame.
     virtual void didChangeSandboxFlags(WebFrame* childFrame, WebSandboxFlags flags) { }
 
     // Some frame owner properties have changed for a child frame of this frame.
     // Frame owner properties currently include: scrolling, marginwidth and
     // marginheight.
     virtual void didChangeFrameOwnerProperties(WebFrame* childFrame, const WebFrameOwnerProperties&) { }
 
+    // This frame was blocked due to X-Frame-Options or CSP frame-ancestors.
+    virtual void didBlockLoad() { }
+
     // Called when a watched CSS selector matches or stops matching.
     virtual void didMatchCSS(WebLocalFrame*, const WebVector<WebString>& newlyMatchingSelectors, const WebVector<WebString>& stoppedMatchingSelectors) { }
 
 
     // Console messages ----------------------------------------------------
 
     // Whether or not we should report a detailed message for the given source.
     virtual bool shouldReportDetailedMessageForSource(const WebString& source) { return false; }
 
     // A new message was added to the console.
@@ skipping 497 matching lines @@
     // This method takes ownership of the callbacks pointer.
     virtual void checkIfAudioSinkExistsAndIsAuthorized(const WebString& sinkId, const WebSecurityOrigin&, WebSetSinkIdCallbacks*) { BLINK_ASSERT_NOT_REACHED(); }
 
 protected:
     virtual ~WebFrameClient() { }
 };
 
 } // namespace blink
 
 #endif