Remove redundant codepath for webgl api blocking

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 601 matching lines @@
 
 
     // WebGL ------------------------------------------------------
 
     // Asks the embedder whether WebGL is allowed for the WebFrame. This call is
     // placed here instead of WebContentSettingsClient because this class is
     // implemented in content/, and putting it here avoids adding more public
     // content/ APIs.
     virtual bool allowWebGL(bool defaultValue) { return defaultValue; }
 
-    // Notifies the client that a WebGL context was lost on this page with the
-    // given reason (one of the GL_ARB_robustness status codes; see
-    // Extensions3D.h in WebCore/platform/graphics).
-    virtual void didLoseWebGLContext(int) { }
-
-
     // Screen Orientation --------------------------------------------------
 
     // Access the embedder API for (client-based) screen orientation client .
     virtual WebScreenOrientationClient* webScreenOrientationClient() { return 0; }
 
 
     // Accessibility -------------------------------------------------------
 
     // Notifies embedder about an accessibility event.
     virtual void postAccessibilityEvent(const WebAXObject&, WebAXEvent) { }
@@ skipping 95 matching lines @@
     // Mojo ----------------------------------------------------------------
     virtual ServiceRegistry* serviceRegistry() { return nullptr; }
 
 protected:
     virtual ~WebFrameClient() { }
 };
 
 } // namespace blink
 
 #endif