Remove redundant codepath for webgl api blocking

third_party/WebKit/Source/web/FrameLoaderClientImpl.h

 /*
  * Copyright (C) 2009, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2011 Apple 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.
@@ skipping 143 matching lines @@
     void didChangeSandboxFlags(Frame* childFrame, SandboxFlags) override;
     void didChangeFrameOwnerProperties(HTMLFrameElementBase*) override;
 
     void dispatchWillOpenWebSocket(WebSocketHandle*) override;
 
     void dispatchWillStartUsingPeerConnectionHandler(WebRTCPeerConnectionHandler*) override;
 
     void didRequestAutocomplete(HTMLFormElement*) override;
 
     bool allowWebGL(bool enabledPerSettings) override;
-    void didLoseWebGLContext(int arbRobustnessContextLostReason) override;
 
     void dispatchWillInsertBody() override;
 
     v8::Local<v8::Value> createTestInterface(const AtomicString& name) override;
 
     PassOwnPtr<WebServiceWorkerProvider> createServiceWorkerProvider() override;
     bool isControlledByServiceWorker(DocumentLoader&) override;
     int64_t serviceWorkerID(DocumentLoader&) override;
     SharedWorkerRepositoryClient* sharedWorkerRepositoryClient() override;
 
@@ skipping 13 matching lines @@
     // The WebFrame that owns this object and manages its lifetime. Therefore,
     // the web frame object is guaranteed to exist.
     RawPtrWillBeMember<WebLocalFrameImpl> m_webFrame;
 };
 
 DEFINE_TYPE_CASTS(FrameLoaderClientImpl, FrameLoaderClient, client, client->isFrameLoaderClientImpl(), client.isFrameLoaderClientImpl());
 
 } // namespace blink
 
 #endif