Remove public web methods using toV8 with empty context.

public/web/WebDOMError.h

 /*
  * Copyright (C) 2013 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 48 matching lines @@
     }
 
     BLINK_EXPORT static WebDOMError create(const WebString& name, const WebString& message);
 
     BLINK_EXPORT void reset();
     BLINK_EXPORT void assign(const WebDOMError&);
 
     BLINK_EXPORT WebString name() const;
     BLINK_EXPORT WebString message() const;
 
-    // FIXME: toV8Value() will be removed after modifying
-    // //src/extensions/renderer/file_system_natives.cc to use
-    // toV8Value(v8::Handle<v8::Obejct>, v8::Isolate*).
-    BLINK_EXPORT v8::Handle<v8::Value> toV8Value();
     BLINK_EXPORT v8::Handle<v8::Value> toV8Value(v8::Handle<v8::Object> creationContext, v8::Isolate*);
 
 #if BLINK_IMPLEMENTATION
     explicit WebDOMError(const PassRefPtrWillBeRawPtr<WebCore::DOMError>&);
     WebDOMError& operator=(const PassRefPtrWillBeRawPtr<WebCore::DOMError>&);
 #endif
 
 protected:
     WebPrivatePtr<WebCore::DOMError> m_private;
 };
 
 } // namespace blink
 
 #endif // WebDOMError_h