Clean forward declaration in public

public/web/WebSettings.h

 /*
  * Copyright (C) 2009 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 20 matching lines @@
 #ifndef WebSettings_h
 #define WebSettings_h
 
 #include "../platform/WebCommon.h"
 #include "../platform/WebSize.h"
 #include <unicode/uscript.h>
 
 namespace blink {
 
 class WebString;
-class WebURL;
 
 // WebSettings is owned by the WebView and allows code to modify the settings for
 // the WebView's page without any knowledge of WebCore itself.  For the most part,
 // these functions have a 1:1 mapping with the methods in WebCore/page/Settings.h.
 class WebSettings {
 public:
     enum ImageAnimationPolicy {
         ImageAnimationPolicyAllowed,
         ImageAnimationPolicyAnimateOnce,
         ImageAnimationPolicyNoAnimation
@@ skipping 199 matching lines @@
     virtual void setWideViewportQuirkEnabled(bool) = 0;
     virtual void setXSSAuditorEnabled(bool) = 0;
 
 protected:
     ~WebSettings() { }
 };
 
 } // namespace blink
 
 #endif