Clean up forward declarations and include files in Source/bindings

Source/bindings/core/v8/BindingSecurity.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 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef BindingSecurity_h
 #define BindingSecurity_h
 
 // FIXME: The LocalFrame include should not be necessary, clients should be including it where they use it.
 #include "core/frame/LocalFrame.h"
-#include "wtf/text/WTFString.h"
 #include <v8.h>
 
 namespace blink {
 
-class LocalDOMWindow;
 class ExceptionState;
 class Node;
 
 enum SecurityReportingOption {
     DoNotReportSecurityError,
     ReportSecurityError,
 };
 
 class BindingSecurity {
 public:
     static bool shouldAllowAccessToNode(v8::Isolate*, Node*, ExceptionState&);
     static bool shouldAllowAccessToFrame(v8::Isolate*, Frame*, SecurityReportingOption = ReportSecurityError);
     static bool shouldAllowAccessToFrame(v8::Isolate*, Frame*, ExceptionState&);
 };
 
 }
 
 #endif