Remove duplicated headers from core/

Source/core/frame/DOMSecurityPolicy.cpp

 /*
  * Copyright (C) 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 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.
  */
 
 #include "config.h"
 #include "core/frame/DOMSecurityPolicy.h"
 
-#include "core/dom/ContextLifecycleObserver.h"
 #include "core/dom/DOMStringList.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/frame/ContentSecurityPolicy.h"
 #include "wtf/text/TextPosition.h"
-#include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 namespace {
 
 bool isPolicyActiveInContext(ExecutionContext* context)
 {
     // If the ExecutionContext has been destroyed, there's no active policy.
     if (!context)
         return false;
@@ skipping 122 matching lines @@
 {
     return isAllowedWithURL<&ContentSecurityPolicy::allowScriptFromSource>(executionContext(), url);
 }
 
 bool DOMSecurityPolicy::allowsStyleFrom(const String& url) const
 {
     return isAllowedWithURL<&ContentSecurityPolicy::allowStyleFromSource>(executionContext(), url);
 }
 
 } // namespace WebCore