Move c/c/e/extension_set to top-level extensions/

chrome/renderer/extensions/resource_request_policy.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_RENDERER_EXTENSIONS_RESOURCE_REQUEST_POLICY_H_
 #define CHROME_RENDERER_EXTENSIONS_RESOURCE_REQUEST_POLICY_H_
 
 #include "content/public/common/page_transition_types.h"
 
-class ExtensionSet;
 class GURL;
 
 namespace blink {
 class WebFrame;
 }
 
 namespace extensions {
 
+class ExtensionSet;
+
 // Encapsulates the policy for when chrome-extension:// and
 // chrome-extension-resource:// URLs can be requested.
 class ResourceRequestPolicy {
  public:
   // Returns true if the chrome-extension:// |resource_url| can be requested
   // from |frame_url|. In some cases this decision is made based upon how
   // this request was generated. Web triggered transitions are more restrictive
   // than those triggered through UI.
   static bool CanRequestResource(const GURL& resource_url,
                                  blink::WebFrame* frame,
                                  content::PageTransition transition_type,
                                  const ExtensionSet* loaded_extensions);
   // Returns true if the chrome-extension-resource:// |resource_url| can be
   // requested from |frame_url|.
   static bool CanRequestExtensionResourceScheme(const GURL& resource_url,
                                                 blink::WebFrame* frame);
 
  private:
   ResourceRequestPolicy();
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_RENDERER_EXTENSIONS_RESOURCE_REQUEST_POLICY_H_