Move c/r/extensions/* into extensions namespace

chrome/renderer/extensions/extension_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_EXTENSION_RESOURCE_REQUEST_POLICY_H_
-#define CHROME_RENDERER_EXTENSIONS_EXTENSION_RESOURCE_REQUEST_POLICY_H_
-
-class ExtensionSet;
-class GURL;
-namespace WebKit {
-class WebFrame;
-}
-
-// Encapsulates the policy for when chrome-extension:// and
-// chrome-extension-resource:// URLs can be requested.
-class ExtensionResourceRequestPolicy {
- public:
-  // Returns true if the chrome-extension:// |resource_url| can be requested
-  // from |frame_url|.
-  static bool CanRequestResource(const GURL& resource_url,
-                                 WebKit::WebFrame* frame,
-                                 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,
-      WebKit::WebFrame* frame);
-
- private:
-  ExtensionResourceRequestPolicy();
-};
-
-#endif  // CHROME_RENDERER_EXTENSIONS_EXTENSION_RESOURCE_REQUEST_POLICY_H_