Cleanup: Remove unneeded forward declarations from chrome/browser/extensions.

chrome/browser/extensions/extension_permissions_api.h

 // Copyright (c) 2011 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_BROWSER_EXTENSIONS_EXTENSION_PERMISSIONS_API_H__
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_PERMISSIONS_API_H__
 #pragma once
 
+#include <string>
+
 #include "base/compiler_specific.h"
 #include "chrome/browser/extensions/extension_function.h"
 #include "chrome/browser/extensions/extension_install_ui.h"
 #include "chrome/common/extensions/extension_permission_set.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "content/browser/renderer_host/render_process_host.h"
 
-namespace base {
-class DictionaryValue;
-}
 class Extension;
 class ExtensionPermissionSet;
 class ExtensionService;
-class Profile;
 
 class ExtensionPermissionsManager {
  public:
   explicit ExtensionPermissionsManager(ExtensionService* extension_service);
   ~ExtensionPermissionsManager();
 
   // Adds the set of |permissions| to the |extension|'s active permission set
   // and sends the relevant messages and notifications. This method assumes the
   // user has already been prompted, if necessary, for the extra permissions.
   void AddPermissions(const Extension* extension,
@@ skipping 68 matching lines @@
   virtual bool RunImpl() OVERRIDE;
 
  private:
   scoped_ptr<ExtensionInstallUI> install_ui_;
   scoped_refptr<ExtensionPermissionSet> requested_permissions_;
   const Extension* extension_;
   DECLARE_EXTENSION_FUNCTION_NAME("permissions.request")
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PERMISSIONS_API_H__