Separate PermissionsData::CanExecuteScriptOnPage into two functions

chrome/renderer/extensions/renderer_permissions_policy_delegate.h

 // Copyright 2013 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_RENDERER_PERMISSIONS_POLICY_DELEGATE_H_
 #define CHROME_RENDERER_EXTENSIONS_RENDERER_PERMISSIONS_POLICY_DELEGATE_H_
 
 #include "extensions/common/permissions/permissions_data.h"
 
 namespace extensions {
 
 class Dispatcher;
 
 // Policy delegate for the renderer process.
 class RendererPermissionsPolicyDelegate
     : public PermissionsData::PolicyDelegate {
  public:
   explicit RendererPermissionsPolicyDelegate(Dispatcher* dispatcher);
   virtual ~RendererPermissionsPolicyDelegate();
 
   virtual bool CanExecuteScriptOnPage(const Extension* extension,
                                       const GURL& document_url,
                                       const GURL& top_document_url,
                                       int tab_id,
-                                      const UserScript* script,
                                       int process_id,
                                       std::string* error) OVERRIDE;
 
  private:
   Dispatcher* dispatcher_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererPermissionsPolicyDelegate);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_RENDERER_EXTENSIONS_RENDERER_PERMISSIONS_POLICY_DELEGATE_H_