Separate PermissionsData::CanExecuteScriptOnPage into two functions

chrome/renderer/extensions/renderer_permissions_policy_delegate.cc

 // 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.
 
 #include "chrome/renderer/extensions/renderer_permissions_policy_delegate.h"
 
 #include "base/command_line.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "extensions/common/extensions_client.h"
@@ skipping 11 matching lines @@
 }
 RendererPermissionsPolicyDelegate::~RendererPermissionsPolicyDelegate() {
   PermissionsData::SetPolicyDelegate(NULL);
 }
 
 bool RendererPermissionsPolicyDelegate::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) {
   const ExtensionsClient::ScriptingWhitelist& whitelist =
       ExtensionsClient::Get()->GetScriptingWhitelist();
   if (std::find(whitelist.begin(), whitelist.end(), extension->id()) !=
       whitelist.end()) {
     return true;
   }
 
   CommandLine* command_line = CommandLine::ForCurrentProcess();
   if (command_line->HasSwitch(::switches::kSigninProcess)) {
     if (error)
       *error = errors::kCannotScriptSigninPage;
     return false;
   }
 
   if (dispatcher_->IsExtensionActive(extension_misc::kWebStoreAppId)) {
     if (error)
       *error = errors::kCannotScriptGallery;
     return false;
   }
 
   return true;
 }
 
 }  // namespace extensions