[Extensions] Use document url (not top url) for tab-specific permissions

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 "chrome/common/extensions/extension_constants.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/extensions_client.h"
 #include "extensions/common/manifest_constants.h"
 #include "extensions/common/switches.h"
 #include "extensions/renderer/dispatcher.h"
 
 namespace extensions {
 
 namespace errors = manifest_errors;
 
 RendererPermissionsPolicyDelegate::RendererPermissionsPolicyDelegate(
     Dispatcher* dispatcher) : dispatcher_(dispatcher) {
   PermissionsData::SetPolicyDelegate(this);
 }
 RendererPermissionsPolicyDelegate::~RendererPermissionsPolicyDelegate() {
   PermissionsData::SetPolicyDelegate(NULL);
 }
 
 bool RendererPermissionsPolicyDelegate::CanExecuteScriptOnPage(
     const Extension* extension,
     const GURL& document_url,
-    const GURL& top_document_url,
     int tab_id,
     int process_id,
     std::string* error) {
   if (PermissionsData::CanExecuteScriptEverywhere(extension))
     return true;
 
   if (dispatcher_->IsExtensionActive(kWebStoreAppId)) {
     if (error)
       *error = errors::kCannotScriptGallery;
     return false;
   }
 
   return true;
 }
 
 }  // namespace extensions