Drive extension functions from ExtensionFunction::Run. The

chrome/browser/extensions/api/music_manager_private/music_manager_private_api.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/browser/extensions/api/music_manager_private/music_manager_private_api.h"
 
 #include "chrome/browser/extensions/api/music_manager_private/device_id.h"
 
 using content::BrowserThread;
 
 namespace {
 
 const char kDeviceIdNotSupported[] =
     "Device ID API is not supported on this platform.";
 
 }
 
 namespace extensions {
 namespace api {
 
 MusicManagerPrivateGetDeviceIdFunction::
     MusicManagerPrivateGetDeviceIdFunction() {
 }
 
 MusicManagerPrivateGetDeviceIdFunction::
     ~MusicManagerPrivateGetDeviceIdFunction() {
 }
 
-bool MusicManagerPrivateGetDeviceIdFunction::RunImpl() {
+bool MusicManagerPrivateGetDeviceIdFunction::RunAsync() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DeviceId::GetDeviceId(
       this->extension_id(),
       base::Bind(
           &MusicManagerPrivateGetDeviceIdFunction::DeviceIdCallback,
           this));
   return true;  // Still processing!
 }
 
 void MusicManagerPrivateGetDeviceIdFunction::DeviceIdCallback(
     const std::string& device_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   bool response;
   if (device_id.empty()) {
     SetError(kDeviceIdNotSupported);
     response = false;
   } else {
     SetResult(new base::StringValue(device_id));
     response = true;
   }
 
   SendResponse(response);
 }
 
 } // namespace api
 } // namespace extensions