Add audio_device_id in mojo media ServiceFactory CreateRenderer api.

media/mojo/interfaces/service_factory.mojom

 // Copyright 2015 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.
 
 module media.mojom;
 
 import "media/mojo/interfaces/audio_decoder.mojom";
 import "media/mojo/interfaces/content_decryption_module.mojom";
 import "media/mojo/interfaces/renderer.mojom";
 import "media/mojo/interfaces/video_decoder.mojom";
 
 // A factory interface to create media services. Renderers can only access
 // ContentDecryptionModules created in the same factory.
 interface ServiceFactory {
   // Creates an AudioDecoder service.
   CreateAudioDecoder(AudioDecoder& audio_decoder);
 
   // Creates a VideoDecoder service.
   CreateVideoDecoder(VideoDecoder& video_decoder);
 
   // Creates a Renderer service.
-  CreateRenderer(Renderer& renderer);
+  // Audio stream will be played on device_id, which is defined in
+  // media/audio/audio_device_description.h. If audio_device_id
+  // is empty, kDefaultDeviceId will be used. 
+  CreateRenderer(string audio_device_id, Renderer& renderer);
 
   // Creates a ContentDecryptionModule service.
   CreateCdm(ContentDecryptionModule& cdm);
 };