Cleaned up the WebRtcAudioCapturer a bit.

content/renderer/media/mock_media_stream_dependency_factory.cc

 // Copyright (c) 2012 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 "content/renderer/media/mock_media_stream_dependency_factory.h"
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/renderer/media/mock_peer_connection_impl.h"
 #include "content/renderer/media/webaudio_capturer_source.h"
@@ skipping 462 matching lines @@
   return new talk_base::RefCountedObject<MockLocalVideoTrack>(id, source.get());
 }
 
 scoped_refptr<webrtc::AudioTrackInterface>
 MockMediaStreamDependencyFactory::CreateLocalAudioTrack(
     const std::string& id,
     const scoped_refptr<WebRtcAudioCapturer>& capturer,
     WebAudioCapturerSource* webaudio_source,
     webrtc::AudioSourceInterface* source) {
   DCHECK(mock_pc_factory_created_);
-  DCHECK(!capturer.get());
+  blink::WebMediaConstraints constraints;
+  scoped_refptr<WebRtcAudioCapturer> audio_capturer = capturer ?
+      capturer : WebRtcAudioCapturer::CreateCapturer(-1, StreamDeviceInfo(),
+                                                     constraints, NULL);
   return WebRtcLocalAudioTrack::Create(
-      id, WebRtcAudioCapturer::CreateCapturer(), webaudio_source, source);
+      id, audio_capturer, webaudio_source, source);
 }
 
 SessionDescriptionInterface*
 MockMediaStreamDependencyFactory::CreateSessionDescription(
     const std::string& type,
     const std::string& sdp,
     webrtc::SdpParseError* error) {
   return new MockSessionDescription(type, sdp);
 }
 
 webrtc::IceCandidateInterface*
 MockMediaStreamDependencyFactory::CreateIceCandidate(
     const std::string& sdp_mid,
     int sdp_mline_index,
     const std::string& sdp) {
   return new MockIceCandidate(sdp_mid, sdp_mline_index, sdp);
 }
 
 scoped_refptr<WebRtcAudioCapturer>
-MockMediaStreamDependencyFactory::MaybeCreateAudioCapturer(
+MockMediaStreamDependencyFactory::CreateAudioCapturer(
     int render_view_id, const StreamDeviceInfo& device_info,
     const blink::WebMediaConstraints& constraints) {
-  return WebRtcAudioCapturer::CreateCapturer();
+  return WebRtcAudioCapturer::CreateCapturer(-1, device_info,
+                                             constraints, NULL);
 }
 
 }  // namespace content