Implement audio constraints for PeerConneciton API

content/renderer/media/media_stream_dependency_factory_unittest.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 "base/memory/scoped_ptr.h"
 #include "content/common/media/media_stream_options.h"
 #include "content/renderer/media/media_stream_extra_data.h"
 #include "content/renderer/media/media_stream_source_extra_data.h"
 #include "content/renderer/media/mock_media_stream_dependency_factory.h"
 #include "content/renderer/media/mock_web_rtc_peer_connection_handler_client.h"
@@ skipping 70 matching lines @@
               new MediaStreamSourceExtraData(info));
     }
     WebKit::WebMediaStreamDescriptor stream_desc;
     stream_desc.initialize("media stream", audio_sources, video_sources);
 
     return stream_desc;
   }
 
   void CreateNativeSources(WebKit::WebMediaStreamDescriptor* descriptor) {
     MediaSourceCreatedObserver observer;
+    WebKit::WebMediaConstraints audio_constraints;
     dependency_factory_->CreateNativeMediaSources(
         WebKit::WebMediaConstraints(),
         WebKit::WebMediaConstraints(),
         descriptor,
         base::Bind(
             &MediaSourceCreatedObserver::OnCreateNativeSourcesComplete,
             base::Unretained(&observer)));
 
     EXPECT_FALSE(observer.result());
     // Change the state of the created source to live. This should trigger
     // MediaSourceCreatedObserver::OnCreateNativeSourcesComplete
     if (dependency_factory_->last_video_source()) {
+      dependency_factory_->last_audio_source()->SetLive();
       dependency_factory_->last_video_source()->SetLive();
     }
     EXPECT_TRUE(observer.result());
     EXPECT_TRUE(observer.description() == descriptor);
   }
 
  protected:
   scoped_ptr<MockMediaStreamDependencyFactory> dependency_factory_;
 };
 
@@ skipping 39 matching lines @@
   EXPECT_TRUE(dependency_factory_->EnsurePeerConnectionFactory());
   dependency_factory_->CreateNativeLocalMediaStream(&stream_desc);
   MediaStreamExtraData* extra_data = static_cast<MediaStreamExtraData*>(
       stream_desc.extraData());
   ASSERT_TRUE(extra_data && extra_data->local_stream());
   EXPECT_EQ(0u, extra_data->local_stream()->video_tracks()->count());
   EXPECT_EQ(0u, extra_data->local_stream()->audio_tracks()->count());
 }
 
 }  // namespace content