Fix getUserMedia so that failure is reported for invalid audio sources.

content/renderer/media/webrtc/webrtc_media_stream_adapter_unittest.cc

Index: content/renderer/media/webrtc/webrtc_media_stream_adapter_unittest.cc
diff --git a/content/renderer/media/webrtc/webrtc_media_stream_adapter_unittest.cc b/content/renderer/media/webrtc/webrtc_media_stream_adapter_unittest.cc
index 01b27bc1460d45cdf274b2280ac62c1584f33eb9..d1d4b356970a2aab2b53a0ece0dcd8540255b782 100644
--- a/content/renderer/media/webrtc/webrtc_media_stream_adapter_unittest.cc
+++ b/content/renderer/media/webrtc/webrtc_media_stream_adapter_unittest.cc
@@ -58,10 +58,10 @@ class WebRtcMediaStreamAdapterTest : public ::testing::Test {
                            media::AudioParameters::kAudioCDSampleRate,
                            media::CHANNEL_LAYOUT_STEREO,
                            media::AudioParameters::kAudioCDSampleRate / 50),
+          MockConstraintFactory().CreateWebMediaConstraints(),
+          base::Bind(&WebRtcMediaStreamAdapterTest::OnAudioSourceStarted),
           dependency_factory_.get());
       source->SetAllowInvalidRenderFrameIdForTesting(true);
-      source->SetSourceConstraints(
-          MockConstraintFactory().CreateWebMediaConstraints());
       audio_source.setExtraData(source);  // Takes ownership.
       audio_track_vector[0].initialize(audio_source);
       EXPECT_CALL(*mock_audio_device_factory_.mock_capturer_source(),
@@ -119,6 +119,10 @@ class WebRtcMediaStreamAdapterTest : public ::testing::Test {
   }
 
  private:
+  static void OnAudioSourceStarted(MediaStreamSource* source,
+                                   MediaStreamRequestResult result,
+                                   const blink::WebString& result_name) {}
+
   base::MessageLoop message_loop_;
   std::unique_ptr<ChildProcess> child_process_;
   std::unique_ptr<MockPeerConnectionDependencyFactory> dependency_factory_;