Looking up device id by session id for AudioRendererMixerInput

media/base/mock_audio_renderer_sink.h

Index: media/base/mock_audio_renderer_sink.h
diff --git a/media/base/mock_audio_renderer_sink.h b/media/base/mock_audio_renderer_sink.h
index 2194bc99d926165e961540ec8bb96c53d31de64b..898363cb39b592a2d75cbb44e5d739f73062eb76 100644
--- a/media/base/mock_audio_renderer_sink.h
+++ b/media/base/mock_audio_renderer_sink.h
@@ -9,6 +9,7 @@
 
 #include "base/macros.h"
 #include "media/audio/audio_parameters.h"
+#include "media/base/audio_renderer_mixer_sink.h"
 #include "media/base/audio_renderer_sink.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
@@ -16,6 +17,8 @@ namespace media {
 
 class FakeOutputDevice;
 
+// TODO(olka): when RestartableAudioRendererSink is retired, throw this away and
+// use MockAudioRendererMixerSink

[Guido Urdaneta, 2016/03/08 14:53:09]

Is there a crbug for this?

[o1ka, 2016/04/05 15:13:38]

No more MockAudioRendererMixerSink.

 class MockAudioRendererSink : public RestartableAudioRendererSink {
  public:
   MockAudioRendererSink();
@@ -42,6 +45,43 @@ class MockAudioRendererSink : public RestartableAudioRendererSink {
   DISALLOW_COPY_AND_ASSIGN(MockAudioRendererSink);
 };
 
+class MockAudioRendererMixerSink : public AudioRendererMixerSink {
+ public:
+  MockAudioRendererMixerSink();
+  explicit MockAudioRendererMixerSink(OutputDeviceStatus device_status);
+  MockAudioRendererMixerSink(OutputDeviceStatus device_status,
+                             const AudioParameters& device_output_params);
+  MockAudioRendererMixerSink(const std::string& device_id,
+                             OutputDeviceStatus device_status);
+  MockAudioRendererMixerSink(const std::string& device_id,
+                             OutputDeviceStatus device_status,
+                             const AudioParameters& device_output_params);
+
+  MOCK_METHOD0(Start, void());
+  MOCK_METHOD0(Stop, void());
+  MOCK_METHOD0(Pause, void());
+  MOCK_METHOD0(Play, void());
+  MOCK_METHOD1(SetVolume, bool(double volume));
+  OutputDevice* GetOutputDevice();
+
+  void Initialize(const AudioParameters& params,
+                  RenderCallback* renderer) override;
+
+  std::string GetDeviceId() override { return device_id_; }
+
+  AudioRendererSink::RenderCallback* callback() { return callback_; }
+
+ protected:
+  ~MockAudioRendererMixerSink() override;
+
+ private:
+  RenderCallback* callback_;
+  scoped_ptr<FakeOutputDevice> output_device_;
+  const std::string device_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(MockAudioRendererMixerSink);
+};
+
 }  // namespace media
 
 #endif  // MEDIA_BASE_MOCK_AUDIO_RENDERER_SINK_H_