Pass camera facing info to audio client

content/browser/renderer_host/media/audio_renderer_host_unittest.cc

Index: content/browser/renderer_host/media/audio_renderer_host_unittest.cc
diff --git a/content/browser/renderer_host/media/audio_renderer_host_unittest.cc b/content/browser/renderer_host/media/audio_renderer_host_unittest.cc
index 41d6ffb367814d179de470a8976fbf5d5f95499b..bbd2631600d70f6e537124a4b73112dee48c67fd 100644
--- a/content/browser/renderer_host/media/audio_renderer_host_unittest.cc
+++ b/content/browser/renderer_host/media/audio_renderer_host_unittest.cc
@@ -15,6 +15,7 @@
 #include "base/run_loop.h"
 #include "base/sync_socket.h"
 #include "base/threading/thread_task_runner_handle.h"
+#include "component/arc/video_facing.h"
 #include "content/browser/media/capture/audio_mirroring_manager.h"
 #include "content/browser/media/media_internals.h"
 #include "content/browser/renderer_host/media/audio_input_device_manager.h"
@@ -121,6 +122,12 @@ class FakeAudioManagerWithAssociations : public media::FakeAudioManager {
   std::map<std::string, std::string> associations_;
 };
 
+class MockVideoCaptureObserver : public component::VideoCaptureObserver {
+ public:
+  MOCK_METHOD1(OnVideoCaptureStarted, void(component::VideoFacingMode));
+  MOCK_METHOD1(OnVideoCaptureStopped, void(component::VideoFacingMode));
+};
+
 }  // namespace
 
 class MockAudioRendererHost : public AudioRendererHost {
@@ -238,7 +245,7 @@ class AudioRendererHostTest : public testing::Test {
         render_process_host_(&browser_context_, &auth_run_loop_) {
     base::CommandLine::ForCurrentProcess()->AppendSwitch(
         switches::kUseFakeDeviceForMediaStream);
-    media_stream_manager_.reset(new MediaStreamManager(audio_manager_.get()));
+    media_stream_manager_.reset(new MediaStreamManager(audio_manager_.get(), new MockVideoCaptureObserver()));
     host_ = new MockAudioRendererHost(
         &auth_run_loop_, render_process_host_.GetID(), audio_manager_.get(),
         &mirroring_manager_, media_stream_manager_.get(), kSalt);