Begin adding support for tab mirroring via the MediaStream audio/video capturing

content/browser/renderer_host/media/media_stream_dispatcher_host_unittest.cc

Index: content/browser/renderer_host/media/media_stream_dispatcher_host_unittest.cc
diff --git a/content/browser/renderer_host/media/media_stream_dispatcher_host_unittest.cc b/content/browser/renderer_host/media/media_stream_dispatcher_host_unittest.cc
index eb56bd9802f317e91d37b0df0fc657be1bdae144..f255ca68944581101e037717641f82928f2fbc0b 100644
--- a/content/browser/renderer_host/media/media_stream_dispatcher_host_unittest.cc
+++ b/content/browser/renderer_host/media/media_stream_dispatcher_host_unittest.cc
@@ -7,7 +7,6 @@
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "content/browser/browser_thread_impl.h"
-#include "content/browser/renderer_host/media/audio_input_device_manager.h"
 #include "content/browser/renderer_host/media/media_stream_dispatcher_host.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "content/browser/renderer_host/media/mock_media_observer.h"
@@ -172,13 +171,8 @@ class MediaStreamDispatcherHostTest : public testing::Test {
 
     // Create our own MediaStreamManager.
     audio_manager_.reset(media::AudioManager::Create());
-    scoped_refptr<media_stream::AudioInputDeviceManager>
-        audio_input_device_manager(
-            new media_stream::AudioInputDeviceManager(audio_manager_.get()));
-    scoped_refptr<media_stream::VideoCaptureManager> video_capture_manager(
-        new media_stream::VideoCaptureManager());
-    media_stream_manager_.reset(new media_stream::MediaStreamManager(
-        audio_input_device_manager, video_capture_manager));
+    media_stream_manager_.reset(new media_stream::MediaStreamManager());
+    media_stream_manager_->SetAudioManager(audio_manager_.get());
     // Make sure we use fake devices to avoid long delays.
     media_stream_manager_->UseFakeDevice();
 
@@ -330,7 +324,8 @@ TEST_F(MediaStreamDispatcherHostTest, FailDevice) {
 
   EXPECT_CALL(*host_, OnVideoDeviceFailed(kRenderId, 0));
   int session_id = host_->video_devices_[0].session_id;
-  media_stream_manager_->video_capture_manager()->Error(session_id);
+  media_stream_manager_->GetVideoCaptureManager(
+      content::MEDIA_USER_VIDEO_CAPTURE)->Error(session_id);
   WaitForResult();
   EXPECT_EQ(host_->video_devices_.size(), 0u);
   EXPECT_EQ(host_->NumberOfStreams(), 1u);