Extract VideoCaptureDeviceFactory out of VideoCaptureDevice and use for File and FakeVCD.

content/browser/renderer_host/media/media_stream_manager_unittest.cc

Index: content/browser/renderer_host/media/media_stream_manager_unittest.cc
diff --git a/content/browser/renderer_host/media/media_stream_manager_unittest.cc b/content/browser/renderer_host/media/media_stream_manager_unittest.cc
index be4d498f87d81fd3922bddc2120b2a110125acc9..643764314688208da8665aeaaa74d9085995ff86 100644
--- a/content/browser/renderer_host/media/media_stream_manager_unittest.cc
+++ b/content/browser/renderer_host/media/media_stream_manager_unittest.cc
@@ -14,6 +14,7 @@
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "media/audio/audio_manager_base.h"
 #include "media/audio/fake_audio_log_factory.h"
+#include "media/video/capture/fake_video_capture_device_factory.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -80,8 +81,11 @@ class MediaStreamManagerTest : public ::testing::Test {
     media_stream_manager_.reset(new MediaStreamManager(audio_manager_.get()));
 
     // Use fake devices in order to run on the bots.
-    media_stream_manager_->UseFakeDevice();
-  }
+    media_stream_manager_->UseFakeVideoDevice(
+        scoped_ptr<media::VideoCaptureDeviceFactory>(
+            new media::FakeVideoCaptureDeviceFactory()));
+    media_stream_manager_->UseFakeAudioDevice();
+}
 
   virtual ~MediaStreamManagerTest() {
   }