Refactor AudioInputController and split stat by stream type.

media/audio/test_audio_input_controller_factory.h

Index: media/audio/test_audio_input_controller_factory.h
diff --git a/media/audio/test_audio_input_controller_factory.h b/media/audio/test_audio_input_controller_factory.h
index 90f81b7f7b490f70185c638ce26fdfe13baf62fb..2fd61abc2f78c1db99187937498634de6d08a4bf 100644
--- a/media/audio/test_audio_input_controller_factory.h
+++ b/media/audio/test_audio_input_controller_factory.h
@@ -60,7 +60,8 @@ class TestAudioInputController : public AudioInputController {
                            const AudioParameters& audio_parameters,
                            EventHandler* event_handler,
                            SyncWriter* sync_writer,
-                           UserInputMonitor* user_input_monitor);
+                           UserInputMonitor* user_input_monitor,
+                           StreamType type);
 
   // Returns the event handler installed on the AudioInputController.
   EventHandler* event_handler() const { return event_handler_; }
@@ -109,7 +110,8 @@ class TestAudioInputControllerFactory : public AudioInputController::Factory {
       AudioManager* audio_manager,
       AudioInputController::EventHandler* event_handler,
       AudioParameters params,
-      UserInputMonitor* user_input_monitor) override;
+      UserInputMonitor* user_input_monitor,
+      AudioInputController::StreamType type) override;
 
   void set_delegate(TestAudioInputControllerDelegate* delegate) {
     delegate_ = delegate;