Switching AudioInputDeviceManager from using AudioManager interface to AudioSystem one.

content/browser/speech/speech_recognizer_impl_unittest.cc

Index: content/browser/speech/speech_recognizer_impl_unittest.cc
diff --git a/content/browser/speech/speech_recognizer_impl_unittest.cc b/content/browser/speech/speech_recognizer_impl_unittest.cc
index b40ba1958457933e0b63933b48024239a3fe4739..62a1c6fee7c93b6fec941fa680636c3d7f9d1a95 100644
--- a/content/browser/speech/speech_recognizer_impl_unittest.cc
+++ b/content/browser/speech/speech_recognizer_impl_unittest.cc
@@ -91,6 +91,7 @@ class SpeechRecognizerImplTest : public SpeechRecognitionEventListener,
 
   ~SpeechRecognizerImplTest() override {
     // Deleting |audio_manager_| on audio thread.
+    audio_system_.reset();
     audio_manager_.reset();
     audio_thread_.Stop();
   }
@@ -219,7 +220,7 @@ class SpeechRecognizerImplTest : public SpeechRecognitionEventListener,
   scoped_refptr<SpeechRecognizerImpl> recognizer_;
   base::Thread audio_thread_;
   media::MockAudioManager::UniquePtr audio_manager_;
-  std::unique_ptr<media::AudioSystem> audio_system_;
+  media::AudioSystem::UniquePtr audio_system_;
   bool recognition_started_;
   bool recognition_ended_;
   bool result_received_;