Switching AudioInputDeviceManager from using AudioManager interface to AudioSystem one.

content/browser/renderer_host/media/media_stream_manager_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 187 matching lines @@
         render_process_id, render_frame_id, page_request_id, controls,
         security_origin, callback);
   }
 
   // media_stream_manager_ needs to outlive thread_bundle_ because it is a
   // MessageLoop::DestructionObserver. audio_manager_ needs to outlive
   // thread_bundle_ because it uses the underlying message loop.
   std::unique_ptr<MediaStreamManager> media_stream_manager_;
   content::TestBrowserThreadBundle thread_bundle_;
   std::unique_ptr<MockAudioManager, media::AudioManagerDeleter> audio_manager_;
-  std::unique_ptr<media::AudioSystem> audio_system_;
+  media::AudioSystem::UniquePtr audio_system_;
   base::RunLoop run_loop_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MediaStreamManagerTest);
 };
 
 TEST_F(MediaStreamManagerTest, MakeMediaAccessRequest) {
   MakeMediaAccessRequest(0);
 
   // Expecting the callback will be triggered and quit the test.
@@ skipping 71 matching lines @@
                                                   unique_other_id);
   EXPECT_TRUE(MediaStreamManager::DoesMediaDeviceIDMatchHMAC(
       kMockSalt, security_origin, hashed_other_id, unique_other_id));
   EXPECT_NE(unique_other_id, hashed_other_id);
   EXPECT_EQ(hashed_other_id.size(), 64U);
   for (const char& c : hashed_other_id)
     EXPECT_TRUE(base::IsAsciiDigit(c) || (c >= 'a' && c <= 'f'));
 }
 
 }  // namespace content