Ensures that audio tasks cannot run after AudioManager is deleted.

media/audio/audio_output_controller_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 "media/audio/audio_output_controller.h"
 
 #include <stdint.h>
 
 #include <memory>
 #include <vector>
@@ skipping 98 matching lines @@
 }
 
 class AudioOutputControllerTest : public testing::Test {
  public:
   AudioOutputControllerTest()
       : audio_manager_(AudioManager::CreateForTesting(
             base::ThreadTaskRunnerHandle::Get())) {
     base::RunLoop().RunUntilIdle();
   }
 
-  ~AudioOutputControllerTest() override {}
+  ~AudioOutputControllerTest() override { audio_manager_->Shutdown(); }
 
  protected:
   void Create(int samples_per_packet) {
     params_ = AudioParameters(
         AudioParameters::AUDIO_FAKE, kChannelLayout,
         kSampleRate, kBitsPerSample, samples_per_packet);
 
     if (params_.IsValid()) {
       EXPECT_CALL(mock_event_handler_, OnControllerCreated());
     }
@@ skipping 140 matching lines @@
 
   // These help make test sequences more readable.
   void DivertNeverPlaying() { Divert(false, 0); }
   void DivertWillEventuallyBeTwicePlayed() { Divert(false, 2); }
   void DivertWhilePlaying() { Divert(true, 1); }
   void RevertWasNotPlaying() { Revert(false); }
   void RevertWhilePlaying() { Revert(true); }
 
  private:
   base::TestMessageLoop message_loop_;
-  ScopedAudioManagerPtr audio_manager_;
+  std::unique_ptr<AudioManager> audio_manager_;
   MockAudioOutputControllerEventHandler mock_event_handler_;
   MockAudioOutputControllerSyncReader mock_sync_reader_;
   MockAudioOutputStream mock_stream_;
   AudioParameters params_;
   scoped_refptr<AudioOutputController> controller_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioOutputControllerTest);
 };
 
 TEST_F(AudioOutputControllerTest, CreateAndClose) {
@@ skipping 139 matching lines @@
   // Switching device would trigger a read, and in turn it would trigger a push
   // to sink.
   EXPECT_CALL(mock_sink, OnDataCheck(kBufferNonZeroData));
   SwitchDevice(false);
 
   StopDuplicating(&mock_sink);
   Close();
 }
 
 }  // namespace media