Ensures that audio tasks cannot run after AudioManager is deleted.

media/audio/win/audio_low_latency_output_win_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/win/audio_low_latency_output_win.h"
 
 #include <windows.h>
 #include <mmsystem.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/environment.h"
 #include "base/files/file_util.h"
+#include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/test/test_timeouts.h"
 #include "base/time/time.h"
 #include "base/win/scoped_com_initializer.h"
 #include "media/audio/audio_device_description.h"
 #include "media/audio/audio_io.h"
 #include "media/audio/audio_manager.h"
 #include "media/audio/audio_unittest_util.h"
 #include "media/audio/mock_audio_source_callback.h"
+#include "media/audio/test_audio_thread.h"
 #include "media/audio/win/core_audio_util_win.h"
 #include "media/base/decoder_buffer.h"
 #include "media/base/seekable_buffer.h"
 #include "media/base/test_data_util.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gmock_mutant.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::_;
 using ::testing::AnyNumber;
@@ skipping 190 matching lines @@
     AudioManager* audio_manager) {
   AudioOutputStreamWrapper aosw(audio_manager);
   AudioOutputStream* aos = aosw.Create();
   return aos;
 }
 
 class WASAPIAudioOutputStreamTest : public ::testing::Test {
  public:
   WASAPIAudioOutputStreamTest() {
     audio_manager_ =
-        AudioManager::CreateForTesting(message_loop_.task_runner());
+        AudioManager::CreateForTesting(base::MakeUnique<TestAudioThread>());
     base::RunLoop().RunUntilIdle();
   }
-  ~WASAPIAudioOutputStreamTest() override {
-    audio_manager_.reset();
-    base::RunLoop().RunUntilIdle();
-  }
+  ~WASAPIAudioOutputStreamTest() override { audio_manager_->Shutdown(); }
 
  protected:
   base::MessageLoopForUI message_loop_;
-  ScopedAudioManagerPtr audio_manager_;
+  std::unique_ptr<AudioManager> audio_manager_;
 };
 
 // Test Create(), Close() calling sequence.
 TEST_F(WASAPIAudioOutputStreamTest, CreateAndClose) {
   ABORT_AUDIO_TEST_IF_NOT(HasCoreAudioAndOutputDevices(audio_manager_.get()));
   AudioOutputStream* aos = CreateDefaultAudioOutputStream(audio_manager_.get());
   aos->Close();
 }
 
 // Test Open(), Close() calling sequence.
@@ skipping 353 matching lines @@
   aos->Start(&source);
   message_loop_.task_runner()->PostDelayedTask(
       FROM_HERE, base::MessageLoop::QuitWhenIdleClosure(),
       TestTimeouts::action_timeout());
   base::RunLoop().Run();
   aos->Stop();
   aos->Close();
 }
 
 }  // namespace media