Ensures that audio tasks cannot run after AudioManager is deleted.

media/audio/win/audio_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 <windows.h>
 #include <mmsystem.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/base_paths.h"
 #include "base/memory/aligned_memory.h"
+#include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/sync_socket.h"
 #include "base/time/time.h"
 #include "base/win/scoped_com_initializer.h"
 #include "base/win/windows_version.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/simple_sources.h"
+#include "media/audio/test_audio_thread.h"
 #include "media/base/limits.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::_;
 using ::testing::AnyNumber;
 using ::testing::DoAll;
 using ::testing::Field;
 using ::testing::Invoke;
 using ::testing::InSequence;
@@ skipping 112 matching lines @@
  private:
   HANDLE fmap_;
   char* start_;
   uint32_t size_;
 };
 
 class WinAudioTest : public ::testing::Test {
  public:
   WinAudioTest() {
     audio_manager_ =
-        AudioManager::CreateForTesting(message_loop_.task_runner());
+        AudioManager::CreateForTesting(base::MakeUnique<TestAudioThread>());
     base::RunLoop().RunUntilIdle();
   }
-  ~WinAudioTest() override {
-    audio_manager_.reset();
-    base::RunLoop().RunUntilIdle();
-  }
+  ~WinAudioTest() override { audio_manager_->Shutdown(); }
 
  protected:
   base::MessageLoop message_loop_;
-  ScopedAudioManagerPtr audio_manager_;
+  std::unique_ptr<AudioManager> audio_manager_;
 };
 
 // ===========================================================================
 // Validation of AudioManager::AUDIO_PCM_LINEAR
 //
 // NOTE:
 // The tests can fail on the build bots when somebody connects to them via
 // remote-desktop and the rdp client installs an audio device that fails to open
 // at some point, possibly when the connection goes idle.
 
@@ skipping 480 matching lines @@
   oas->Start(&source);
 
   ::WaitForSingleObject(thread, INFINITE);
   ::CloseHandle(thread);
 
   oas->Stop();
   oas->Close();
 }
 
 }  // namespace media