Ensures that audio tasks cannot run after AudioManager is deleted.

media/audio/mac/audio_low_latency_input_mac_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 <stdint.h>
 
 #include <memory>
 
 #include "base/environment.h"
+#include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/test/test_timeouts.h"
 #include "base/threading/platform_thread.h"
 #include "media/audio/audio_device_description.h"
 #include "media/audio/audio_device_info_accessor_for_tests.h"
 #include "media/audio/audio_io.h"
 #include "media/audio/audio_manager_base.h"
 #include "media/audio/audio_unittest_util.h"
 #include "media/audio/mac/audio_low_latency_input_mac.h"
+#include "media/audio/test_audio_thread.h"
 #include "media/base/seekable_buffer.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::_;
 using ::testing::AnyNumber;
 using ::testing::AtLeast;
 using ::testing::Ge;
 using ::testing::NotNull;
 
@@ skipping 74 matching lines @@
  private:
   media::SeekableBuffer buffer_;
   FILE* file_;
   int bytes_to_write_;
 };
 
 class MacAudioInputTest : public testing::Test {
  protected:
   MacAudioInputTest()
       : message_loop_(base::MessageLoop::TYPE_UI),
-        audio_manager_(
-            AudioManager::CreateForTesting(message_loop_.task_runner())) {
+        audio_manager_(AudioManager::CreateForTesting(
+            base::MakeUnique<TestAudioThread>())) {
     // Wait for the AudioManager to finish any initialization on the audio loop.
     base::RunLoop().RunUntilIdle();
   }
 
   ~MacAudioInputTest() override {
     audio_manager_.reset();
     base::RunLoop().RunUntilIdle();
   }
 
   bool InputDevicesAvailable() {
@@ skipping 26 matching lines @@
                         fs, 16, samples_per_packet),
         AudioDeviceDescription::kDefaultDeviceId,
         base::Bind(&MacAudioInputTest::OnLogMessage, base::Unretained(this)));
     EXPECT_TRUE(ais);
     return ais;
   }
 
   void OnLogMessage(const std::string& message) { log_message_ = message; }
 
   base::MessageLoop message_loop_;
-  ScopedAudioManagerPtr audio_manager_;
+  std::unique_ptr<AudioManager> audio_manager_;
   std::string log_message_;
 };
 
 // Test Create(), Close().
 TEST_F(MacAudioInputTest, AUAudioInputStreamCreateAndClose) {
   ABORT_AUDIO_TEST_IF_NOT(InputDevicesAvailable());
   AudioInputStream* ais = CreateDefaultAudioInputStream();
   ais->Close();
 }
 
@@ skipping 108 matching lines @@
   WriteToFileAudioSink file_sink(file_name);
   fprintf(stderr, "               >> Speak into the mic while recording...\n");
   ais->Start(&file_sink);
   base::PlatformThread::Sleep(TestTimeouts::action_timeout());
   ais->Stop();
   fprintf(stderr, "               >> Recording has stopped.\n");
   ais->Close();
 }
 
 }  // namespace media