Ensures that audio tasks cannot run after AudioManager is deleted.

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"
 #include "base/location.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "build/build_config.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "content/browser/renderer_host/media/media_stream_requester.h"
 #include "content/browser/renderer_host/media/media_stream_ui_proxy.h"
 #include "content/common/media/media_stream_options.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "media/audio/audio_device_description.h"
 #include "media/audio/audio_system_impl.h"
 #include "media/audio/fake_audio_log_factory.h"
+#include "media/audio/test_audio_thread.h"
 #include "media/base/media_switches.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 #include "url/origin.h"
 
 #if defined(USE_ALSA)
 #include "media/audio/alsa/audio_manager_alsa.h"
 #elif defined(OS_ANDROID)
 #include "media/audio/android/audio_manager_android.h"
@@ skipping 23 matching lines @@
 
 namespace {
 
 const char kMockSalt[] = "";
 
 // This class mocks the audio manager and overrides some methods to ensure that
 // we can run our tests on the buildbots.
 class MockAudioManager : public AudioManagerPlatform {
  public:
   MockAudioManager()
-      : AudioManagerPlatform(base::ThreadTaskRunnerHandle::Get(),
-                             base::ThreadTaskRunnerHandle::Get(),
+      : AudioManagerPlatform(base::MakeUnique<media::TestAudioThread>(),
                              &fake_audio_log_factory_),
         num_output_devices_(2),
         num_input_devices_(2) {}
   ~MockAudioManager() override {}
 
   void GetAudioInputDeviceNames(
       media::AudioDeviceNames* device_names) override {
     DCHECK(device_names->empty());
 
     // AudioManagers add a default device when there is at least one real device
@@ skipping 83 matching lines @@
  public:
   MediaStreamManagerTest()
       : thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP) {
     audio_manager_.reset(new MockAudioManager());
     audio_system_ = media::AudioSystemImpl::Create(audio_manager_.get());
     media_stream_manager_ =
         base::MakeUnique<MediaStreamManager>(audio_system_.get());
     base::RunLoop().RunUntilIdle();
   }
 
-  ~MediaStreamManagerTest() override {}
+  ~MediaStreamManagerTest() override { audio_manager_->Shutdown(); }
 
   MOCK_METHOD1(Response, void(int index));
   void ResponseCallback(int index,
                         const MediaStreamDevices& devices,
                         std::unique_ptr<MediaStreamUIProxy> ui_proxy) {
     Response(index);
     base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
                                                   run_loop_.QuitClosure());
   }
 
@@ skipping 10 matching lines @@
     return media_stream_manager_->MakeMediaAccessRequest(
         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<MockAudioManager> audio_manager_;
   std::unique_ptr<media::AudioSystem> audio_system_;
   base::RunLoop run_loop_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MediaStreamManagerTest);
 };
 
 TEST_F(MediaStreamManagerTest, MakeMediaAccessRequest) {
   MakeMediaAccessRequest(0);
 
@@ skipping 72 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