Ensures that audio tasks cannot run after AudioManager is deleted.

content/browser/renderer_host/media/video_capture_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 <map>
 #include <memory>
 #include <string>
 
@@ skipping 11 matching lines @@
 #include "content/browser/renderer_host/media/media_stream_requester.h"
 #include "content/browser/renderer_host/media/video_capture_host.h"
 #include "content/browser/renderer_host/media/video_capture_manager.h"
 #include "content/common/media/media_devices.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/test_browser_context.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "content/test/test_content_browser_client.h"
 #include "media/audio/audio_system_impl.h"
 #include "media/audio/mock_audio_manager.h"
+#include "media/audio/test_audio_thread.h"
 #include "media/base/media_switches.h"
 #include "media/capture/video_capture_types.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "net/url_request/url_request_context.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::_;
 using ::testing::AnyNumber;
 using ::testing::AtMost;
@@ skipping 65 matching lines @@
 }
 
 // This is an integration test of VideoCaptureHost in conjunction with
 // MediaStreamManager, VideoCaptureManager, VideoCaptureController, and
 // VideoCaptureDevice.
 class VideoCaptureTest : public testing::Test,
                          public mojom::VideoCaptureObserver {
  public:
   VideoCaptureTest()
       : thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP),
-        audio_manager_(
-            new media::MockAudioManager(base::ThreadTaskRunnerHandle::Get())),
+        audio_manager_(new media::MockAudioManager(
+            base::MakeUnique<media::TestAudioThread>())),
         audio_system_(media::AudioSystemImpl::Create(audio_manager_.get())),
         task_runner_(base::ThreadTaskRunnerHandle::Get()),
         opened_session_id_(kInvalidMediaCaptureSessionId),
         observer_binding_(this) {}
+  ~VideoCaptureTest() override { audio_manager_->Shutdown(); }
 
   void SetUp() override {
     SetBrowserClientForTesting(&browser_client_);
 
     base::CommandLine::ForCurrentProcess()->AppendSwitch(
         switches::kUseFakeDeviceForMediaStream);
     base::CommandLine::ForCurrentProcess()->AppendSwitch(
         switches::kUseFakeUIForMediaStream);
     media_stream_manager_ =
         base::MakeUnique<MediaStreamManager>(audio_system_.get());
@@ skipping 169 matching lines @@
     host_->OnError(id);
     base::RunLoop().RunUntilIdle();
   }
 
  private:
   // |media_stream_manager_| needs to outlive |thread_bundle_| because it is a
   // MessageLoop::DestructionObserver.
   StrictMock<MockMediaStreamRequester> stream_requester_;
   std::unique_ptr<MediaStreamManager> media_stream_manager_;
   const content::TestBrowserThreadBundle thread_bundle_;
-  // |audio_manager_| needs to outlive |thread_bundle_| because it uses the
-  // underlying message loop.
-  media::ScopedAudioManagerPtr audio_manager_;
+  std::unique_ptr<media::AudioManager> audio_manager_;
   std::unique_ptr<media::AudioSystem> audio_system_;
   content::TestBrowserContext browser_context_;
   content::TestContentBrowserClient browser_client_;
   const scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   int opened_session_id_;
   std::string opened_device_label_;
 
   std::unique_ptr<VideoCaptureHost> host_;
   mojo::Binding<mojom::VideoCaptureObserver> observer_binding_;
 
@@ skipping 39 matching lines @@
   StartCapture();
 
   // When the session is closed via the stream without stopping capture, the
   // ENDED event is sent.
   EXPECT_CALL(*this, OnStateChanged(mojom::VideoCaptureState::ENDED));
   CloseSession();
   base::RunLoop().RunUntilIdle();
 }
 
 }  // namespace content