Unit tests of AudioInputRendererHost. Some cleanups.

content/browser/renderer_host/media/audio_input_renderer_host_unittest.cc

Index: content/browser/renderer_host/media/audio_input_renderer_host_unittest.cc
diff --git a/content/browser/renderer_host/media/audio_input_renderer_host_unittest.cc b/content/browser/renderer_host/media/audio_input_renderer_host_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..74997b221d2cba40950e5c2554af392f8f8427aa
--- /dev/null
+++ b/content/browser/renderer_host/media/audio_input_renderer_host_unittest.cc
@@ -0,0 +1,571 @@
+// Copyright 2016 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 "content/browser/renderer_host/media/audio_input_renderer_host.h"
+
+#include <vector>
+
+#include "base/bind.h"
+#include "base/command_line.h"
+#include "base/run_loop.h"
+#include "content/browser/bad_message.h"
+#include "content/browser/media/capture/audio_mirroring_manager.h"
+#include "content/browser/renderer_host/media/audio_input_device_manager.h"
+#include "content/browser/renderer_host/media/media_stream_manager.h"
+#include "content/browser/renderer_host/media/media_stream_ui_proxy.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/common/content_switches.h"
+#include "content/public/test/mock_render_process_host.h"
+#include "content/public/test/test_browser_context.h"
+#include "content/public/test/test_browser_thread.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "media/audio/audio_device_description.h"
+#include "media/audio/audio_input_writer.h"
+#include "media/audio/fake_audio_log_factory.h"
+#include "media/audio/fake_audio_manager.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"
+
+using ::media::AudioInputController;
+using ::testing::_;
+using ::testing::Assign;
+using ::testing::InSequence;
+using ::testing::Invoke;
+using ::testing::Mock;
+using ::testing::NotNull;
+using ::testing::SaveArg;
+using ::testing::StrictMock;
+
+namespace content {
+
+namespace {
+
+const int kStreamId = 100;
+const int kRenderProcessId = 42;
+const int kRendererPid = 21718;
+const int kRenderFrameId = 31415;
+const int kSharedMemoryCount = 11;
+const char kSecurityOrigin[] = "http://localhost";
+#if defined(OS_WIN)
+const wchar_t kBaseFileName[] = L"some_file_name";
+#else
+const char kBaseFileName[] = "some_file_name";
+#endif
+
+url::Origin SecurityOrigin() {
+  return url::Origin(GURL(kSecurityOrigin));
+}
+
+AudioInputHostMsg_CreateStream_Config DefaultConfig() {
+  AudioInputHostMsg_CreateStream_Config config;
+  config.params = media::AudioParameters::UnavailableDeviceParams();
+  config.automatic_gain_control = false;
+  config.shared_memory_count = kSharedMemoryCount;
+  return config;
+}
+
+class MockRenderer {
+ public:
+  MOCK_METHOD5(NotifyStreamCreated,
+               void(int /*stream_id*/,
+                    base::SharedMemoryHandle /*handle*/,
+                    base::SyncSocket::TransitDescriptor /*socket_desriptor*/,
+                    uint32_t /*length*/,
+                    uint32_t /*total_segments*/));
+  MOCK_METHOD2(NotifyStreamVolume, void(int /*stream_id*/, double /*volume*/));
+  MOCK_METHOD2(NotifyStreamStateChanged,
+               void(int /*stream_id*/,
+                    media::AudioInputIPCDelegateState /*state*/));
+  MOCK_METHOD0(WasShutDown, void());
+};
+
+// This class overrides Send to intercept the messages that the
+// AudioInputRendererHost sends to the renderer. They are sent to
+// the provided MockRenderer instead.
+class AudioInputRendererHostWithInterception : public AudioInputRendererHost {
+ public:
+  AudioInputRendererHostWithInterception(
+      int render_process_id,
+      int32_t renderer_pid,
+      media::AudioManager* audio_manager,
+      MediaStreamManager* media_stream_manager,
+      AudioMirroringManager* audio_mirroring_manager,
+      media::UserInputMonitor* user_input_monitor,
+      MockRenderer* renderer)
+      : AudioInputRendererHost(render_process_id,
+                               renderer_pid,
+                               audio_manager,
+                               media_stream_manager,
+                               audio_mirroring_manager,
+                               user_input_monitor),
+        renderer_(renderer) {
+    set_peer_process_for_testing(base::Process::Current());
+  }
+
+ protected:
+  ~AudioInputRendererHostWithInterception() override = default;
+
+ private:
+  bool Send(IPC::Message* message) override {
+    DCHECK_CURRENTLY_ON(BrowserThread::IO);
+    bool handled = true;
+
+    IPC_BEGIN_MESSAGE_MAP(AudioInputRendererHostWithInterception, *message)
+      IPC_MESSAGE_HANDLER(AudioInputMsg_NotifyStreamCreated,
+                          NotifyRendererStreamCreated)
+      IPC_MESSAGE_HANDLER(AudioInputMsg_NotifyStreamVolume,
+                          NotifyRendererStreamVolume)
+      IPC_MESSAGE_HANDLER(AudioInputMsg_NotifyStreamStateChanged,
+                          NotifyRendererStreamStateChanged)
+      IPC_MESSAGE_UNHANDLED(handled = false)
+    IPC_END_MESSAGE_MAP()
+
+    EXPECT_TRUE(handled);
+    delete message;
+    return true;
+  }
+
+  void ShutdownForBadMessage() override { renderer_->WasShutDown(); }
+
+  void NotifyRendererStreamCreated(
+      int stream_id,
+      base::SharedMemoryHandle handle,
+      base::SyncSocket::TransitDescriptor socket_descriptor,
+      uint32_t length,
+      uint32_t total_segments) {
+    // It's difficult to check that the sync socket and shared memory is
+    // valid in the gmock macros, so we check them here.
+    EXPECT_NE(base::SyncSocket::UnwrapHandle(socket_descriptor),
+              base::SyncSocket::kInvalidHandle);
+    base::SharedMemory memory(handle, /*read_only*/ true);
+    EXPECT_TRUE(memory.Map(length));
+    renderer_->NotifyStreamCreated(stream_id, handle, socket_descriptor, length,
+                                   total_segments);
+    EXPECT_TRUE(memory.Unmap());
+    memory.Close();
+  }
+
+  void NotifyRendererStreamVolume(int stream_id, double volume) {
+    renderer_->NotifyStreamVolume(stream_id, volume);
+  }
+
+  void NotifyRendererStreamStateChanged(
+      int stream_id,
+      media::AudioInputIPCDelegateState state) {
+    renderer_->NotifyStreamStateChanged(stream_id, state);
+  }
+
+  MockRenderer* renderer_;
+};
+
+class MockAudioInputController : public AudioInputController {
+ public:
+  MockAudioInputController(
+      scoped_refptr<base::SingleThreadTaskRunner> task_runner,
+      AudioInputController::SyncWriter* writer,
+      media::AudioManager* audio_manager,
+      AudioInputController::EventHandler* event_handler,
+      media::UserInputMonitor* user_input_monitor)
+      : AudioInputController(event_handler,
+                             writer,
+                             /*debug_writer*/ nullptr,
+                             user_input_monitor,
+                             /*agc*/ false) {
+    task_runner_ = std::move(task_runner);
+    task_runner_->PostTask(
+        FROM_HERE,
+        base::Bind(&AudioInputController::EventHandler::OnCreated,
+                   base::Unretained(event_handler), base::Unretained(this)));
+    ON_CALL(*this, Close(_))
+        .WillByDefault(Invoke(this, &MockAudioInputController::ExecuteClose));
+    ON_CALL(*this, EnableDebugRecording(_))
+        .WillByDefault(SaveArg<0>(&file_name));
+  }
+
+  EventHandler* handler() { return handler_; }
+
+  // File name that we pretend to do a debug recording to, if any.
+  base::FilePath debug_file_name() { return file_name; }
+
+  MOCK_METHOD0(Record, void());
+  MOCK_METHOD1(Close, void(const base::Closure&));
+  MOCK_METHOD1(SetVolume, void(double));
+  MOCK_METHOD1(EnableDebugRecording, void(const base::FilePath&));
+  MOCK_METHOD0(DisableDebugRecording, void());
+
+  // AudioInputCallback impl, irrelevant to us.
+  MOCK_METHOD4(
+      OnData,
+      void(media::AudioInputStream*, const media::AudioBus*, uint32_t, double));
+  MOCK_METHOD1(OnError, void(media::AudioInputStream*));
+
+ protected:
+  ~MockAudioInputController() override = default;
+
+ private:
+  void ExecuteClose(const base::Closure& task) {
+    // Hop to audio manager thread before calling task, since this is the real
+    // behavior.
+    task_runner_->PostTaskAndReply(FROM_HERE, base::Bind([]() {}), task);
+  }
+
+  base::FilePath file_name;
+};
+
+class MockControllerFactory : public AudioInputController::Factory {
+ public:
+  using MockController = StrictMock<MockAudioInputController>;
+
+  MockControllerFactory() {
+    AudioInputController::set_factory_for_testing(this);
+  }
+
+  ~MockControllerFactory() override {
+    AudioInputController::set_factory_for_testing(nullptr);
+  }
+
+  // AudioInputController::Factory implementaion:
+  AudioInputController* Create(
+      scoped_refptr<base::SingleThreadTaskRunner> task_runner,
+      AudioInputController::SyncWriter* sync_writer,
+      media::AudioManager* audio_manager,
+      AudioInputController::EventHandler* event_handler,
+      media::AudioParameters params,
+      media::UserInputMonitor* user_input_monitor) override {
+    ControllerCreated();
+    scoped_refptr<MockController> controller =
+        new MockController(std::move(task_runner), sync_writer, audio_manager,
+                           event_handler, user_input_monitor);
+    controller_list_.push_back(controller);
+    return controller.get();
+  }
+
+  MockController* controller(size_t i) {
+    EXPECT_GT(controller_list_.size(), i);
+    return controller_list_[i].get();
+  }
+
+  MOCK_METHOD0(ControllerCreated, void());
+
+ private:
+  std::vector<scoped_refptr<MockController>> controller_list_;
+};
+
+}  // namespace
+
+class AudioInputRendererHostTest : public testing::Test {
+ public:
+  AudioInputRendererHostTest() {
+    base::CommandLine* flags = base::CommandLine::ForCurrentProcess();
+    flags->AppendSwitch(switches::kUseFakeDeviceForMediaStream);
+    flags->AppendSwitch(switches::kUseFakeUIForMediaStream);
+
+    audio_manager_.reset(new media::FakeAudioManager(
+        base::ThreadTaskRunnerHandle::Get(),
+        base::ThreadTaskRunnerHandle::Get(), &log_factory_));
+    media_stream_manager_ =
+        base::MakeUnique<MediaStreamManager>(audio_manager_.get());
+    airh_ = new AudioInputRendererHostWithInterception(
+        kRenderProcessId, kRendererPid, media::AudioManager::Get(),
+        media_stream_manager_.get(), AudioMirroringManager::GetInstance(),
+        nullptr, &renderer_);
+  }
+
+  ~AudioInputRendererHostTest() override {
+    airh_->OnChannelClosing();
+    base::RunLoop().RunUntilIdle();
+  }
+
+ protected:
+  // Makes device |device_id| with name |name| available to open with the
+  // session id returned.
+  int Open(const std::string& device_id, const std::string& name) {
+    int session_id = media_stream_manager_->audio_input_device_manager()->Open(
+        StreamDeviceInfo(MEDIA_DEVICE_AUDIO_CAPTURE, name, device_id));
+    base::RunLoop().RunUntilIdle();
+    return session_id;
+  }
+
+  std::string GetRawNondefaultId() {
+    std::string id;
+    MediaDevicesManager::BoolDeviceTypes devices_to_enumerate;
+    devices_to_enumerate[MEDIA_DEVICE_TYPE_AUDIO_INPUT] = true;
+
+    media_stream_manager_->media_devices_manager()->EnumerateDevices(
+        devices_to_enumerate,
+        base::Bind(
+            [](std::string* id, const MediaDeviceEnumeration& result) {
+              // Index 0 is default, so use 1.
+              CHECK(result[MediaDeviceType::MEDIA_DEVICE_TYPE_AUDIO_INPUT]
+                        .size() > 1)
+                  << "Expected to have a nondefault device.";
+              *id = result[MediaDeviceType::MEDIA_DEVICE_TYPE_AUDIO_INPUT][1]
+                        .device_id;
+            },
+            base::Unretained(&id)));
+    base::RunLoop().RunUntilIdle();
+    return id;
+  }
+
+  media::FakeAudioLogFactory log_factory_;
+  StrictMock<MockControllerFactory> controller_factory_;
+  std::unique_ptr<MediaStreamManager> media_stream_manager_;
+  TestBrowserThreadBundle thread_bundle_;
+  media::ScopedAudioManagerPtr audio_manager_;
+  StrictMock<MockRenderer> renderer_;
+  scoped_refptr<AudioInputRendererHost> airh_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AudioInputRendererHostTest);
+};
+
+// Checks that a controller is created and a reply is sent when creating a
+// stream.
+TEST_F(AudioInputRendererHostTest, CreateWithDefaultDevice) {
+  int session_id =
+      Open("Default device", media::AudioDeviceDescription::kDefaultDeviceId);
+
+  EXPECT_CALL(renderer_,
+              NotifyStreamCreated(kStreamId, _, _, _, kSharedMemoryCount));
+  EXPECT_CALL(controller_factory_, ControllerCreated());
+
+  airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
+      kStreamId, kRenderFrameId, session_id, DefaultConfig()));
+
+  base::RunLoop().RunUntilIdle();
+  EXPECT_CALL(*controller_factory_.controller(0), Close(_));
+}
+
+// If authorization hasn't been granted, only reply with and error and do
+// nothing else.
+TEST_F(AudioInputRendererHostTest, CreateWithoutAuthorization_Error) {
+  EXPECT_CALL(renderer_,
+              NotifyStreamStateChanged(
+                  kStreamId, media::AUDIO_INPUT_IPC_DELEGATE_STATE_ERROR));
+
+  int session_id = 0;
+  airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
+      kStreamId, kRenderFrameId, session_id, DefaultConfig()));
+  base::RunLoop().RunUntilIdle();
+}
+
+// Like CreateWithDefaultDevice but with a nondefault device.
+TEST_F(AudioInputRendererHostTest, CreateWithNonDefaultDevice) {
+  int session_id = Open("Nondefault device", GetRawNondefaultId());
+
+  EXPECT_CALL(renderer_,
+              NotifyStreamCreated(kStreamId, _, _, _, kSharedMemoryCount));
+  EXPECT_CALL(controller_factory_, ControllerCreated());
+
+  airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
+      kStreamId, kRenderFrameId, session_id, DefaultConfig()));
+
+  base::RunLoop().RunUntilIdle();
+  EXPECT_CALL(*controller_factory_.controller(0), Close(_));
+}
+
+// Checks that stream is started when calling record.
+TEST_F(AudioInputRendererHostTest, CreateRecordClose) {
+  int session_id =
+      Open("Default device", media::AudioDeviceDescription::kDefaultDeviceId);
+
+  EXPECT_CALL(renderer_,
+              NotifyStreamCreated(kStreamId, _, _, _, kSharedMemoryCount));
+  EXPECT_CALL(controller_factory_, ControllerCreated());
+
+  airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
+      kStreamId, kRenderFrameId, session_id, DefaultConfig()));
+  base::RunLoop().RunUntilIdle();
+
+  EXPECT_CALL(*controller_factory_.controller(0), Record());
+  EXPECT_CALL(*controller_factory_.controller(0), Close(_));
+
+  airh_->OnMessageReceived(AudioInputHostMsg_RecordStream(kStreamId));
+  base::RunLoop().RunUntilIdle();
+  airh_->OnMessageReceived(AudioInputHostMsg_CloseStream(kStreamId));
+  base::RunLoop().RunUntilIdle();
+}
+
+// In addition to the above, also check that a SetVolume message is propagated
+// to the controller.
+TEST_F(AudioInputRendererHostTest, CreateSetVolumeRecordClose) {
+  int session_id =
+      Open("Default device", media::AudioDeviceDescription::kDefaultDeviceId);
+
+  EXPECT_CALL(renderer_,
+              NotifyStreamCreated(kStreamId, _, _, _, kSharedMemoryCount));
+  EXPECT_CALL(controller_factory_, ControllerCreated());
+
+  airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
+      kStreamId, kRenderFrameId, session_id, DefaultConfig()));
+  base::RunLoop().RunUntilIdle();
+
+  EXPECT_CALL(*controller_factory_.controller(0), SetVolume(0.5));
+  EXPECT_CALL(*controller_factory_.controller(0), Record());
+  EXPECT_CALL(*controller_factory_.controller(0), Close(_));
+
+  airh_->OnMessageReceived(AudioInputHostMsg_SetVolume(kStreamId, 0.5));
+  airh_->OnMessageReceived(AudioInputHostMsg_RecordStream(kStreamId));
+  airh_->OnMessageReceived(AudioInputHostMsg_CloseStream(kStreamId));
+
+  base::RunLoop().RunUntilIdle();
+}
+
+// Check that a too large volume is treated like a bad message and doesn't
+// reach the controller.
+TEST_F(AudioInputRendererHostTest, SetVolumeTooLarge_BadMessage) {
+  int session_id =
+      Open("Default device", media::AudioDeviceDescription::kDefaultDeviceId);
+
+  EXPECT_CALL(renderer_,
+              NotifyStreamCreated(kStreamId, _, _, _, kSharedMemoryCount));
+  EXPECT_CALL(controller_factory_, ControllerCreated());
+
+  airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
+      kStreamId, kRenderFrameId, session_id, DefaultConfig()));
+  base::RunLoop().RunUntilIdle();
+
+  EXPECT_CALL(*controller_factory_.controller(0), Close(_));
+  EXPECT_CALL(renderer_, WasShutDown());
+
+  airh_->OnMessageReceived(AudioInputHostMsg_SetVolume(kStreamId, 5));
+
+  base::RunLoop().RunUntilIdle();
+}
+
+// Like above.
+TEST_F(AudioInputRendererHostTest, SetVolumeNegative_BadMessage) {
+  int session_id =
+      Open("Default device", media::AudioDeviceDescription::kDefaultDeviceId);
+
+  EXPECT_CALL(renderer_,
+              NotifyStreamCreated(kStreamId, _, _, _, kSharedMemoryCount));
+  EXPECT_CALL(controller_factory_, ControllerCreated());
+
+  airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
+      kStreamId, kRenderFrameId, session_id, DefaultConfig()));
+  base::RunLoop().RunUntilIdle();
+
+  EXPECT_CALL(*controller_factory_.controller(0), Close(_));
+  EXPECT_CALL(renderer_, WasShutDown());
+
+  airh_->OnMessageReceived(AudioInputHostMsg_SetVolume(kStreamId, -0.5));
+
+  base::RunLoop().RunUntilIdle();
+}
+
+// Checks that a stream_id cannot be reused.
+TEST_F(AudioInputRendererHostTest, CreateTwice_Error) {
+  int session_id =
+      Open("Default device", media::AudioDeviceDescription::kDefaultDeviceId);
+
+  EXPECT_CALL(renderer_,
+              NotifyStreamCreated(kStreamId, _, _, _, kSharedMemoryCount));
+  EXPECT_CALL(renderer_,
+              NotifyStreamStateChanged(
+                  kStreamId, media::AUDIO_INPUT_IPC_DELEGATE_STATE_ERROR));
+  EXPECT_CALL(controller_factory_, ControllerCreated());
+
+  airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
+      kStreamId, kRenderFrameId, session_id, DefaultConfig()));
+  airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
+      kStreamId, kRenderFrameId, session_id, DefaultConfig()));
+  base::RunLoop().RunUntilIdle();
+
+  EXPECT_CALL(*controller_factory_.controller(0), Close(_));
+}
+
+// Checks that when two streams are created, messages are routed to the correct
+// stream. Also checks that when enabling debug recording, the streams get
+// different file names.
+TEST_F(AudioInputRendererHostTest, TwoStreams) {
+  int session_id =
+      Open("Default device", media::AudioDeviceDescription::kDefaultDeviceId);
+
+  EXPECT_CALL(renderer_,
+              NotifyStreamCreated(kStreamId, _, _, _, kSharedMemoryCount));
+  EXPECT_CALL(renderer_,
+              NotifyStreamCreated(kStreamId + 1, _, _, _, kSharedMemoryCount));
+  EXPECT_CALL(controller_factory_, ControllerCreated()).Times(2);
+
+  airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
+      kStreamId, kRenderFrameId, session_id, DefaultConfig()));
+  airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
+      kStreamId + 1, kRenderFrameId, session_id, DefaultConfig()));
+  base::RunLoop().RunUntilIdle();
+
+#if BUILDFLAG(ENABLE_WEBRTC)
+  EXPECT_CALL(*controller_factory_.controller(0), EnableDebugRecording(_));
+  EXPECT_CALL(*controller_factory_.controller(1), EnableDebugRecording(_));
+
+  airh_->EnableDebugRecording(base::FilePath(kBaseFileName));
+  base::RunLoop().RunUntilIdle();
+
+  EXPECT_NE(controller_factory_.controller(0)->debug_file_name(),
+            controller_factory_.controller(1)->debug_file_name());
+  EXPECT_CALL(*controller_factory_.controller(0), DisableDebugRecording());
+  EXPECT_CALL(*controller_factory_.controller(1), DisableDebugRecording());
+
+  airh_->DisableDebugRecording();
+#endif  // ENABLE_WEBRTC
+
+  EXPECT_CALL(*controller_factory_.controller(0), Close(_));
+  EXPECT_CALL(*controller_factory_.controller(1), Close(_));
+}
+
+// Checks that the stream is properly cleaned up and a notification is sent to
+// the renderer when the stream encounters an error.
+TEST_F(AudioInputRendererHostTest, Error_ClosesController) {
+  int session_id =
+      Open("Default device", media::AudioDeviceDescription::kDefaultDeviceId);
+
+  EXPECT_CALL(renderer_,
+              NotifyStreamCreated(kStreamId, _, _, _, kSharedMemoryCount));
+  EXPECT_CALL(controller_factory_, ControllerCreated());
+
+  airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
+      kStreamId, kRenderFrameId, session_id, DefaultConfig()));
+
+  base::RunLoop().RunUntilIdle();
+  EXPECT_CALL(*controller_factory_.controller(0), Close(_));
+  EXPECT_CALL(renderer_,
+              NotifyStreamStateChanged(
+                  kStreamId, media::AUDIO_INPUT_IPC_DELEGATE_STATE_ERROR));
+
+  controller_factory_.controller(0)->handler()->OnError(
+      controller_factory_.controller(0), AudioInputController::UNKNOWN_ERROR);
+
+  // Check Close expectation before the destructor.
+  base::RunLoop().RunUntilIdle();
+  Mock::VerifyAndClear(controller_factory_.controller(0));
+}
+
+// Checks that tab capture streams can be created.
+TEST_F(AudioInputRendererHostTest, TabCaptureStream) {
+  StreamControls controls(/* request_audio */ true, /* request_video */ false);
+  controls.audio.device_id = base::StringPrintf(
+      "web-contents-media-stream://%d:%d", kRenderProcessId, kRenderFrameId);
+  controls.audio.stream_source = kMediaStreamSourceTab;
+  std::string request_label = media_stream_manager_->MakeMediaAccessRequest(
+      kRenderProcessId, kRenderFrameId, 0, controls, SecurityOrigin(),
+      base::Bind([](const MediaStreamDevices& devices,
+                    std::unique_ptr<MediaStreamUIProxy>) {}));
+  base::RunLoop().RunUntilIdle();
+  int session_id = Open("Tab capture", controls.audio.device_id);
+
+  EXPECT_CALL(renderer_,
+              NotifyStreamCreated(kStreamId, _, _, _, kSharedMemoryCount));
+  EXPECT_CALL(controller_factory_, ControllerCreated());
+
+  airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
+      kStreamId, kRenderFrameId, session_id, DefaultConfig()));
+  base::RunLoop().RunUntilIdle();
+
+  EXPECT_CALL(*controller_factory_.controller(0), Close(_));
+}
+
+}  // namespace content