Make AudioDebugFileWriter create its own file worker thread.

media/audio/audio_input_controller_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 "media/audio/audio_input_controller.h"
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
@@ skipping 110 matching lines @@
   MockAudioInputControllerEventHandler event_handler;
   MockSyncWriter sync_writer;
   scoped_refptr<AudioInputController> controller;
 
   AudioParameters params(AudioParameters::AUDIO_FAKE, kChannelLayout,
                          kSampleRate, kBitsPerSample, kSamplesPerPacket);
 
   SuspendAudioThread();
   controller = AudioInputController::Create(
       audio_manager_.get(), &event_handler, &sync_writer, nullptr, params,
-      AudioDeviceDescription::kDefaultDeviceId, false, audio_task_runner());
+      AudioDeviceDescription::kDefaultDeviceId, false);
   ASSERT_TRUE(controller.get());
   EXPECT_CALL(event_handler, OnCreated(controller.get())).Times(Exactly(1));
   EXPECT_CALL(event_handler, OnLog(controller.get(), _));
   EXPECT_CALL(sync_writer, Close()).Times(Exactly(1));
   ResumeAudioThread();
 
   CloseAudioController(controller.get());
 }
 
 // Test a normal call sequence of create, record and close.
@@ skipping 14 matching lines @@
 
   EXPECT_CALL(event_handler, OnLog(_, _)).Times(AnyNumber());
   EXPECT_CALL(sync_writer, Close()).Times(Exactly(1));
 
   AudioParameters params(AudioParameters::AUDIO_FAKE, kChannelLayout,
                          kSampleRate, kBitsPerSample, kSamplesPerPacket);
 
   // Creating the AudioInputController should render an OnCreated() call.
   scoped_refptr<AudioInputController> controller = AudioInputController::Create(
       audio_manager_.get(), &event_handler, &sync_writer, nullptr, params,
-      AudioDeviceDescription::kDefaultDeviceId, false, audio_task_runner());
+      AudioDeviceDescription::kDefaultDeviceId, false);
   ASSERT_TRUE(controller.get());
 
   controller->Record();
 
   // Record and wait until ten Write() callbacks are received.
   base::RunLoop().Run();
   CloseAudioController(controller.get());
 }
 
 // Test that AudioInputController rejects insanely large packet sizes.
 TEST_F(AudioInputControllerTest, SamplesPerPacketTooLarge) {
   // Create an audio device with a very large packet size.
   MockAudioInputControllerEventHandler event_handler;
   MockSyncWriter sync_writer;
 
   // OnCreated() shall not be called in this test.
   EXPECT_CALL(event_handler, OnCreated(NotNull())).Times(Exactly(0));
 
   AudioParameters params(AudioParameters::AUDIO_FAKE,
                          kChannelLayout,
                          kSampleRate,
                          kBitsPerSample,
                          kSamplesPerPacket * 1000);
   scoped_refptr<AudioInputController> controller = AudioInputController::Create(
       audio_manager_.get(), &event_handler, &sync_writer, nullptr, params,
-      AudioDeviceDescription::kDefaultDeviceId, false, audio_task_runner());
+      AudioDeviceDescription::kDefaultDeviceId, false);
   ASSERT_FALSE(controller.get());
 }
 
 // Test calling AudioInputController::Close multiple times.
 TEST_F(AudioInputControllerTest, CloseTwice) {
   MockAudioInputControllerEventHandler event_handler;
   MockSyncWriter sync_writer;
 
   // OnCreated() will be called only once.
   EXPECT_CALL(event_handler, OnCreated(NotNull())).Times(Exactly(1));
   EXPECT_CALL(event_handler, OnLog(_, _)).Times(AnyNumber());
   // This callback should still only be called once.
   EXPECT_CALL(sync_writer, Close()).Times(Exactly(1));
 
   AudioParameters params(AudioParameters::AUDIO_FAKE,
                          kChannelLayout,
                          kSampleRate,
                          kBitsPerSample,
                          kSamplesPerPacket);
   scoped_refptr<AudioInputController> controller = AudioInputController::Create(
       audio_manager_.get(), &event_handler, &sync_writer, nullptr, params,
-      AudioDeviceDescription::kDefaultDeviceId, false, audio_task_runner());
+      AudioDeviceDescription::kDefaultDeviceId, false);
   ASSERT_TRUE(controller.get());
 
   controller->Record();
 
   controller->Close(base::MessageLoop::QuitWhenIdleClosure());
   base::RunLoop().Run();
 
   controller->Close(base::MessageLoop::QuitWhenIdleClosure());
   base::RunLoop().Run();
 }
 
 }  // namespace media