Pass task runners to AudioManager constructor.

content/browser/renderer_host/media/audio_input_device_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/location.h"
@@ skipping 47 matching lines @@
 class MAYBE_AudioInputDeviceManagerTest : public testing::Test {
  public:
   MAYBE_AudioInputDeviceManagerTest() {}
 
  protected:
   void SetUp() override {
     // The test must run on Browser::IO.
     message_loop_.reset(new base::MessageLoopForIO);
     io_thread_.reset(new BrowserThreadImpl(BrowserThread::IO,
                                            message_loop_.get()));
-    audio_manager_.reset(media::AudioManager::CreateForTesting());
-    // Wait for audio thread initialization to complete.  Otherwise the
-    // enumeration type may not have been set yet.
-    base::WaitableEvent event(false, false);
-    audio_manager_->GetTaskRunner()->PostTask(FROM_HERE, base::Bind(
-        &base::WaitableEvent::Signal, base::Unretained(&event)));
-    event.Wait();
+    audio_manager_ =
+        media::AudioManager::CreateForTesting(message_loop_->task_runner());
     manager_ = new AudioInputDeviceManager(audio_manager_.get());
     manager_->UseFakeDevice();
     audio_input_listener_.reset(new MockAudioInputDeviceManagerListener());
     manager_->Register(audio_input_listener_.get(),
                        message_loop_->task_runner().get());
 
     // Gets the enumerated device list from the AudioInputDeviceManager.
     manager_->EnumerateDevices(MEDIA_DEVICE_AUDIO_CAPTURE);
     EXPECT_CALL(*audio_input_listener_,
                 DevicesEnumerated(MEDIA_DEVICE_AUDIO_CAPTURE, _))
         .Times(1)
         .WillOnce(SaveArg<1>(&devices_));
 
     // Wait until we get the list.
     message_loop_->RunUntilIdle();
   }
 
   void TearDown() override {
     manager_->Unregister();
     io_thread_.reset();
   }
 
   scoped_ptr<base::MessageLoop> message_loop_;
   scoped_ptr<BrowserThreadImpl> io_thread_;
   scoped_refptr<AudioInputDeviceManager> manager_;
   scoped_ptr<MockAudioInputDeviceManagerListener> audio_input_listener_;
-  scoped_ptr<media::AudioManager> audio_manager_;
+  media::ScopedAudioManagerPtr audio_manager_;
   StreamDeviceInfoArray devices_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MAYBE_AudioInputDeviceManagerTest);
 };
 
 // Opens and closes the devices.
 TEST_F(MAYBE_AudioInputDeviceManagerTest, OpenAndCloseDevice) {
 
   ASSERT_FALSE(devices_.empty());
@@ skipping 172 matching lines @@
   DCHECK(!info);
 
   manager_->Close(session_id);
   EXPECT_CALL(*audio_input_listener_,
               Closed(MEDIA_DEVICE_AUDIO_CAPTURE, session_id))
       .Times(1);
   message_loop_->RunUntilIdle();
 }
 
 }  // namespace content