Refactor AudioParameters member setting.

media/audio/audio_output_device_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 <vector>
 
 #include "base/at_exit.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/memory/shared_memory.h"
@@ skipping 103 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(AudioOutputDeviceTest);
 };
 
 int AudioOutputDeviceTest::CalculateMemorySize() {
   // Calculate output memory size.
   return AudioBus::CalculateMemorySize(default_audio_parameters_);
 }
 
 AudioOutputDeviceTest::AudioOutputDeviceTest() {
-  default_audio_parameters_.Reset(
-      AudioParameters::AUDIO_PCM_LINEAR,
-      CHANNEL_LAYOUT_STEREO, 2, 48000, 16, 1024);
+  default_audio_parameters_.Reset(AudioParameters::AUDIO_PCM_LINEAR,
+                                  CHANNEL_LAYOUT_STEREO, 48000, 16, 1024);
 
   audio_output_ipc_ = new MockAudioOutputIPC();
   audio_device_ = new AudioOutputDevice(
       scoped_ptr<AudioOutputIPC>(audio_output_ipc_),
       io_loop_.task_runner());
 
   audio_device_->Initialize(default_audio_parameters_,
                             &callback_);
 
   io_loop_.RunUntilIdle();
@@ skipping 143 matching lines @@
 // Switch the output device
 TEST_P(AudioOutputDeviceTest, SwitchOutputDevice) {
   StartAudioDevice();
   SwitchOutputDevice();
   StopAudioDevice();
 }
 
 INSTANTIATE_TEST_CASE_P(Render, AudioOutputDeviceTest, Values(false));
 
 }  // namespace media.