Change default audio device from "plug:default" to "default".

media/audio/linux/audio_manager_linux.cc

 // Copyright (c) 2006-2009 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/linux/audio_manager_linux.h"
 
 #include "base/at_exit.h"
 #include "base/logging.h"
 #include "media/audio/linux/alsa_output.h"
 
 namespace {
 AudioManagerLinux* g_audio_manager = NULL;
 }  // namespace
 
 // Implementation of AudioManager.
 bool AudioManagerLinux::HasAudioDevices() {
   // TODO(ajwong): Make this actually query audio devices.
   return true;
 }
 
 AudioOutputStream* AudioManagerLinux::MakeAudioStream(Format format,
                                                       int channels,
                                                       int sample_rate,
                                                       char bits_per_sample) {
-  // TODO(ajwong): Do we want to be able to configure the device? plug:default
+  // TODO(ajwong): Do we want to be able to configure the device? default
   // should work correctly for all mono/stereo, but not surround, which needs
   // surround40, surround51, etc.
   //
   // http://0pointer.de/blog/projects/guide-to-sound-apis.html
   AlsaPCMOutputStream* stream =
       new AlsaPCMOutputStream(AlsaPCMOutputStream::kDefaultDevice,
                               100 /* 100ms minimal buffer */,
                               format, channels, sample_rate, bits_per_sample);
   return stream;
 }
@@ skipping 26 matching lines @@
   g_audio_manager = NULL;
 }
 
 AudioManager* AudioManager::GetAudioManager() {
   if (!g_audio_manager) {
     g_audio_manager = new AudioManagerLinux();
     base::AtExitManager::RegisterCallback(&DestroyAudioManagerLinux, NULL);
   }
   return g_audio_manager;
 }