Add AudioManager::GetAudioOutputDeviceNames and implement for pulseaudio.

media/audio/audio_manager_base.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_manager_base.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 291 matching lines @@
   dispatcher_params->dispatcher = dispatcher;
   output_dispatchers_.push_back(dispatcher_params);
   return new AudioOutputProxy(dispatcher.get());
 #endif  // defined(OS_IOS)
 }
 
 void AudioManagerBase::ShowAudioInputSettings() {
 }
 
 void AudioManagerBase::GetAudioInputDeviceNames(
-    media::AudioDeviceNames* device_names) {
+    AudioDeviceNames* device_names) {
+}
+
+void AudioManagerBase::GetAudioOutputDeviceNames(
+    AudioDeviceNames* device_names) {
+  // TODO(joi): Remove this and keep pure virtual once implemented everywhere.
+  NOTIMPLEMENTED();
 }
 
 void AudioManagerBase::ReleaseOutputStream(AudioOutputStream* stream) {
   DCHECK(stream);
   // TODO(xians) : Have a clearer destruction path for the AudioOutputStream.
   // For example, pass the ownership to AudioManager so it can delete the
   // streams.
   --num_output_streams_;
   delete stream;
 }
@@ skipping 97 matching lines @@
   NOTIMPLEMENTED();
   return "";
 }
 
 std::string AudioManagerBase::GetDefaultOutputDeviceID() {
   NOTIMPLEMENTED();
   return "";
 }
 
 }  // namespace media