sync the openbsd audio code with linux

media/audio/openbsd/audio_manager_openbsd.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/openbsd/audio_manager_openbsd.h"
 
 #include "base/command_line.h"
 #include "base/stl_util.h"
 #include "media/audio/audio_output_dispatcher.h"
 #if defined(USE_PULSEAUDIO)
@@ skipping 71 matching lines @@
 
 AudioInputStream* AudioManagerOpenBSD::MakeLowLatencyInputStream(
     const AudioParameters& params, const std::string& device_id) {
   DCHECK_EQ(AudioParameters::AUDIO_PCM_LOW_LATENCY, params.format);
   NOTIMPLEMENTED();
   return NULL;
 }
 
 AudioOutputStream* AudioManagerOpenBSD::MakeOutputStream(
     const AudioParameters& params) {
-  if (!initialized()) {
-    return NULL;
-  }
-
 #if defined(USE_PULSEAUDIO)
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kUsePulseAudio)) {
     return new PulseAudioOutputStream(params, this);
   }
 #endif
 
   NOTIMPLEMENTED();
   return NULL;
 }
 
 // static
 AudioManager* CreateAudioManager() {
   return new AudioManagerOpenBSD();
 }