Continue with the FreeBSD port - this version builds and links, though...

media/audio/freebsd/audio_manager_freebsd.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/freebsd/audio_manager_freebsd.h"
+
+#include "base/at_exit.h"
+#include "base/logging.h"
+//#include "media/audio/fake_audio_output_stream.h"
+//#include "media/audio/linux/alsa_output.h"
+//#include "media/audio/linux/alsa_wrapper.h"
+
+namespace {
+AudioManagerFreeBSD* g_audio_manager = NULL;
+}  // namespace
+
+// Implementation of AudioManager.
+bool AudioManagerFreeBSD::HasAudioDevices() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+AudioOutputStream* AudioManagerFreeBSD::MakeAudioStream(Format format,
+                                                        int channels,
+                                                        int sample_rate,
+                                                        char bits_per_sample) {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+AudioManagerFreeBSD::AudioManagerFreeBSD() {
+}
+
+AudioManagerFreeBSD::~AudioManagerFreeBSD() {
+}
+
+void AudioManagerFreeBSD::Init() {
+}
+
+void AudioManagerFreeBSD::MuteAll() {
+  NOTIMPLEMENTED();
+}
+
+void AudioManagerFreeBSD::UnMuteAll() {
+  NOTIMPLEMENTED();
+}
+
+// TODO(ajwong): Collapse this with the windows version.
+void DestroyAudioManagerFreeBSD(void* not_used) {
+  delete g_audio_manager;
+  g_audio_manager = NULL;
+}
+
+AudioManager* AudioManager::GetAudioManager() {
+  if (!g_audio_manager) {
+    g_audio_manager = new AudioManagerFreeBSD();
+    g_audio_manager->Init();
+    base::AtExitManager::RegisterCallback(&DestroyAudioManagerFreeBSD, NULL);
+  }
+  return g_audio_manager;
+}