Add recording capability to AudioManager, and implemented on windows using the WaveIn APIs.

media/audio/linux/audio_manager_linux.cc

-// Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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/command_line.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"
 #include "media/base/media_switches.h"
 
 
 namespace {
 
 AudioManagerLinux* g_audio_manager = NULL;
 }  // namespace
 
 // Implementation of AudioManager.
 bool AudioManagerLinux::HasAudioOutputDevices() {
   // TODO(ajwong): Make this actually query audio devices.
   return true;
 }
 
+bool AudioManagerLinux::HasAudioInputDevices() {
+  // TODO(satish): implement.
+  return false;
+}
+
+AudioInputStream* AudioManagerLinux::MakeAudioInputStream(
+    Format format,
+    int channels,
+    int sample_rate,
+    char bits_per_sample,
+    uint32 samples_per_packet) {
+  // TODO(satish): implement.
+  return NULL;
+}
+
 AudioOutputStream* AudioManagerLinux::MakeAudioOutputStream(
     Format format,
     int channels,
     int sample_rate,
     char bits_per_sample) {
   // Early return for testing hook.  Do this before checking for
   // |initialized_|.
   if (format == AudioManager::AUDIO_MOCK) {
     return FakeAudioOutputStream::MakeFakeStream();
   }
@@ skipping 59 matching lines @@
 }
 
 AudioManager* AudioManager::GetAudioManager() {
   if (!g_audio_manager) {
     g_audio_manager = new AudioManagerLinux();
     g_audio_manager->Init();
     base::AtExitManager::RegisterCallback(&DestroyAudioManagerLinux, NULL);
   }
   return g_audio_manager;
 }