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

media/audio/linux/audio_manager_linux.cc

Index: media/audio/linux/audio_manager_linux.cc
diff --git a/media/audio/linux/audio_manager_linux.cc b/media/audio/linux/audio_manager_linux.cc
index c3cf94276a7017151c567fa4775e15013c89de74..6822c8b00d8c716b6f41f2e0232559459cab42cc 100644
--- a/media/audio/linux/audio_manager_linux.cc
+++ b/media/audio/linux/audio_manager_linux.cc
@@ -1,4 +1,4 @@
-// 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.
 
@@ -24,6 +24,21 @@ bool AudioManagerLinux::HasAudioOutputDevices() {
   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,