Switch LiveAudio to source provider solution.

media/base/audio_hardware_config.cc

Index: media/base/audio_hardware_config.cc
diff --git a/media/base/audio_hardware_config.cc b/media/base/audio_hardware_config.cc
index d72fce7b4e234c2f225e28b528c15900dd2582d2..b0996b2a0d50036b1002640397783ba109355778 100644
--- a/media/base/audio_hardware_config.cc
+++ b/media/base/audio_hardware_config.cc
@@ -38,6 +38,11 @@ int AudioHardwareConfig::GetOutputChannels() const {
   return output_params_.channels();
 }
 
+int AudioHardwareConfig::GetInputBufferSize() const {

[tommi (sloooow) - chröme, 2013/09/06 11:20:30]

If we can avoid adding this that'd be great.  We're trying to avoid
AudioHardwareConfig at all and the sample rate + buffer sizes should already be
available for the input device.

+  AutoLock auto_lock(config_lock_);
+  return input_params_.frames_per_buffer();
+}
+
 int AudioHardwareConfig::GetInputSampleRate() const {
   AutoLock auto_lock(config_lock_);
   return input_params_.sample_rate();