Modifies AudioInputCallback::OnData and use media::AudioBus instead of plain byte vector

media/audio/pulse/audio_manager_pulse.cc

Index: media/audio/pulse/audio_manager_pulse.cc
diff --git a/media/audio/pulse/audio_manager_pulse.cc b/media/audio/pulse/audio_manager_pulse.cc
index 412f2a421b0f46dd6375bf7ab3d7d17d051484fe..c6983279d9330d20814fc426c735aff2e8fe1304 100644
--- a/media/audio/pulse/audio_manager_pulse.cc
+++ b/media/audio/pulse/audio_manager_pulse.cc
@@ -40,7 +40,7 @@ static const int kMinimumOutputBufferSize = 512;
 static const int kMaximumOutputBufferSize = 8192;
 
 // Default input buffer size.
-static const int kDefaultInputBufferSize = 1024;
+static const int kDefaultInputBufferSize = 512;
 
 static const base::FilePath::CharType kPulseLib[] =
     FILE_PATH_LITERAL("libpulse.so.0");
@@ -61,10 +61,12 @@ AudioManagerPulse::AudioManagerPulse(AudioLogFactory* audio_log_factory)
       input_context_(NULL),
       devices_(NULL),
       native_input_sample_rate_(0) {
+  DVLOG(1) << __FUNCTION__;
   SetMaxOutputStreamsAllowed(kMaxOutputStreams);
 }
 
 AudioManagerPulse::~AudioManagerPulse() {
+  DVLOG(1) << __FUNCTION__;
   Shutdown();
 
   // The Pulse objects are the last things to be destroyed since Shutdown()
@@ -128,6 +130,7 @@ void AudioManagerPulse::GetAudioOutputDeviceNames(
 
 AudioParameters AudioManagerPulse::GetInputStreamParameters(
     const std::string& device_id) {
+  DVLOG(1) << "AudioManagerPulse::GetInputStreamParameters";
   int user_buffer_size = GetUserBufferSize();
   int buffer_size = user_buffer_size ?
       user_buffer_size : kDefaultInputBufferSize;
@@ -168,6 +171,7 @@ AudioInputStream* AudioManagerPulse::MakeLowLatencyInputStream(
 AudioParameters AudioManagerPulse::GetPreferredOutputStreamParameters(
     const std::string& output_device_id,
     const AudioParameters& input_params) {
+  DVLOG(1) << "AudioManagerPulse::GetPreferredOutputStreamParameters";
   // TODO(tommi): Support |output_device_id|.
   VLOG_IF(0, !output_device_id.empty()) << "Not implemented!";