[Chromoting] Update comments in AudioCapturerWin

remoting/host/audio_capturer_win.cc

Index: remoting/host/audio_capturer_win.cc
diff --git a/remoting/host/audio_capturer_win.cc b/remoting/host/audio_capturer_win.cc
index 3dd6dc7b7c1d2226e74742b425c1d661cd86b8c1..6cc2a3097246a9b21d95df04cedf1f668d9dfea1 100644
--- a/remoting/host/audio_capturer_win.cc
+++ b/remoting/host/audio_capturer_win.cc
@@ -274,7 +274,7 @@ void AudioCapturerWin::DoCapture() {
       packet->set_bytes_per_sample(AudioPacket::BYTES_PER_SAMPLE_2);
       // Only the count of channels is taken into account now, we should also
       // consider dwChannelMask.
-      // TODO(zijiehe): Support also layouts.
+      // TODO(zijiehe): Support various layouts of speakers.

[Sergey Ulanov, 2017/06/12 23:59:18]

This TODO is confusing since technically the current code works with various
speaker layouts, it just doesn't map correctly all them to media::ChannelLayout
when downmixing.
Maybe rephrase it as "Convert dwChannelMask to layout and pass it to AudioPump,
so the stream can be downmixed properly, accounting for the actual speaker
layout, not just number of channels."

[Hzj_jie, 2017/06/13 01:45:46]

Done.

       packet->set_channels(static_cast<AudioPacket::Channels>(
           wave_format_ex_->nChannels));