Express audio delay more precisely in frames rather than milliseconds.

media/audio/audio_input_device.cc

Index: media/audio/audio_input_device.cc
diff --git a/media/audio/audio_input_device.cc b/media/audio/audio_input_device.cc
index 52017f248a3580661d2ba4dd4c0e76797f8ff49c..f5e9ae6c635765139e43a579cb9e15b47bb7ef00 100644
--- a/media/audio/audio_input_device.cc
+++ b/media/audio/audio_input_device.cc
@@ -340,8 +340,7 @@ void AudioInputDevice::AudioThreadCallback::Process(uint32_t pending_data) {
   capture_callback_->Capture(
       audio_bus,
       buffer->params.hardware_delay_bytes / bytes_per_ms_,  // Delay in ms

[chcunningham, 2016/02/11 01:25:42]

Another API expecing msec. Everyone OK to change this one later? Will file a bug
to track it.

[Henrik Grunell, 2016/02/12 17:47:01]

sgtm

[chcunningham, 2016/02/17 01:56:51]

Filed 587291. Added comment.

-      buffer->params.volume,
-      buffer->params.key_pressed);
+      buffer->params.volume, buffer->params.key_pressed);
 
   if (++current_segment_id_ >= total_segments_)
     current_segment_id_ = 0;