Express audio delay more precisely in frames rather than milliseconds.

content/renderer/media/renderer_webaudiodevice_impl.cc

 // Copyright (c) 2012 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.
 
 #include "content/renderer/media/renderer_webaudiodevice_impl.h"
 
 #include <stddef.h>
 
 #include <string>
 
@@ skipping 82 matching lines @@
   is_using_null_audio_sink_ = false;
   is_first_buffer_after_silence_ = false;
   start_null_audio_sink_callback_.Cancel();
 }
 
 double RendererWebAudioDeviceImpl::sampleRate() {
   return params_.sample_rate();
 }
 
 int RendererWebAudioDeviceImpl::Render(media::AudioBus* dest,
-                                       uint32_t audio_delay_milliseconds,
+                                       uint32_t frames_delayed,

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

This method isn't making use of delay... should it be?

[chcunningham, 2016/02/11 21:02:52]

@dale, your thoughts?

[DaleCurtis, 2016/02/11 21:04:19]

Oh didn't realize that question was for me. +rtoy

                                        uint32_t frames_skipped) {
 #if defined(OS_ANDROID)
   if (is_first_buffer_after_silence_) {
     DCHECK(!is_using_null_audio_sink_);
     first_buffer_after_silence_->CopyTo(dest);
     is_first_buffer_after_silence_ = false;
     return dest->frames();
   }
 #endif
   // Wrap the output pointers using WebVector.
@@ skipping 46 matching lines @@
   }
 #endif
   return dest->frames();
 }
 
 void RendererWebAudioDeviceImpl::OnRenderError() {
   // TODO(crogers): implement error handling.
 }
 
 }  // namespace content