AudioConverter: Express delay in frames rather than msec.

media/cast/test/fake_media_source.cc

 // Copyright 2014 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 "media/cast/test/fake_media_source.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/files/scoped_file.h"
@@ skipping 574 matching lines @@
     }
 
     if (audio_packet)
       DecodeAudio(std::move(packet));
     else
       DecodeVideo(std::move(packet));
   }
 }
 
 double FakeMediaSource::ProvideInput(media::AudioBus* output_bus,
-                                   base::TimeDelta buffer_delay) {
+                                     uint32_t frames_delayed) {
   if (audio_fifo_->frames() >= output_bus->frames()) {
     audio_fifo_->Consume(output_bus, 0, output_bus->frames());
     return 1.0;
   } else {
     LOG(WARNING) << "Not enough audio data for resampling.";
     output_bus->Zero();
     return 0.0;
   }
 }
 
@@ skipping 17 matching lines @@
 AVCodecContext* FakeMediaSource::av_audio_context() {
   return av_audio_stream()->codec;
 }
 
 AVCodecContext* FakeMediaSource::av_video_context() {
   return av_video_stream()->codec;
 }
 
 }  // namespace cast
 }  // namespace media