AudioConverter: Express delay in frames rather than msec.

content/renderer/media/speech_recognition_audio_sink.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 "content/renderer/media/speech_recognition_audio_sink.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/logging.h"
@@ skipping 144 matching lines @@
     DVLOG(1) << "Failed sending buffer index to peer";
     // We have discarded this buffer, but could still recover on the next one.
     return;
   }
 
   // Count the sent buffer. We expect the peer to do the same on their end.
   ++buffer_index_;
 }
 
 double SpeechRecognitionAudioSink::ProvideInput(media::AudioBus* audio_bus,
-                                                base::TimeDelta buffer_delay) {
+                                                uint32_t frames_delayed) {
   DCHECK(capture_thread_checker_.CalledOnValidThread());
   if (fifo_->frames() >= audio_bus->frames())
     fifo_->Consume(audio_bus, 0, audio_bus->frames());
   else
     audio_bus->Zero();
 
   // Return volume greater than zero to indicate we have more data.
   return 1.0;
 }
 
 media::AudioInputBuffer*
 SpeechRecognitionAudioSink::GetAudioInputBuffer() const {
   DCHECK(capture_thread_checker_.CalledOnValidThread());
   DCHECK(shared_memory_.memory());
   return static_cast<media::AudioInputBuffer*>(shared_memory_.memory());
 }
 
 }  // namespace content