AudioConverter: Express delay in frames rather than msec.

media/audio/simple_sources.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.
 // MSVC++ requires this to be set before any other includes to get M_PI.
 #define _USE_MATH_DEFINES
 
 #include "media/audio/simple_sources.h"
 
 #include <stddef.h>
 
@@ skipping 205 matching lines @@
   // Stop playing if we've played out the whole file.
   if (wav_audio_handler_->AtEnd(wav_file_read_pos_))
     return 0;
 
   // This pulls data from ProvideInput.
   file_audio_converter_->Convert(audio_bus);
   return audio_bus->frames();
 }
 
 double FileSource::ProvideInput(AudioBus* audio_bus_into_converter,
-                                base::TimeDelta buffer_delay) {
+                                uint32_t frames_delayed) {
   // Unfilled frames will be zeroed by CopyTo.
   size_t bytes_written;
   wav_audio_handler_->CopyTo(audio_bus_into_converter, wav_file_read_pos_,
                              &bytes_written);
   wav_file_read_pos_ += bytes_written;
   return 1.0;
 }
 
 void FileSource::OnError(AudioOutputStream* stream) {
 }
@@ skipping 65 matching lines @@
 }
 
 void BeepingSource::OnError(AudioOutputStream* stream) {
 }
 
 void BeepingSource::BeepOnce() {
   g_beep_context.Pointer()->SetBeepOnce(true);
 }
 
 }  // namespace media