AudioConverter: Express delay in frames rather than msec.

media/cast/test/fake_media_source.h

 // 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.
 
 // A fake media source that generates video and audio frames to a cast
 // sender.
 // This class can transcode a WebM file using FFmpeg. It can also
 // generate an animation and audio of fixed frequency.
 
 #ifndef MEDIA_CAST_TEST_FAKE_MEDIA_SOURCE_H_
@@ skipping 90 matching lines @@
   void Rewind();
 
   // Call FFmpeg to fetch one packet.
   ScopedAVPacket DemuxOnePacket(bool* audio);
 
   void DecodeAudio(ScopedAVPacket packet);
   void DecodeVideo(ScopedAVPacket packet);
   void Decode(bool decode_audio);
 
   // media::AudioConverter::InputCallback implementation.
-  double ProvideInput(media::AudioBus* output_bus, base::TimeDelta buffer_delay)
-      final;
+  double ProvideInput(media::AudioBus* output_bus,
+                      uint32_t frames_delayed) final;
 
   AVStream* av_audio_stream();
   AVStream* av_video_stream();
   AVCodecContext* av_audio_context();
   AVCodecContext* av_video_context();
 
   const scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   const media::AudioParameters output_audio_params_;
   const VideoSenderConfig video_config_;
   const bool keep_frames_;
@@ skipping 46 matching lines @@
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<FakeMediaSource> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeMediaSource);
 };
 
 }  // namespace cast
 }  // namespace media
 
 #endif // MEDIA_CAST_TEST_FAKE_MEDIA_SOURCE_H_