Motown: Various fixes related to video playback support

services/media/framework_ffmpeg/ffmpeg_video_decoder.h

 // Copyright 2016 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.
 
 #ifndef SERVICES_MEDIA_FRAMEWORK_FFMPEG_FFMPEG_VIDEO_DECODER_H_
 #define SERVICES_MEDIA_FRAMEWORK_FFMPEG_FFMPEG_VIDEO_DECODER_H_
 
+#include "mojo/services/media/common/cpp/timeline_rate.h"
 #include "services/media/framework_ffmpeg/ffmpeg_decoder_base.h"
 
 namespace mojo {
 namespace media {
 
 // Decoder implementation employing and ffmpeg video decoder.
 // TODO(dalesat): Complete this.
 class FfmpegVideoDecoder : public FfmpegDecoderBase {
  public:
   FfmpegVideoDecoder(AvCodecContextPtr av_codec_context);
@@ skipping 30 matching lines @@
   // avcodec_decode_audio4.
   PayloadAllocator* allocator_;
 
   // Used to supply PTS for end-of-stream.
   int64_t next_pts_ = Packet::kUnknownPts;
 
   // TODO(dalesat): For investigation only...remove these three fields.
   bool first_frame_ = true;
   AVColorSpace colorspace_;
   Extent coded_size_;
+  TimelineRate frame_rate_in_frames_per_ns_;
 };
 
 }  // namespace media
 }  // namespace mojo
 
 #endif  // SERVICES_MEDIA_FRAMEWORK_FFMPEG_FFMPEG_VIDEO_DECODER_H_