media: Continue aborting FFMpegDemuxerStream::Read() calls until Seek().

media/filters/ffmpeg_demuxer.cc

Index: media/filters/ffmpeg_demuxer.cc
diff --git a/media/filters/ffmpeg_demuxer.cc b/media/filters/ffmpeg_demuxer.cc
index 093e4f539b13847a1f7f6beb0e140674af037f69..eab193e465a4188e0e1fba6c9c2ae4735a78e78a 100644
--- a/media/filters/ffmpeg_demuxer.cc
+++ b/media/filters/ffmpeg_demuxer.cc
@@ -275,6 +275,7 @@ FFmpegDemuxerStream::FFmpegDemuxerStream(
       video_rotation_(VIDEO_ROTATION_0),
       is_enabled_(true),
       waiting_for_keyframe_(false),
+      aborted_(false),
       fixup_negative_timestamps_(false) {
   DCHECK(demuxer_);
 
@@ -591,9 +592,11 @@ void FFmpegDemuxerStream::FlushBuffers() {
   end_of_stream_ = false;
   last_packet_timestamp_ = kNoTimestamp;
   last_packet_duration_ = kNoTimestamp;
+  aborted_ = false;
 }
 
 void FFmpegDemuxerStream::Abort() {
+  aborted_ = true;
   if (!read_cb_.is_null())
     base::ResetAndReturn(&read_cb_).Run(DemuxerStream::kAborted, nullptr);
 }
@@ -641,6 +644,11 @@ void FFmpegDemuxerStream::Read(const ReadCB& read_cb) {
     return;
   }
 
+  if (aborted_) {
+    base::ResetAndReturn(&read_cb_).Run(kAborted, nullptr);
+    return;
+  }
+
   SatisfyPendingRead();
 }