FOR TESTING ONLY: Enable ffvp9 inside of Chrome.

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 5fdd9c05792e86072afb2ab1328e977ca0f745b6..433cbf93830f39a20da149af5c3d9e913f443498 100644
--- a/media/filters/ffmpeg_demuxer.cc
+++ b/media/filters/ffmpeg_demuxer.cc
@@ -348,9 +348,12 @@ void FFmpegDemuxerStream::EnqueuePacket(ScopedAVPacket packet) {
     // Fixing chained ogg is non-trivial, so for now just reuse the last good
     // timestamp.  The decoder will rewrite the timestamps to be sample accurate
     // later.  See http://crbug.com/396864.
-    if (fixup_negative_ogg_timestamps_ &&
-        (buffer->timestamp() == kNoTimestamp() ||
-         buffer->timestamp() < last_packet_timestamp_)) {
+    //
+    // TODO(dalecurtis): ffvp9 packet parser generates AV_NOPTS packets when a
+    // superframe is split, so adjust timestamps here...
+    if ((fixup_negative_ogg_timestamps_ ||
+         buffer->timestamp() == kNoTimestamp()) &&
+        (buffer->timestamp() < last_packet_timestamp_)) {
       buffer->set_timestamp(last_packet_timestamp_ +
                             (last_packet_duration_ != kNoTimestamp()
                                  ? last_packet_duration_