commit 43a86d270102c4cb45cbe8ab6e4d4b209e184a65
author Dale Curtis <dalecurtis@chromium.org> Fri Sep 21 23:24:23 2018
committer Commit Bot <commit-bot@chromium.org> Fri Sep 21 23:24:23 2018
tree b202f23381a49e48f740a89507d4cc9e018f9746
parent f08548e32291e294265a8e85d3b8bef69f83099a

Add demuxer level traces for Initialize, Seek, Read.

This is another core component of media, we should have trace events
to help diagnose issues in the field. This adds the following traces:
- (Chunk|FFmpeg)Demuxer::Initialize
- (Chunk|FFmpeg)Demuxer::Seek
- (AudioBuffer|VideoFrame)Stream::(Decode|Read|ReadFromDemuxerStream)
- VideoFrameStream::Prepare (for audio too, but never prepares)

This also renames the DecoderStream<AUDIO>, DecoderStream<VIDEO> traces
to use the normal names AudioBufferStream, VideoFrameStream.

BUG=879970
TEST=none
R=wolenetz, xhwang

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Change-Id: Ie9ca7474bc5684117820b219012f0455d044eabc
Reviewed-on: https://chromium-review.googlesource.com/1237573
Commit-Queue: Dale Curtis <dalecurtis@chromium.org>
Reviewed-by: Xiaohan Wang <xhwang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#593374}