commit 38370805b498c4d48646b7d4f1a521d847343df3
author Chris Cunningham <chcunningham@chromium.org> Fri Feb 02 02:26:01 2018
committer Commit Bot <commit-bot@chromium.org> Fri Feb 02 02:26:01 2018
tree 7adbd93a5395b815717c15c0179a848be9126b3f
parent 15ac173128e4e22c58e8edfc956ff4c99cca5460

Clean up proprietary codec checks/expectations in LayoutTests

This is mostly a reland of
https://chromium-review.googlesource.com/c/chromium/src/+/807604
with some improvements and now unblocked by changes to bots.

Media layout tests need repair
1) Many tests check for proprietary codec support by only asking about
   "video/mp4" without specifying a codec. This check is busted
   because MP4 is no longer considered proprietary while codecs like
   H264 and AAC still are. We currently claim "video/mp4" is entirely
   unsupported via test hacks to avoid breaking those checks.
2) Some MSE tests focus on MP4 with H264. While many bots now have the
   needed codecs, we artificially remove their support via test-only
   hacks in order to keep expectations the same for all runners.

This CL does the following
1) Remove incomplete checks for "video/mp4" - instead hardcode use of
   the .ogv files (preserving the existing behavior).
2) Update MSE mp4/h264 test expectations to PASS|FAIL. This gives us
   some coverage on bots with proprietary codecs while allowing failure
   on bots that lack codecs.
3) Remove test hacks that artificially reduce codec support.

It is also not a goal to make LayoutTests try all the supported codecs.
That is covered by unit/integration tests.

Due to 3) above, some external/wpt/media-source tests now fail because
they select mp4. Fixing these failures is tracked in Issue 794338.

Bug: 327115,746579,787575,568704,794338,807110
Change-Id: I05565d7ca9d8d5b12391785888701723810671d5
Reviewed-on: https://chromium-review.googlesource.com/849641
Commit-Queue: Chrome Cunningham <chcunningham@chromium.org>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Reviewed-by: Peter Beverloo <peter@chromium.org>
Reviewed-by: Matthew Wolenetz <wolenetz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#533924}