commit d23b32b0887bc14556a9c932c674217cea624931
author liberato@chromium.org <liberato@chromium.org> Wed Mar 20 16:42:36 2019
committer Commit Bot <commit-bot@chromium.org> Wed Mar 20 16:42:36 2019
tree 87eeab9a968350a4844750a98258baa306680914
parent ab7661974526a368aed3f7a058a2db62dbf358af

Use origin as MediaCapabilities feature.

This CL somewhat hackily plumbs the (hashed) origin from the render
frame to the LearningHelper.

What should happen, instead, is this:

 - LearningTaskController is created per frame.
 - LearningTaskController has a FeatureProvider that memorizes the
   frame's origin.

However, since LearningHelper is created per-context, there's no
easy way to get the frame into its feature provider.  We could
plumb a separate feature provider per frame, I suppose, and let
the VideoDecodeStatsRecoder handle the lifetime, but that requires
more changes than this.

If it turns out that origin is actually useful, then we can use
per-frame LearningTaskControllers more properly once they're done.

Change-Id: I440dc5090c690865716fff5ca9a521a12e474083
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1521448
Reviewed-by: Christian Dullweber <dullweber@chromium.org>
Reviewed-by: Chrome Cunningham <chcunningham@chromium.org>
Reviewed-by: Bo <boliu@chromium.org>
Commit-Queue: Frank Liberato <liberato@chromium.org>
Cr-Commit-Position: refs/heads/master@{#642551}