GitLab

Adds a fix so that Media History does not record
background or muted watchtime since they are not
useful to us (we only want foreground unmuted).

BUG=1086511

Change-Id: I175c20ad88c136f291b72ae021b3cc22729bc5f6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2216375
Commit-Queue: Becca Hughes <beccahughes@chromium.org>
Reviewed-by: Tommy Steimel <steimel@chromium.org>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#771995}