[Media Controls] Allowing tabbing into controls after touch

This CL modifies MediaControlsImpl's OnFocusIn handler to only prevent
showing the controls while the tap timer is running, instead of anytime
we're using touch controls. This fixes an issue where users were unable
to tab into the controls after touching on the video.

Bug: 919784
Change-Id: I7babc2665ecf7ce0bfe32905982caaa5c5843395
Reviewed-on: https://chromium-review.googlesource.com/c/1447029
Commit-Queue: Tommy Steimel <steimel@chromium.org>
Reviewed-by: CJ DiMeglio <lethalantidote@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#627743}(cherry picked from commit 4dd5227997a010d8197c308a5625359f28d2a828)
Reviewed-on: https://chromium-review.googlesource.com/c/1452460
Reviewed-by: Tommy Steimel <steimel@chromium.org>
Cr-Commit-Position: refs/branch-heads/3683@{#169}
Cr-Branched-From: e51029943e0a38dd794b73caaf6373d5496ae783-refs/heads/master@{#625896}
2 files changed