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This CL adds a menu button highlight animation to run along side the origin
title bar text animation for hosted apps added in:
https://chromium-review.googlesource.com/c/chromium/src/+/942722

Screencast: https://bugs.chromium.org/p/chromium/issues/attachment?aid=327708&signed_aid=U4VyDkrKmEzMN56O5woqsw==&inline=1

Bug: 809794
Change-Id: I7ed8a7c9ccbf2c020bd9c76fb04f2a3123f265de
Reviewed-on: https://chromium-review.googlesource.com/958899Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Reviewed-by: Mohsen Izadi <mohsen@chromium.org>
Reviewed-by: Trent Apted <tapted@chromium.org>
Commit-Queue: Alan Cutter <alancutter@chromium.org>
Cr-Commit-Position: refs/heads/master@{#543569}