GitLab

GTK has a setting to globally disable animations.  This CL uses it to
disable animations in Chrome when the setting is set to disabled.

R=sky

Bug: 1043808
Change-Id: Idcaee97fdad3a26bb795d496599c745c83da6d9c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2011442Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#734314}