The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/d1ae419e5a18858f1a21e8c9d4a9726daa84a142

commit d1ae419e5a18858f1a21e8c9d4a9726daa84a142
Author: Gauthier Ambard <gambard@chromium.org>
Date: Wed Jan 24 11:21:14 2018

Add animations to the tools menu button

This CL adds the animations of the tools menu button when an element is
added to the ReadingList or for the tips.

Bug:  801083 
Cq-Include-Trybots: master.tryserver.chromium.mac:ios-simulator-cronet;master.tryserver.chromium.mac:ios-simulator-full-configs
Change-Id: Ie6e3261f0554d0123e8f31984d491e88c233ecdb
Reviewed-on: https://chromium-review.googlesource.com/878824
Commit-Queue: Gauthier Ambard <gambard@chromium.org>
Reviewed-by: Louis Romero <lpromero@chromium.org>
Cr-Commit-Position: refs/heads/master@{#531498}
[modify] https://crrev.com/d1ae419e5a18858f1a21e8c9d4a9726daa84a142/ios/chrome/browser/ui/toolbar/adaptive/BUILD.gn
[modify] https://crrev.com/d1ae419e5a18858f1a21e8c9d4a9726daa84a142/ios/chrome/browser/ui/toolbar/adaptive/adaptive_toolbar_coordinator.mm
[modify] https://crrev.com/d1ae419e5a18858f1a21e8c9d4a9726daa84a142/ios/chrome/browser/ui/toolbar/adaptive/adaptive_toolbar_view_controller.h
[modify] https://crrev.com/d1ae419e5a18858f1a21e8c9d4a9726daa84a142/ios/chrome/browser/ui/toolbar/adaptive/adaptive_toolbar_view_controller.mm