The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ab6a422847001b0851927cc249258978c928fe6e

commit ab6a422847001b0851927cc249258978c928fe6e
Author: spqchan <spqchan@chromium.org>
Date: Fri Aug 11 19:47:04 2017

Finch Flag for Animated App Menu Icon

Bug:  754364 
Change-Id: Id9ebe7a531ae5c6b53a955d178158b91037bad2c
Reviewed-on: https://chromium-review.googlesource.com/611043
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Sarah Chan <spqchan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#493834}
[modify] https://crrev.com/ab6a422847001b0851927cc249258978c928fe6e/chrome/browser/about_flags.cc
[modify] https://crrev.com/ab6a422847001b0851927cc249258978c928fe6e/chrome/browser/ui/cocoa/toolbar/app_toolbar_button.mm
[modify] https://crrev.com/ab6a422847001b0851927cc249258978c928fe6e/chrome/browser/ui/views/toolbar/app_menu_button.cc
[modify] https://crrev.com/ab6a422847001b0851927cc249258978c928fe6e/chrome/common/chrome_features.cc
[modify] https://crrev.com/ab6a422847001b0851927cc249258978c928fe6e/chrome/common/chrome_features.h
[modify] https://crrev.com/ab6a422847001b0851927cc249258978c928fe6e/tools/metrics/histograms/enums.xml