GitLab

Added an UMA_HISTOGRAM_BOOLEAN to report how often a gesture event is
or is not dropped based on the current touch action state not
matching the gesture event.

Bug: 745718
Change-Id: Ib1c9f91cfcaa846f3e8bba9a7b1c87f698b2a962
Reviewed-on: https://chromium-review.googlesource.com/575071
Commit-Queue: Xida Chen <xidachen@chromium.org>
Reviewed-by: Dave Tapuska <dtapuska@chromium.org>
Reviewed-by: Jesse Doherty <jwd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#488296}