GitLab

Use touchstart as a criterion to stop contextmenu propagation.

Bug: 812056
Cq-Include-Trybots: luci.chromium.try:closure_compilation
Change-Id: I2d6272b08c0f1ad8229fe340825607e8ef6df007
Reviewed-on: https://chromium-review.googlesource.com/1109668
Commit-Queue: Alexey Baskakov <loyso@chromium.org>
Reviewed-by: Noel Gordon <noel@chromium.org>
Reviewed-by: calamity <calamity@chromium.org>
Cr-Commit-Position: refs/heads/master@{#570347}