GitLab

This CL removes TrayPopupInkDropStyle from SystemMenuButton constructor,
because at all call sites TrayPopupInkDropStyle::HOST_CENTERED is given.

This CL also removes TrayPopupInkDropStyle from
TrayPopupUtils::CreateInkDrop, as it's unused.

BUG=none

Change-Id: I4168aa03ec2ee0a243eec3b8cb62f523b3d56711
Reviewed-on: https://chromium-review.googlesource.com/919924
Commit-Queue: Tetsui Ohkubo <tetsui@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#537176}