GitLab

The present CL implements a more reliable way to determine in which
display a window is being dragged. For mouse dragging, it shall use
CursorManager::GetDisplay. For touch dragging, it shall simply use the
display where the drag started.

Bug: 995413
Change-Id: I3ed8f5ef236d01d8bbbc397cfa7372be530be8af
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1761523
Commit-Queue: Avery Musbach <amusbach@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Mitsuru Oshima <oshima@chromium.org>
Cr-Commit-Position: refs/heads/master@{#690137}