GitLab

Shelf::ProcessGestureEvent expects an event with in-screen coordinates
(for example to properly calculate window transform during window drag
from shelf). Update ShelfNavigationWidget to pass gesture event copy
with the location in screen coordinates to Shelf::ProcessGestureEvent.

Updates ShelfLayoutManagerWindowDraggingTest.DraggedMRUWindow to verify
that the dragged window is scaled as expected during the drag, and to
test gesture starts from navigation and status area parts of the shelf.

BUG=1034145

Change-Id: I839c6daaaf7577f09444e8094a4fe55dc2502e77
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1985132Reviewed-by: Manu Cornet <manucornet@chromium.org>
Commit-Queue: Toni Baržić <tbarzic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#728021}