GitLab

OverviewWindowDragController::UpdateDragIndicatorsAndOverviewGrid()
contains code that bails out if the window cannot be snapped in split
view. So then OverviewSession::RearrangeDuringDrag() does not get
called, and it has responsibility for updating the drop target
background visibility, hence Issue 964469. Also,
OverviewSession::SetSplitViewDragIndicatorsIndicatorState() does not get
called, and it has responsibility for reparenting the split view drag
indicators widget so that it appears on the correct display, meaning
that the present CL is a step toward fixing Issue 961171, although the
present CL certainly does not completely fix Issue 961171.

Test: manual
Bug: 961171, 964469
Change-Id: I95704caacfb315161c9ecf34e3ad55b1c40a8c2c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1617272Reviewed-by: Xiaoqian Dai <xdai@chromium.org>
Commit-Queue: Avery Musbach <amusbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#661078}