commit 6052a653c5e5b430ee4f3ba9e41b37b4f78752d6
author Jun Mukai <mukai@chromium.org> Sat Jan 12 00:44:33 2019
committer Commit Bot <commit-bot@chromium.org> Sat Jan 12 00:44:33 2019
tree 79d9381e78ce59f4c5f54d905b29e39a5801cd10
parent 794e7b06f7c5e2081582b93ae971e9be9968aec2

Reland "Allow dragging for NonClientArea (i.e. DraggableRegions)"

The non-client area in ProxyWindow is set through "DraggableRegions",
and this section is used for draggability of the window (see
https://cs.chromium.org/chromium/src/apps/ui/views/app_window_frame_view.cc?sq=package:chromium&g=0&l=196).

The same logic should be introduced on Mash, otherwise frameless
app window can't be dragged.

The previous CL (r622061) was reverted since this CL actually
makes any browser-windows unresizable -- this draggable-regions
check should be done only when the located event isn't on the
edge (i.e. keep the existing behavior as long as it returns
values other than HTCLIENT).

Bug: 920469
Test: ash_unittests
Change-Id: I9389e35ae8cb89b84df6517e932acaa5cb7ebaa7
Reviewed-on: https://chromium-review.googlesource.com/c/1407776
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Jun Mukai <mukai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#622239}