GitLab

Reason for revert:
Speculative revert because of failure in desktop_screen_x11_unittest.cc (DesktopScreenX11Test.GetWindowAtScreenPoint).

Original issue's description:
> Fix X11TopmostWindowFinder to take into account
> - Window manager provided window borders
> - Custom shapes specified via views::Widget::SetShape()
> 
> BUG=None
> TEST=None
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=270877

TBR=sadrul@chromium.org,pkotwicz@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=None

Review URL: https://codereview.chromium.org/291583003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@270964 0039d316-1c4b-4281-b951-d872f2087c98