Chrome code makes use of the following window targeter customizations:
. changing the mouse/touch insets.
. hit test rects.
The mouse/touch insets are plumbed through via EasyResizeWindowTargeter, but not the hit test rects.
The rounded omnibox makes use of a custom window targeter, which is why it's broke in mash now.
Comment 1 by sky@chromium.org
, Aug 29