commit 674f969fd154ff0c6f7b685e9940ed946fef5b6a
author Yunfan Chen <yunfanc@google.com> Tue Nov 05 14:41:08 2019 -0800
committer Yunfan Chen <yunfanc@google.com> Wed Nov 06 14:11:12 2019 -0800
tree 3379c2116e718b2ca1b3a6fcfc77a67a23021dbb
parent 3ad8b97d661cae88e05db41bb46273a1ea9dd729

Notify task freeform constrains change to system UI (5/N)

This patch introduces freeform constraints, including the resize mode
and the minimal size to TaskDescription of TaskRecord. This will be
used to draw the resizing bounds before actually get the resizing done
by the WM. It will provide a better support for resizing strategies
including guide-view and background color fill.

Bug: 113253712
Bug: 122726344
Bug: 143496800
Test: go/wm-smoke
Test: Manually registered a listener from system UI and the event is
      correctly received.

Change-Id: I430c165cfb52ae4135c8d9328f682b8d305d0302