Merge pull request #5701 from danhp/propagate-close
authorCheng Zhao <zcbenz@gmail.com>
Thu, 26 May 2016 05:33:55 +0000 (05:33 +0000)
committerCheng Zhao <zcbenz@gmail.com>
Thu, 26 May 2016 05:33:55 +0000 (05:33 +0000)
Properly notify observers when window prevents close


Trivial merge