Fix bug in constrained windows where the close box was detaching instead of closing. We weren't considering HTCLOSE in the test of acceptable hittest components that might cause detaching.
Fix bug in constrained windows where the close box was detaching instead of closing. We weren't considering HTCLOSE in the test of acceptable hittest components that might cause detaching.

B=1341975

git-svn-id: http://src.chromium.org/svn/trunk/src@1335 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 31a13ef1d717df74a3f1dace42f4a2f1d1763854
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser