Fixing drag out of maximize dialog button problem

Clicking on a maximizer dialog button and dragging out of the dialog left the phantom window open

BUG=141438
TEST=Visual


Review URL: https://chromiumcodereview.appspot.com/10836176

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@150854 0039d316-1c4b-4281-b951-d872f2087c98

ash/wm/workspace/frame_maximize_button.cc

@@ -165,7 +165,7 @@ void FrameMaximizeButton::ExecuteSnapAndCloseMenu(SnapType snap_type) {
 }
 
 void FrameMaximizeButton::DestroyMaximizeMenu() {
-  maximizer_.reset();
+  Cancel(false);
 }
 
 void FrameMaximizeButton::OnWindowBoundsChanged(