add HideAndClose in preference to having Close sometimes magically defer

ui/views/widget/native_widget_win.cc

Index: ui/views/widget/native_widget_win.cc
diff --git a/ui/views/widget/native_widget_win.cc b/ui/views/widget/native_widget_win.cc
index eef25f8e7915514187f349ef1644fbdfe835edfc..42cbd6adce115ab97b2897f929ce3871dc601b74 100644
--- a/ui/views/widget/native_widget_win.cc
+++ b/ui/views/widget/native_widget_win.cc
@@ -285,6 +285,10 @@ void NativeWidgetWin::Hide() {
   message_handler_->Hide();
 }
 
+void NativeWidgetWin::HideAndClose() {
+  Close();
+}
+
 void NativeWidgetWin::ShowMaximizedWithBounds(
     const gfx::Rect& restored_bounds) {
   message_handler_->ShowMaximizedWithBounds(restored_bounds);