add HideAndClose in preference to having Close sometimes magically defer

ui/views/widget/widget.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/widget/widget.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
@@ skipping 597 matching lines @@
     saved_show_state_ = ui::SHOW_STATE_NORMAL;
   } else {
     native_widget_->Show();
   }
 }
 
 void Widget::Hide() {
   native_widget_->Hide();
 }
 
+void Widget::HideAndClose() {
+  native_widget_->HideAndClose();
+}
+
 void Widget::ShowInactive() {
   // If this gets called with saved_show_state_ == ui::SHOW_STATE_MAXIMIZED,
   // call SetBounds()with the restored bounds to set the correct size. This
   // normally should not happen, but if it does we should avoid showing unsized
   // windows.
   if (saved_show_state_ == ui::SHOW_STATE_MAXIMIZED &&
       !initial_restored_bounds_.IsEmpty()) {
     SetBounds(initial_restored_bounds_);
     saved_show_state_ = ui::SHOW_STATE_NORMAL;
   }
@@ skipping 801 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // internal::NativeWidgetPrivate, NativeWidget implementation:
 
 internal::NativeWidgetPrivate* NativeWidgetPrivate::AsNativeWidgetPrivate() {
   return this;
 }
 
 }  // namespace internal
 }  // namespace views