ui: Remove TouchStatus in favour of EventResult.

ash/wm/system_modal_container_event_filter.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 "ash/wm/system_modal_container_event_filter.h"
 
 #include "ash/wm/system_modal_container_event_filter_delegate.h"
 #include "ui/base/events/event.h"
 
 namespace ash {
@@ skipping 12 matching lines @@
     ui::KeyEvent* event) {
   return !delegate_->CanWindowReceiveEvents(target);
 }
 
 bool SystemModalContainerEventFilter::PreHandleMouseEvent(
     aura::Window* target,
     ui::MouseEvent* event) {
   return !delegate_->CanWindowReceiveEvents(target);
 }
 
-ui::TouchStatus SystemModalContainerEventFilter::PreHandleTouchEvent(
+ui::EventResult SystemModalContainerEventFilter::PreHandleTouchEvent(
     aura::Window* target,
     ui::TouchEvent* event) {
   // TODO(sadrul): !
-  return ui::TOUCH_STATUS_UNKNOWN;
+  return ui::ER_UNHANDLED;
 }
 
 ui::EventResult SystemModalContainerEventFilter::PreHandleGestureEvent(
     aura::Window* target,
     ui::GestureEvent* event) {
   // TODO(sad):
   return ui::ER_UNHANDLED;
 }
 
 }  // namespace internal
 }  // namespace ash