ui: Remove TouchStatus in favour of EventResult.

ui/base/events/event_constants.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/base/events/event_constants.h"
-
-#include "base/logging.h"
-
-namespace ui {
-
-EventResult EventResultFromTouchStatus(TouchStatus status) {
-  switch (status) {
-    case TOUCH_STATUS_UNKNOWN:
-      return ER_UNHANDLED;
-
-    case TOUCH_STATUS_START:
-    case TOUCH_STATUS_CONTINUE:
-    case TOUCH_STATUS_END:
-    case TOUCH_STATUS_QUEUED:
-    case TOUCH_STATUS_QUEUED_END:
-      return ER_CONSUMED;
-  }
-
-  NOTREACHED();
-  return ER_UNHANDLED;
-}
-
-}  // namespace ui