It is time.

ui/base/dragdrop/drop_target_event.h

-// Copyright (c) 2013 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.
-
-#ifndef UI_BASE_DRAGDROP_DROP_TARGET_EVENT_H_
-#define UI_BASE_DRAGDROP_DROP_TARGET_EVENT_H_
-
-#include "ui/events/event.h"
-#include "ui/base/dragdrop/os_exchange_data.h"
-
-namespace ui {
-
-class UI_BASE_EXPORT DropTargetEvent : public LocatedEvent {
- public:
-  DropTargetEvent(const OSExchangeData& data,
-                  const gfx::Point& location,
-                  const gfx::Point& root_location,
-                  int source_operations);
-
-  const OSExchangeData& data() const { return data_; }
-  int source_operations() const { return source_operations_; }
-
- private:
-  // Data associated with the drag/drop session.
-  const OSExchangeData& data_;
-
-  // Bitmask of supported DragDropTypes::DragOperation by the source.
-  int source_operations_;
-
-  DISALLOW_COPY_AND_ASSIGN(DropTargetEvent);
-};
-
-}  // namespace ui
-
-#endif  // UI_BASE_DRAGDROP_DROP_TARGET_EVENT_H_
-