| // Copyright 2014 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. | |
| // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#MouseEvent-partial | |
| [ | |
| RuntimeEnabled=ExperimentalCanvasFeatures | |
| ] partial interface MouseEvent { | |
| readonly attribute DOMString? region; | |
| }; |