Updated to Chrome 45 (2454) moved from SVN to git.

modules/canvas2d/MouseEventHitRegion.idl

 // 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;
 };