DevTools: use semicolons after each statement.

third_party/WebKit/Source/devtools/front_end/sdk/LayerTreeBase.js

 // Copyright 2016 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.
 
 /**
  * @interface
  */
 WebInspector.Layer = function()
 {
-}
+};
 
 WebInspector.Layer.prototype = {
     /**
      * @return {string}
      */
     id: function() { },
 
     /**
      * @return {?string}
      */
@@ skipping 91 matching lines @@
 
     /**
      * @param {function(!Array.<string>)} callback
      */
     requestCompositingReasons: function(callback) { },
 
     /**
      * @return {boolean}
      */
     drawsContent: function() { }
-}
+};
 
 WebInspector.Layer.ScrollRectType = {
     NonFastScrollable: "NonFastScrollable",
     TouchEventHandler: "TouchEventHandler",
     WheelEventHandler: "WheelEventHandler",
     RepaintsOnScroll: "RepaintsOnScroll"
-}
+};
 
 /**
   * @constructor
   * @param {?WebInspector.Target} target
   */
 WebInspector.LayerTreeBase = function(target)
 {
     this._target = target;
     this._domModel = target ? WebInspector.DOMModel.fromTarget(target) : null;
     this._layersById = {};
     this._root = null;
     this._contentRoot = null;
     /** @type Map<number, ?WebInspector.DOMNode> */
     this._backendNodeIdToNode = new Map();
-}
+};
 
 WebInspector.LayerTreeBase.prototype = {
     /**
      * @return {?WebInspector.Target}
      */
     target: function()
     {
         return this._target;
     },
 
@@ skipping 99 matching lines @@
     },
 
     /**
      * @param {number} id
      * @return {?WebInspector.DOMNode}
      */
     _nodeForId: function(id)
     {
         return this._domModel ? this._domModel.nodeForId(id) : null;
     }
-}
+};