WebUI: Enable ESLint rule for missing semicolons.

ui/webui/resources/js/cr/ui/array_data_model.js

 // 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.
 
 /**
  * @fileoverview This is a data model representin
  */
 
 // The include directives are put into Javascript-style comments to prevent
 // parsing errors in non-flattened mode. The flattener still sees them.
@@ skipping 108 matching lines @@
 
     /**
      * Returns an array of elements in a selected range.
      * @param {number=} opt_from The starting index of the selected range.
      * @param {number=} opt_to The ending index of selected range.
      * @return {Array} An array of elements in the selected range.
      */
     slice: function(opt_from, opt_to) {
       var arr = this.array_;
       return this.indexes_.slice(opt_from, opt_to).map(function(index) {
-        return arr[index]
+        return arr[index];
       });
     },
 
     /**
      * This removes and adds items to the model.
      * This dispatches a splice event.
      * This implementation runs sort after splice and creates permutation for
      * the whole change.
      * @param {number} index The index of the item to update.
      * @param {number} deleteCount The number of items to remove.
@@ skipping 252 matching lines @@
      */
     createCompareFunction_: function(field) {
       var compareFunction =
           this.compareFunctions_ ? this.compareFunctions_[field] : null;
       var defaultValuesCompareFunction = this.defaultValuesCompareFunction;
       if (compareFunction) {
         return compareFunction;
       } else {
         return function(a, b) {
           return defaultValuesCompareFunction.call(null, a[field], b[field]);
-        }
+        };
       }
     },
 
     /**
      * Creates compare function for given field and direction.
      * @param {string} field Sort field.
      * @param {string} direction Sort direction.
      * @private
      */
     sortFunction_: function(field, direction) {
@@ skipping 24 matching lines @@
       if (a < b)
         return -1;
       if (a > b)
         return 1;
       return 0;
     }
   };
 
   return {ArrayDataModel: ArrayDataModel};
 });