web_dev_style: Fix errors in new directories and enable PRESUBMIT

ui/webui/resources/cr_elements/policy/cr_policy_network_behavior.js

 // Copyright 2015 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 Behavior for policy controlled network properties.
  */
 
 /** @polymerBehavior */
 var CrPolicyNetworkBehavior = {
@@ skipping 62 matching lines @@
    * @param {string|undefined} source
    * @return {boolean}
    * @private
    */
   isPolicySource: function(source) {
     return !!source && (source == CrOnc.Source.DEVICE_POLICY ||
                         source == CrOnc.Source.USER_POLICY);
   },
 
   /**
-   * @param {String} source
+   * @param {string} source
    * @return {!CrPolicyIndicatorType}
    * @private
    */
   getIndicatorTypeForSource: function(source) {
     if (source == CrOnc.Source.DEVICE_POLICY)
       return CrPolicyIndicatorType.DEVICE_POLICY;
     if (source == CrOnc.Source.USER_POLICY)
       return CrPolicyIndicatorType.USER_POLICY;
     return CrPolicyIndicatorType.NONE;
   },
 };