Change var blah_blah -> blahBlah.

chrome/browser/resources/options/content_settings_exceptions_area.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.
 
 cr.define('options.contentSettings', function() {
   /** @const */ var ControlledSettingIndicator =
                     options.ControlledSettingIndicator;
   /** @const */ var InlineEditableItemList = options.InlineEditableItemList;
   /** @const */ var InlineEditableItem = options.InlineEditableItem;
   /** @const */ var ArrayDataModel = cr.ui.ArrayDataModel;
@@ skipping 604 matching lines @@
       header.textContent = loadTimeData.getString(type + '_header');
 
       var divs = this.pageDiv.querySelectorAll('div[contentType]');
       for (var i = 0; i < divs.length; i++) {
         if (divs[i].getAttribute('contentType') == type)
           divs[i].hidden = false;
         else
           divs[i].hidden = true;
       }
 
-      var media_header = this.pageDiv.querySelector('.media-header');
-      media_header.hidden = type != 'media-stream';
+      var mediaHeader = this.pageDiv.querySelector('.media-header');
+      mediaHeader.hidden = type != 'media-stream';
     },
 
     /**
      * Called after the page has been shown. Show the content type for the
      * location's hash.
      */
     didShowPage: function() {
       var hash = location.hash;
       if (hash)
         this.showList(hash.slice(1));
@@ skipping 21 matching lines @@
     }
   };
 
   return {
     ExceptionsListItem: ExceptionsListItem,
     ExceptionsAddRowListItem: ExceptionsAddRowListItem,
     ExceptionsList: ExceptionsList,
     ContentSettingsExceptionsArea: ContentSettingsExceptionsArea,
   };
 });