Minor CSS cleanup.

chrome/browser/resources/options/extension_list.js

 // Copyright (c) 2011 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', function() {
   /**
    * Creates a new list of extensions.
    * @param {Object=} opt_propertyBag Optional properties.
    * @constructor
    * @extends {cr.ui.div}
@@ skipping 148 matching lines @@
         // Next to it, we have the extension icon.
         icon = this.ownerDocument.createElement('img');
         icon.classList.add('extension-icon');
         icon.src = extension.icon;
         hbox.appendChild(icon);
 
         // Start a vertical box for showing the details.
         var vbox = this.ownerDocument.createElement('div');
         vbox.classList.add('vbox');
         vbox.classList.add('stretch');
+        vbox.classList.add('details-view');
         hbox.appendChild(vbox);
 
         div = this.ownerDocument.createElement('div');
         vbox.appendChild(div);
 
         // Title comes next.
         var title = this.ownerDocument.createElement('span');
         title.classList.add('extension-title');
         title.textContent = extension.name;
         vbox.appendChild(title);
@@ skipping 496 matching lines @@
           ]);
         }
       }
     },
   };
 
   return {
     ExtensionsList: ExtensionsList
   };
 });