[Search] Tweak the styling for the first-run experience

chrome/browser/resources/contextual_search/promo.js

 /* Copyright 2014 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.
 */
 
 /**
  * On load, registers the handler to add the 'hide' class to the container
  * element in order to hide it.
  */
 window.onload = function() {
   $('optin-label').addEventListener('click', function() {
     $('container').classList.add('hide');
   });
 };
+
+/**
+ * Method called from Chrome to properly size the view.

[huangs, 2014/09/11 20:52:29]

NIT: Mention what the method *does* before what it is used for.

[Mathieu, 2014/09/11 20:59:55]

Done.

[Mathieu, 2014/09/11 20:59:55]

Done.

+ * @return {number} The height of the content, in pixels.
+ */
+function getContentHeight() {
+  return $('container').clientHeight;
+}