Update the visuals of about:flags "Relaunch Now" button.

chrome/browser/resources/flags.css

 /* 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. */
 
 body {
   margin: 10px 10px 0;
 <if expr="not is_android and not is_ios">
   min-width: 47em;
 </if>
-  /* Should match needs-restart.height + 5 */
-  padding-bottom: 75px;
+  /* Should be larger than the evaluated height of needs-restart. */
+  padding-bottom: 100px;
 }
 
 a {
   color: blue;
   font-size: 103%;
 }
 
 .permalink {
   color: #A0A0A0;
 }
@@ skipping 135 matching lines @@
 }
 
 /* Match the indentation of .experiment-text. */
 .experiment-actions {
   -webkit-padding-start: 5px;
   margin-bottom: 0.2em;
   margin-top: 0.2em;
 }
 
 div.needs-restart {
+  /* If you change properties that update the height of this,
+     update body.padding-bottom */

[Dan Beam, 2015/05/11 21:32:31]

nit: continuations should have a * at the beginning
nit: comments should end with .

/* If you change properties that update the height of this,
 * update body.padding-bottom. */
 ^                           ^

[Ted C, 2015/05/11 22:19:06]

Done.  Slightly changed the wording to not use update twice in the same
sentence.

   background: #FFF;
   border-top: 1px solid rgb(181, 199, 222);
   bottom: 0;
   box-sizing: border-box;
-  /* If you change this, update body.padding-bottom */
-  height: 70px;
   left: 0;
-  padding-bottom: 25px;
+  padding-bottom: 15px;
   padding-left: 15px;
   padding-right: 15px;
   padding-top: 15px;
   position: fixed;
   width: 100%;
 }
 
+.experiment-restart-button {
+  -webkit-user-select: none;
+  background: rgb(76, 142, 250);
+  border: 0;
+  border-radius: 2px;
+  box-sizing: border-box;
+  color: #fff;
+  cursor: pointer;
+  font-size: .875em;
+  font-weight: 600;
+  margin-top: 10px;
+  padding: 10px 24px;
+  text-transform: uppercase;
+  transition: box-shadow 200ms cubic-bezier(0.4, 0, 0.2, 1);
+}
+
 button {
   font-size: 104%;
 }