Removed clipped bottom padding from chrome://flags and chrome://plugins headers.

chrome/browser/resources/flags.css

 /*
  * 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.
  */
 
 body {
   margin: 10px;
   min-width: 47em;
   /* Should match needs-restart.(height + padding-top + padding-bottom + 5) */
@@ skipping 14 matching lines @@
   -webkit-padding-start: 0;
   padding-top: 20px;
   position: relative;
   box-sizing: border-box;
 }
 
 #header h1 {
   background: url('../../app/theme/flags_section.png') 0px 20px no-repeat;
   display: inline;
   margin: 0;
-  padding-bottom: 43px;
+  padding-bottom: 20px;
   -webkit-padding-start: 75px;
   padding-top: 40px;
 }
 
 html[dir=rtl] #header h1 {
   background: url('../../app/theme/flags_section.png') right no-repeat;
 }
 
 h1 {
   font-size: 156%;
@@ skipping 109 matching lines @@
   /* If you change this, update body.padding-bottom */
   padding-top: 15px;
   position: fixed;
   width: 100%;
 }
 
 button {
   font-size: 104%;
 }