Standardize size of WebUI controls for touch and non-touch.

chrome/browser/resources/shared/css/list.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. */
 
 list,
 grid {
   display: block;
   outline: none;
   overflow: auto;
   position: relative; /* Make sure that item offsets are relative to the
@@ skipping 73 matching lines @@
 list > .spacer,
 grid > .spacer {
   border: 0;
   box-sizing: border-box;
   display: block;
   margin: 0;
   overflow: hidden;
   visibility: hidden;
 }
 
+list :-webkit-any(
+    input[type='input'],
+    input[type='password'],
+    input[type='search'],
+    input[type='text'],
+    input[type='url']),
+list :-webkit-any(
+    button,
+    input[type='button'],
+    input[type='submit'],
+    select):not(.custom-appearance):not(.link-button) {
+  line-height: normal;
+  margin: 0;
+  vertical-align: middle;
+}
+
 list > [hidden],
 grid > [hidden] {
   display: none;
 }