[Clean up] Fix style guide nits in chrome/browser/resources/options2.

chrome/browser/resources/options2/subpages_tab_controls.css

-/*
-Copyright (c) 2010 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.
-*/
+/* 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. */
 
 .subpages-nav-tabs .tab {
+  padding: 4px 8px;
   position: relative;
-  padding: 4px 8px;
 }
 
 .subpages-nav-tabs .active-tab {
-  position: relative;
   background: white;
   border: 1px solid #A0A0A0;  /* light gray */
   border-bottom: 2px solid white;
   border-top-left-radius: 3px;
   border-top-right-radius: 3px;
+  position: relative;
 }
 
 /* To avoid tabs changing size when they are clicked and their labels become
  * bold, we actually put two labels inside each tab: an inactive label and an
  * active label. Only one is visible at a time, but the bold label is used to
  * size the tab even when it's not visible. This keeps the tab size constant.
  */
 .subpages-nav-tabs .active-tab-label {
   font-weight: bold;
 }
 
 .subpages-nav-tabs .tab-label {
+  left: 9px;
   position: absolute;
   top: 5px;
-  left: 9px;
 }
 
 html[dir=rtl] .subpages-nav-tabs .tab-label {
   right: 9px;
 }
 
 .subpages-nav-tabs .active-tab-label,
 .subpages-nav-tabs .active-tab .tab-label {
   visibility: hidden;
 }
 
 /* .tab is not removed when .active-tab is added, so we must
  * override the hidden visibility above in the active tab case.
  */
 .subpages-nav-tabs .active-tab .active-tab-label {
   visibility: visible;
 }
 
 .subpages-nav-tabs {
+  background: -webkit-linear-gradient(white, #F3F3F3);  /* very light gray */
+  border-bottom: 1px solid #A0A0A0;  /* light gray */
+  margin-bottom: 15px;
   padding: 4px;
-  border-bottom: 1px solid #A0A0A0;  /* light gray */
-  background: -webkit-linear-gradient(white, #F3F3F3);  /* very light gray */
-  margin-bottom: 15px;
 }
 
 .subpages-tab-contents {
+   -webkit-padding-start: 10px;
   display: none;
-   -webkit-padding-start: 10px;
 }
 
 .active-tab-contents {
   display: block;
 }