print preview: Fix visual tab order for "Print"/"Cancel" buttons.

chrome/browser/resources/print_preview/print_header.js

 // 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.
 
 cr.define('print_preview', function() {
   'use strict';
 
   /**
    * Creates a PrintHeader object. This object encapsulates all the elements
    * and logic related to the top part of the left pane in print_preview.html.
@@ skipping 64 matching lines @@
     },
 
     /** @param {string} message Error message to display in the print header. */
     setErrorMessage: function(message) {
       var summaryEl = this.getChildElement('.summary');
       summaryEl.innerHTML = '';
       summaryEl.textContent = message;
     },
 
     /** @override */
+    decorateInternal: function() {
+      cr.ui.reverseButtonStrips(this.getElement());
+    },
+
+    /** @override */
     enterDocument: function() {
       print_preview.Component.prototype.enterDocument.call(this);
 
       // User events
       this.tracker.add(
           this.getChildElement('button.cancel'),
           'click',
           this.onCancelButtonClick_.bind(this));
       this.tracker.add(
           this.getChildElement('button.print'),
@@ skipping 153 matching lines @@
         this.getChildElement('button.print').focus();
       }
     }
   };
 
   // Export
   return {
     PrintHeader: PrintHeader
   };
 });