Rollback Print and Cancel button positions change, it breaks the tab order.

BUG=407974

Review URL: https://codereview.chromium.org/510353003

Cr-Commit-Position: refs/heads/master@{#292555}

chrome/browser/resources/print_preview/print_header.html

 <div id="print-header">
   <span class="summary"></span>
   <div class="button-strip">
-    <button class="cancel" i18n-content="cancel"></button>
     <button class="print default" i18n-content="printButton" disabled></button>
+    <button class="cancel" i18n-content="cancel"></button>
   </div>
 </div>