Uprefix CSS transitions in ui/ and chrome/ styles

chrome/browser/resources/chromeos/login/oobe_screen.css

 /* Copyright 2013 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.
  *
  * This contains common styling for all the OOBE screens. */
 
 :root {
   --oobe-roboto-medium: 500 12px Roboto;
   --oobe-roboto-bold: 700 12px Roboto;
 }
 
 .step {
   box-sizing: border-box;
   position: absolute;
 }
 
 .step.animated:not(.faded) {
-  -webkit-transition: transform 200ms ease-in-out,
-                      opacity 200ms ease-in-out,
-                      visibility 200ms ease-in-out;
+  transition: transform 200ms ease-in-out,
+              opacity 200ms ease-in-out,
+              visibility 200ms ease-in-out;
 }
 
 .step.hidden {
   visibility: hidden;
 }
 
 .faded,
 .left,
 .right {
   opacity: 0;
@@ skipping 84 matching lines @@
 
 /* EULA screen extra controls have 2 elements
    so they require different alignment. */
 #eula-extra-controls {
   bottom: 17px;
 }
 
 #security-info a:focus,
 #eula a:focus,
 .step-extra-controls a:focus {
-  -webkit-transition: outline-color 200ms;
   /* Note: May use 1px solid here. */
   outline-color: rgb(77, 144, 254);
+  transition: outline-color 200ms;
 }
 
 .step-extra-controls > *:not(:first-child) {
   margin-top: 7px;
 }
 
 html[dir=rtl] .step-extra-controls {
   left: auto;
   right: 49px;
 }
@@ skipping 32 matching lines @@
 
 html[highlight=strong] #security-info a:focus,
 html[highlight=strong] #eula a:focus,
 html[highlight=strong] .step-extra-controls a:focus,
 html[highlight=strong] .menu-control:focus,
 html[highlight=strong] input[type='button']:focus,
 html[highlight=strong] button:focus {
   box-shadow: 0 0 23px rgb(77, 144, 254) !important;
 }