Remove webkit prefixes for CSS Animation in ui/ styles

ui/login/account_picker/user_pod_row.css

 /* Copyright 2014 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 is the stylesheet used by user pods row of account picker UI.
  */
 
 podrow {
   /* Temporarily disabled because animation interferes with updating screen's
    size. */
@@ skipping 381 matching lines @@
     url(chrome://theme/IDR_EASY_UNLOCK_LOCKED_WITH_PROXIMITY_HINT)
     url(chrome://theme/IDR_EASY_UNLOCK_LOCKED_WITH_PROXIMITY_HINT_HOVER)
     url(chrome://theme/IDR_EASY_UNLOCK_LOCKED_WITH_PROXIMITY_HINT_PRESSED)
     url(chrome://theme/IDR_EASY_UNLOCK_UNLOCKED)
     url(chrome://theme/IDR_EASY_UNLOCK_UNLOCKED_HOVER)
     url(chrome://theme/IDR_EASY_UNLOCK_UNLOCKED_PRESSED);
   display: none;
 }
 
 .custom-icon-spinner {
-  -webkit-animation: easy-unlock-spinner-animation 2s steps(45) infinite;
+  animation: easy-unlock-spinner-animation 2s steps(45) infinite;
   background-image: url(chrome://theme/IDR_EASY_UNLOCK_SPINNER);
 }
 
-@-webkit-keyframes easy-unlock-spinner-animation {
+@keyframes easy-unlock-spinner-animation {
   from { background-position: 0 }
   to { background-position: -1215px }
 }
 
 .interactive-custom-icon {
   cursor: pointer;
 }
 
 .pod[auth-type='onlineSignIn'] .custom-icon-container {
   display: none;
@@ skipping 16 matching lines @@
 .launch-app-button {
   display: inline;
   margin-top: 6px !important;
   max-width: 100%;
   overflow: hidden;
   text-overflow: ellipsis;
 }
 
 .pod[auth-type='onlineSignIn'] .reauth-hint-container {
   display: flex;
+  justify-content: center;
   margin-top: 8px;
   width: 100%;
-  justify-content: center;
 }
 
 .reauth-hint-container .reauth-warning {
   -webkit-mask-image: url(../../../ui/webui/resources/images/warning.svg);
   -webkit-mask-position: center;
   -webkit-mask-repeat: no-repeat;
   -webkit-mask-size: 20px;
   background-color: #f4b400;
   height: 24px;
   width: 24px;
@@ skipping 498 matching lines @@
 }
 
 .horizontal-line {
   border-bottom: 1px double #cccccc;
   bottom: 8px;
   position: relative;
 }
 
 /* Animations for the animated ellipsis: */
 .animated-ellipsis-component0 {
-  -webkit-animation: ellipsis-component0 1.5s infinite;
+  animation: ellipsis-component0 1.5s infinite;
 }
 
-@-webkit-keyframes ellipsis-component0 {
+@keyframes ellipsis-component0 {
   0% { opacity: 0; }
   25% { opacity: 1; }
   50% { opacity: 1; }
   75% { opacity: 1; }
   100% { opacity: 0; }
 }
 
 .animated-ellipsis-component1 {
-  -webkit-animation: ellipsis-component1 1.5s infinite;
+  animation: ellipsis-component1 1.5s infinite;
 }
 
-@-webkit-keyframes ellipsis-component1 {
+@keyframes ellipsis-component1 {
   0% { opacity: 0; }
   25% { opacity: 0; }
   50% { opacity: 1; }
   75% { opacity: 1; }
   100% { opacity: 0; }
 }
 
 .animated-ellipsis-component2 {
-  -webkit-animation: ellipsis-component2 1.5s infinite;
+  animation: ellipsis-component2 1.5s infinite;
 }
 
-@-webkit-keyframes ellipsis-component2 {
+@keyframes ellipsis-component2 {
   0% { opacity: 0; }
   25% { opacity: 0; }
   50% { opacity: 0; }
   75% { opacity: 1; }
   100% { opacity: 0; }
 }