Replace -webkit-transform with transform in Chrome UI

ui/webui/resources/css/dialogs.css

 /* 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-dialog-container {
   -webkit-box-align: center;
   -webkit-box-pack: center;
   -webkit-transition: opacity 250ms linear;
   -webkit-user-select: none;
   display: -webkit-box;
@@ skipping 20 matching lines @@
   position: relative;
   width: 460px;
 }
 
 .cr-dialog-frame:focus {
   outline: none;
 }
 
 @-webkit-keyframes pulse {
  0% {
-   -webkit-transform: scale(1);
+   transform: scale(1);
  }
  40% {
-   -webkit-transform: scale(1.02);
+   transform: scale(1.02);
   }
  60% {
-   -webkit-transform: scale(1.02);
+   transform: scale(1.02);
   }
  100% {
-   -webkit-transform: scale(1);
+   transform: scale(1);
  }
 }
 
 .cr-dialog-frame.pulse {
   -webkit-animation-duration: 180ms;
   -webkit-animation-iteration-count: 1;
   -webkit-animation-name: pulse;
   -webkit-animation-timing-function: ease-in-out;
 }
 
 .shown > .cr-dialog-frame {
-  -webkit-transform: perspective(500px) scale(1)
+  transform: perspective(500px) scale(1)
                      translateY(0) rotateX(0);
   opacity: 1;
 }
 
 .cr-dialog-frame {
-  -webkit-transform: perspective(500px) scale(0.99)
+  transform: perspective(500px) scale(0.99)
                      translateY(-20px) rotateX(5deg);
   -webkit-transition: all 180ms;
   -webkit-transition-duration: 250ms;
   opacity: 0;
 }
 
 .cr-dialog-shield {
   -webkit-transition: opacity 500ms;
   background-color: white;
   bottom: 0;
@@ skipping 58 matching lines @@
   width: 44px;
 }
 
 .cr-dialog-close:hover {
   background-image: url(chrome://theme/IDR_CLOSE_DIALOG_H);
 }
 
 .cr-dialog-close:active {
   background-image: url(chrome://theme/IDR_CLOSE_DIALOG_P);
 }