Reduce usage of webkit CSS prefixes in chrome/browser/resources

chrome/browser/resources/chromeos/login/oobe_screen_user_image.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. */
 
 #user-image {
   min-height: 443px;
   padding: 70px 17px 21px;
   width: 702px;
 }
 
@@ skipping 87 matching lines @@
   float: left;
 }
 
 #user-image-preview-img {
   display: block;
   max-height: 220px;
   max-width: 220px;
 }
 
 #user-image-preview-img.animated-transform {
-  -webkit-transition: -webkit-transform 200ms linear;
+  transition: transform 200ms linear;
 }
 
 .camera.live #user-image-preview-img {
   display: none;
 }
 
 .camera.flip-x #user-image-preview-img {
-  -webkit-transform: rotateY(180deg);
+  transform: rotateY(180deg);
 }
 
 .default-image #user-image-preview-img {
   background: white;
   border: solid 1px #cacaca;
   border-radius: 4px;
   padding: 2px;
 }
 
 .user-image-stream-area {
   display: none;
   padding: 0;
   position: relative;
 }
 
 .camera.live .user-image-stream-area {
   display: block;
 }
 
 #user-image-stream-crop {
-  -webkit-transition: -webkit-transform 200ms linear;
   height: 220px;
   overflow: hidden;
   position: relative;
+  transition: transform 200ms linear;
   width: 220px;
 }
 
 .flip-x #user-image-stream-crop {
-  -webkit-transform: rotateY(180deg);
+  transform: rotateY(180deg);
 }
 
 /* TODO(ivankr): specify dimensions from real capture size. */
 .user-image-stream {
   border: solid 1px #cacaca;
   height: 220px;
   /* Center image for 4:3 aspect ratio. */
   left: -16.6%;
   position: absolute;
   visibility: hidden;
 }
 
 .online .user-image-stream {
   visibility: visible;
 }
 
 #user-image-preview-caption {
   color: dimGray;
   font-size: smaller;
   margin: 8px 4px;
 }
 
 .camera #user-image-preview-caption {
   display: none;
 }
 
 #flip-photo {
-  -webkit-transition: opacity 75ms linear;
   background: url(chrome://theme/IDR_MIRROR_FLIP) no-repeat;
   border: none;
   bottom: 44px;  /* 8px + image bottom. */
   display: block;
   height: 32px;
   opacity: 0;
   position: absolute;
   right: 8px;
+  transition: opacity 75ms linear;
   width: 32px;
   z-index: 1;
 }
 
 /* TODO(merkulova): remove when webkit crbug.com/126479 is fixed. */
 .flip-trick {
-  -webkit-transform: translateZ(1px);
+  transform: translateZ(1px);
 }
 
 html[dir=rtl] #flip-photo {
   left: 8px;
   right: auto;
 }
 
 /* "Flip photo" button is hidden during flip animation. */
 .camera.online:not(.animation) #flip-photo,
 .camera.phototaken:not(.animation) #flip-photo {
@@ skipping 15 matching lines @@
   display: block;
 }
 
 .camera.live.online #take-photo {
   background: url(chrome://theme/IDR_USER_IMAGE_CAPTURE)
       no-repeat center -1px;
   display: block;
 }
 
 #user-image-preview .perspective-box {
-  -webkit-perspective: 600px;
   border: solid 1px #cacaca;
   border-radius: 4px;
   padding: 2px;
+  perspective: 600px;
   width: 220px;
 }
 
 #user-image-attribution {
   /* Turned off for now. */
   display: none;
 }
 
 #user-image .step-contents {
   -webkit-margin-start: 31px;
   margin-bottom: 30px;
 }
 
 .user-image-stream-area .spinner {
   display: none;
   height: 44px;
   left: 50%;
   margin-left: -22px;
   margin-top: -22px;
   position: absolute;
   top: 50%;
   width: 44px;
 }
 
 .camera.live:not(.online) .user-image-stream-area .spinner {
   display: block;
 }