Polymer upgraded to 1.0 in login flow.

chrome/browser/resources/chromeos/login/oobe_screen_controller_pairing.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.
  */
 
 /* TODO(dzhioev): support RTL. http://crbug.com/423354 */
 /* TODO(xdai): Remove the hard-coded font-family for 'Roboto'. */
 
 :host {
   -webkit-user-select: none;
   background: white;
   display: block;
   font-family: 'Roboto';
   height: 600px;
   position: relative;
   width: 720px;
 }
 
-.gaia-frame {
-  height: 300px;
-  width: 339px;
-}
-
 controller-pairing-page[name='device-select']::shadow #top,
 controller-pairing-page[name='establishing-connection']::shadow #top {
   height: 200px;
 }
 
 controller-pairing-page[name='code-confirmation']::shadow #top,
 controller-pairing-page[name='host-update']::shadow #top,
 controller-pairing-page[name='host-connection-lost']::shadow #top,
 controller-pairing-page[name='enrollment-introduction']::shadow #top {
   height: 300px;
 }
 
 controller-pairing-page[name='authentication']::shadow #top {
   height: 100px;
 }
 
-indeterminate-progress {
+paper-progress {
+  --paper-progress-active-color: var(--google-green-500);
+  --paper-progress-container-color: var(--google-green-100);
   margin-bottom: 28px;
   margin-top: 28px;
+  width: 100%;
 }
 
 #code {
   color: #757575;
   font-size: 55px;
   font-weight: 300;
 }
 
 pairing-device-list {
   height: 252px;
 }