Revert "Rename polymer and cr_elements v0_8 to v1_0"

third_party/polymer/v0_8/components/paper-item/paper-item-shared.css

 /*
     @license
     Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
     This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
     The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
     The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
     Code distributed by Google as part of the polymer project is also
     subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
 */
 
 :host {
   display: block;
   min-height: var(--paper-item-min-height, 48px);
   padding: 0px 16px;
 }
 
 :host > ::content > *:not(:first-child):not(:last-child) {
   margin-right: 16px;
 }