Rename polymer and cr_elements v0_8 to v1_0

third_party/polymer/v1_0/components/iron-a11y-announcer/iron-a11y-announcer.html

 <!--
 @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
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@@ skipping 105 matching lines @@
         if (!Polymer.IronA11yAnnouncer.instance) {
           document.createElement('iron-a11y-announcer');
         }
 
         document.body.appendChild(Polymer.IronA11yAnnouncer.instance);
       };
     })();
 
   </script>
 </dom-module>