Rename polymer and cr_elements v0_8 to v1_0

third_party/polymer/v1_0/components/iron-overlay-behavior/iron-overlay-backdrop.html

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@@ skipping 112 matching lines @@
       if (this._manager.getBackdrops().length === 0 && this.parentNode) {
         Polymer.dom(this.parentNode).removeChild(this);
       }
     }
 
   });
 
 })();
 
 </script>