Rename polymer and cr_elements v0_8 to v1_0

third_party/polymer/v1_0/components/iron-autogrow-textarea/README.md

 # iron-autogrow-textarea
 
 `iron-autogrow-textarea` is an element containing a textarea that grows in height as more
 lines of input are entered. Unless an explicit height or the `maxRows` property is set, it will
 never scroll.
 
 Example:
 
     <iron-autogrow-textarea id="a1">
       <textarea id="t1"></textarea>
     </iron-autogrow-textarea>
 
 Because the `textarea`'s `value` property is not observable, you should use
 this element's `bind-value` instead for imperative updates. Alternatively, if
 you do set the `textarea`'s `value` imperatively, you must also call `update`
 to notify this element the value has changed.
 
     Example:
         /* preferred, using the example HTML above*/
         a1.bindValue = 'some\ntext';
 
         /* alternatively, */
         t1.value = 'some\ntext';
         a1.update();