Update bower.json for Polymer elements and add PRESUBMIT.py

third_party/polymer/v1_0/components/paper-input/paper-textarea.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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 <link rel="import" href="../polymer/polymer.html">
 <link rel="import" href="../iron-autogrow-textarea/iron-autogrow-textarea.html">
-<link rel="import" href="../iron-form-element-behavior/iron-form-element-behavior.html">
 <link rel="import" href="paper-input-behavior.html">
 <link rel="import" href="paper-input-container.html">
 <link rel="import" href="paper-input-error.html">
 <link rel="import" href="paper-input-char-counter.html">
 
 <!--
 `<paper-textarea>` is a multi-line text field with Material Design styling.
 
     <paper-textarea label="Textarea label"></paper-textarea>
 
@@ skipping 18 matching lines @@
 
       <iron-autogrow-textarea id="input" class="paper-input-input"
         bind-value="{{value}}"
         autocomplete$="[[autocomplete]]"
         autofocus$="[[autofocus]]"
         inputmode$="[[inputmode]]"
         name$="[[name]]"
         placeholder$="[[placeholder]]"
         readonly$="[[readonly]]"
         required$="[[required]]"
-        maxlength$="[[maxlength]]"></iron-autogrow-textarea>
+        maxlength$="[[maxlength]]"
+        autocapitalize$="[[autocapitalize]]"></iron-autogrow-textarea>
 
       <template is="dom-if" if="[[errorMessage]]">
         <paper-input-error>[[errorMessage]]</paper-input-error>
       </template>
 
       <template is="dom-if" if="[[charCounter]]">
         <paper-input-char-counter></paper-input-char-counter>
       </template>
 
     </paper-input-container>
 
   </template>
 
 </dom-module>
 
 <script>
 
 (function() {
 
   Polymer({
 
     is: 'paper-textarea',
 
     behaviors: [
-      Polymer.PaperInputBehavior,
-      Polymer.IronFormElementBehavior
+      Polymer.PaperInputBehavior
     ],
 
     properties: {
 
       _ariaLabelledBy: {
         observer: '_ariaLabelledByChanged',
         type: String
       },
 
       _ariaDescribedBy: {
         observer: '_ariaDescribedByChanged',
         type: String
       }
 
     },
 
     _ariaLabelledByChanged: function(ariaLabelledBy) {
       this.$.input.textarea.setAttribute('aria-labelledby', ariaLabelledBy);
     },
 
     _ariaDescribedByChanged: function(ariaDescribedBy) {
       this.$.input.textarea.setAttribute('aria-describedby', ariaDescribedBy);
     }
 
   });
 
 })();
 
 </script>