Import Polymer 0.8 and several key elements.

third_party/polymer/v0_8/components/polymer/src/lib/template/x-template.html

Index: third_party/polymer/v0_8/components/polymer/src/lib/template/x-template.html
diff --git a/third_party/polymer/v0_8/components/polymer/src/lib/template/x-template.html b/third_party/polymer/v0_8/components/polymer/src/lib/template/x-template.html
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+<!--
+@license
+Copyright (c) 2014 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
+-->
+
+<link rel="import" href="templatizer.html">
+
+<script>
+
+  /**
+   * Creates a pseudo-custom-element that maps property values to bindings
+   * in DOM.
+   * 
+   * `stamp` method creates an instance of the pseudo-element. The instance
+   * references a document-fragment containing the stamped and bound dom
+   * via it's `root` property. 
+   *  
+   */
+  Polymer({
+
+    is: 'x-template',
+    extends: 'template',
+
+    behaviors: [
+      Polymer.Templatizer
+    ],
+
+    ready: function() {
+      this.templatize(this);
+    }
+
+  });
+
+</script>