Import Polymer 0.8 and several key elements.

third_party/polymer/v0_8/components/polymer/src/lib/polymer-bootstrap.html

Index: third_party/polymer/v0_8/components/polymer/src/lib/polymer-bootstrap.html
diff --git a/third_party/polymer/v0_8/components/polymer/src/lib/polymer-bootstrap.html b/third_party/polymer/v0_8/components/polymer/src/lib/polymer-bootstrap.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
+-->
+<script>
+
+  // until ES6 modules become standard, we follow Occam and simply stake out 
+  // a global namespace
+
+  // Polymer is a Function, but of course this is also an Object, so we 
+  // hang various other objects off of Polymer.*
+  (function() {
+    var userPolymer = window.Polymer;
+    
+    window.Polymer = function(prototype) {
+      var ctor = desugar(prototype);
+      // native Custom Elements treats 'undefined' extends property
+      // as valued, the property must not exist to be ignored
+      var options = {
+        prototype: ctor.prototype
+      };
+      if (prototype.extends) {
+        options.extends = prototype.extends;
+      }
+      Polymer.telemetry._registrate(prototype);
+      document.registerElement(prototype.is, options);
+      return ctor;
+    };
+
+    var desugar = function(prototype) {
+      prototype = Polymer.Base.chainObject(prototype, Polymer.Base);
+      prototype.registerCallback();
+      return prototype.constructor;
+    };
+
+    window.Polymer = Polymer;
+
+    if (userPolymer) {
+      for (var i in userPolymer) {
+        Polymer[i] = userPolymer[i];
+      }
+    }
+
+    Polymer.Class = desugar;
+
+  })();
+  /*
+  // Raw usage
+  [ctor =] Polymer.Class(prototype);
+  document.registerElement(name, ctor);
+  
+  // Simplified usage
+  [ctor = ] Polymer(prototype);
+  */
+
+  // telemetry: statistics, logging, and debug
+
+  Polymer.telemetry = {
+    registrations: [],
+    _regLog: function(prototype) {
+      console.log('[' + prototype.is + ']: registered')
+    },
+    _registrate: function(prototype) {
+      this.registrations.push(prototype);
+      Polymer.log && this._regLog(prototype);
+    },
+    dumpRegistrations: function() {
+      this.registrations.forEach(this._regLog);
+    }
+  };
+
+</script>
+