Import Polymer 0.8 and several key elements.

third_party/polymer/v0_8/components-chromium/polymer/src/lib/base-extracted.js

Index: third_party/polymer/v0_8/components-chromium/polymer/src/lib/base-extracted.js
diff --git a/third_party/polymer/v0_8/components-chromium/polymer/src/lib/base-extracted.js b/third_party/polymer/v0_8/components-chromium/polymer/src/lib/base-extracted.js
new file mode 100644
index 0000000000000000000000000000000000000000..5df6b71daef923c6fab39703c0297276c76f5460
--- /dev/null
+++ b/third_party/polymer/v0_8/components-chromium/polymer/src/lib/base-extracted.js
@@ -0,0 +1,82 @@
+
+
+  Polymer.Base = {
+
+    // pluggable features
+    // `this` context is a prototype, not an instance
+    _addFeature: function(feature) {
+      this.extend(this, feature);
+    },
+
+    // `this` context is a prototype, not an instance
+    registerCallback: function() {
+      this._registerFeatures();  // abstract
+      this._doBehavior('registered'); // abstract
+    },
+
+    createdCallback: function() {
+      Polymer.telemetry.instanceCount++;
+      this.root = this;
+      this._doBehavior('created'); // abstract
+      this._initFeatures(); // abstract
+    },
+
+    // reserved for canonical behavior
+    attachedCallback: function() {
+      this.isAttached = true;
+      this._doBehavior('attached'); // abstract
+    },
+
+    // reserved for canonical behavior
+    detachedCallback: function() {
+      this.isAttached = false;
+      this._doBehavior('detached'); // abstract
+    },
+
+    // reserved for canonical behavior
+    attributeChangedCallback: function(name) {
+      this.setAttributeToProperty(this, name);
+      this._doBehavior('attributeChanged', arguments); // abstract
+    },
+
+    // copy own properties from `api` to `prototype`
+    extend: function(prototype, api) {
+      if (prototype && api) {
+        Object.getOwnPropertyNames(api).forEach(function(n) {
+          this.copyOwnProperty(n, api, prototype);
+        }, this);
+      }
+      return prototype || api;
+    },
+
+    copyOwnProperty: function(name, source, target) {
+      var pd = Object.getOwnPropertyDescriptor(source, name);
+      if (pd) {
+        Object.defineProperty(target, name, pd);
+      }
+    }
+
+  };
+
+  if (Object.__proto__) {
+    Polymer.Base.chainObject = function(object, inherited) {
+      if (object && inherited && object !== inherited) {
+        object.__proto__ = inherited;
+      }
+      return object;
+    };
+  } else {
+    Polymer.Base.chainObject = function(object, inherited) {
+      if (object && inherited && object !== inherited) {
+        var chained = Object.create(inherited);
+        object = Polymer.Base.extend(chained, object);
+      }
+      return object;
+    };
+  }
+
+  Polymer.Base = Polymer.Base.chainObject(Polymer.Base, HTMLElement.prototype);
+
+  // TODO(sjmiles): ad hoc telemetry
+  Polymer.telemetry.instanceCount = 0;
+