From a3fce19f00693d32282a0b5e70eaa256ef61b24c Mon Sep 17 00:00:00 2001
From: Steven Orvell <sorvell@google.com>
Date: Thu, 17 Mar 2016 10:10:58 -0700
Subject: [PATCH] Fast check in createdCallback to see if registration has
 finished.

---
 src/lib/base.html | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/lib/base.html b/src/lib/base.html
index 8cf9a3b444..1223d4e438 100644
--- a/src/lib/base.html
+++ b/src/lib/base.html
@@ -40,7 +40,9 @@
     },
 
     createdCallback: function() {
-      this._ensureRegisterFinished(this.__proto__);
+      if (!this.__hasRegisterFinished) {
+        this._ensureRegisterFinished(this.__proto__);
+      }
       Polymer.telemetry.instanceCount++;
       this.root = this;
       this._doBehavior('created'); // abstract