From 9c5a404d3a0a06c6dfc3d44ce9f49ce04617e46d Mon Sep 17 00:00:00 2001
From: Steven Orvell <sorvell@google.com>
Date: Mon, 19 Oct 2015 14:43:49 -0700
Subject: [PATCH] Avoid Polymer.dom.setAttribute when unneeded.

---
 src/standard/x-styling.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/standard/x-styling.html b/src/standard/x-styling.html
index 4409e6535f..2975eeb99e 100644
--- a/src/standard/x-styling.html
+++ b/src/standard/x-styling.html
@@ -193,7 +193,7 @@
         }
         // note: using Polymer.dom here ensures that any attribute sets
         // will provoke distribution if necessary
-        node = Polymer.dom(node);
+        node = this._clientsReadied ? Polymer.dom(node) : node;
         serializeValueToAttribute.call(this, value, attribute, node);
       },