Remove Element#attributes.

sky/framework/inspector/dom-agent.sky

Index: sky/framework/inspector/dom-agent.sky
diff --git a/sky/framework/inspector/dom-agent.sky b/sky/framework/inspector/dom-agent.sky
index 23cb8f5c6598bd7c2481726fd251ca2acb29710f..b5894442fc49a1854d0412c4e0b4983ab83bce69 100644
--- a/sky/framework/inspector/dom-agent.sky
+++ b/sky/framework/inspector/dom-agent.sky
@@ -32,7 +32,7 @@ DOMAgent.prototype.serializeChildren_ = function(node) {
 
 DOMAgent.prototype.serializeAttributes_ = function(element) {
   var attributes = [];
-  var attrs = element.attributes;
+  var attrs = element.getAttributes();
   for (var i = 0; i < attrs.length; ++i) {
     var attr = attrs[i];
     attributes.push(attr.name);