Updates for the next sdk in the web-ui master branch

lib/web_ui.dart

Index: lib/web_ui.dart
diff --git a/lib/web_ui.dart b/lib/web_ui.dart
index 40da1bc4fab5e2a1648336bf1b3199b0ed176c75..3bd565b2538c4d23e421ba5ef6448af625a045da 100644
--- a/lib/web_ui.dart
+++ b/lib/web_ui.dart
@@ -343,6 +343,7 @@ abstract class WebComponent implements Element {
 
   Node get nextNode => host.nextNode;
 
+  String get nodeName => host.nodeName;
   Document get document => host.document;
 
   Node get previousNode => host.previousNode;
@@ -384,6 +385,12 @@ abstract class WebComponent implements Element {
     host.classes = value;
   }
 
+  CssRect get contentEdge => host.contentEdge;
+  CssRect get paddingEdge => host.paddingEdge;
+  CssRect get borderEdge => host.borderEdge;
+  CssRect get marginEdge => host.marginEdge;
+
+
   Map<String, String> getNamespacedAttributes(String namespace) =>
       host.getNamespacedAttributes(namespace);
 
@@ -528,8 +535,8 @@ abstract class WebComponent implements Element {
 
   int get $dom_childElementCount => host.$dom_childElementCount;
 
-  String get $dom_className => host.$dom_className;
-  set $dom_className(String value) { host.$dom_className = value; }
+  String get className => host.className;
+  set className(String value) { host.className = value; }
 
   @deprecated
   int get clientHeight => client.height;