_ChildrenElementList implements removeRange

tools/dom/templates/html/impl/impl_Element.darttemplate

Index: tools/dom/templates/html/impl/impl_Element.darttemplate
diff --git a/tools/dom/templates/html/impl/impl_Element.darttemplate b/tools/dom/templates/html/impl/impl_Element.darttemplate
index 335ae8fb2d9bfb6e6ca0ce9b3dc43a74a5baa0c4..243c9609a0202a31aee160e0b700c31ac4c33349 100644
--- a/tools/dom/templates/html/impl/impl_Element.darttemplate
+++ b/tools/dom/templates/html/impl/impl_Element.darttemplate
@@ -81,8 +81,7 @@ class _ChildrenElementList extends ListBase<Element>
     for (var e in removed) e.remove();
   }
 
-  void setRange(int start, int end, Iterable<Element> iterable,
-                [int skipCount = 0]) {
+  void fillRange(int start, int end, [Element fillValue]) {
     throw new UnimplementedError();
   }
 
@@ -90,7 +89,12 @@ class _ChildrenElementList extends ListBase<Element>
     throw new UnimplementedError();
   }
 
-  void fillRange(int start, int end, [Element fillValue]) {
+  void removeRange(int start, int end) {
+    throw new UnimplementedError();
+  }
+
+  void setRange(int start, int end, Iterable<Element> iterable,
+                [int skipCount = 0]) {
     throw new UnimplementedError();
   }