Revert "Patched in Dartium JsInterop"

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

Index: tools/dom/templates/html/impl/impl_DocumentFragment.darttemplate
diff --git a/tools/dom/templates/html/impl/impl_DocumentFragment.darttemplate b/tools/dom/templates/html/impl/impl_DocumentFragment.darttemplate
index dd4d70b8a714156b6dd88066c8d5bd117210f52a..122b6f982cae05c3f4cd53a64c186316837c2b91 100644
--- a/tools/dom/templates/html/impl/impl_DocumentFragment.darttemplate
+++ b/tools/dom/templates/html/impl/impl_DocumentFragment.darttemplate
@@ -38,7 +38,7 @@ $endif
     return _docChildren;
   }
 
-  set children(List<Element> value) {
+  void set children(List<Element> value) {
     // Copy list first since we don't want liveness during iteration.
     List copy = new List.from(value);
     var children = this.children;
@@ -58,7 +58,12 @@ $endif
    * [CSS selector specification](http://www.w3.org/TR/css3-selectors/).
    */
   ElementList<Element> querySelectorAll(String selectors) =>
+$if JSINTEROP
+    _querySelectorAll(selectors);
+$else
     new _FrozenElementList._wrap(_querySelectorAll(selectors));
+$endif
+
 
   String get innerHtml {
     final e = new Element.tag("div");
@@ -66,7 +71,7 @@ $endif
     return e.innerHtml;
   }
 
-  set innerHtml(String value) {
+  void set innerHtml(String value) {
     this.setInnerHtml(value);
   }