First rev of Safe DOM

pkg/mdv/test/template_element_test.dart

Index: pkg/mdv/test/template_element_test.dart
diff --git a/pkg/mdv/test/template_element_test.dart b/pkg/mdv/test/template_element_test.dart
index e90cf9c55ea5d5ca6bff9741292b487bcb591b50..a26d62b502441abef5f996615d15f685742e1486 100644
--- a/pkg/mdv/test/template_element_test.dart
+++ b/pkg/mdv/test/template_element_test.dart
@@ -40,7 +40,7 @@ templateElementTests() {
 
   createTestHtml(s) {
     var div = new DivElement();
-    div.innerHtml = s;
+    div.setInnerHtml(s, treeSanitizer: new NullTreeSanitizer());
     testDiv.append(div);
 
     for (var node in div.queryAll('*')) {
@@ -1779,3 +1779,10 @@ _deepToSymbol(value) {
   }
   return value;
 }
+
+/**
+ * Sanitizer which does nothing.
+ */
+class NullTreeSanitizer implements NodeTreeSanitizer {
+  void sanitizeTree(Node node) {}
+}