Another try at appendHtml and insertAdjacentHtml should be consistently sanitized

sdk/lib/svg/dartium/svg_dartium.dart

Index: sdk/lib/svg/dartium/svg_dartium.dart
diff --git a/sdk/lib/svg/dartium/svg_dartium.dart b/sdk/lib/svg/dartium/svg_dartium.dart
index d480db39b40ed558cc433b7678a3b1988051a140..63a74c64146d8fd9db139fc2263c619ad0a0b9fd 100644
--- a/sdk/lib/svg/dartium/svg_dartium.dart
+++ b/sdk/lib/svg/dartium/svg_dartium.dart
@@ -5498,11 +5498,12 @@ class SvgElement extends Element implements GlobalEventHandlers {
   }
 
   @DomName('Element.insertAdjacentHTML')
-  void insertAdjacentHtml(String where, String text) {
+  void insertAdjacentHtml(String where, String text, {NodeValidator validator,
+      NodeTreeSanitizer treeSanitizer}) {
     throw new UnsupportedError("Cannot invoke insertAdjacentHtml on SVG.");
   }
 
-  @DomName('Element.insertAdjacentHTML')
+  @DomName('Element.insertAdjacentElement')
   Element insertAdjacentElement(String where, Element element) {
     throw new UnsupportedError("Cannot invoke insertAdjacentElement on SVG.");
   }