First rev of Safe DOM

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

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 part of $LIBRARYNAME;
 
 @Experimental
 $(ANNOTATIONS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
@@ skipping 114 matching lines @@
 }''';
     document.head.append(style);
   }
 
   /**
    * A mapping of names to Custom Syntax objects. See [CustomBindingSyntax] for
    * more information.
    */
   @Experimental
   static Map<String, CustomBindingSyntax> syntax = {};
+
+  // An override to place the contents into content rather than as child nodes.
+  void setInnerHtml(String html,
+    {NodeValidator validator, NodeTreeSanitizer treeSanitizer}) {
+    text = null;
+    var fragment = createFragment(
+        html, validator: validator, treeSanitizer: treeSanitizer);
+
+    content.append(fragment);
+  }
 }