Format all files under tools and utils directory.

tools/dom/src/NodeValidatorBuilder.dart

 // Copyright (c) 2013, 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.
 
 part of dart.dom.html;
 
 /**
  * Class which helps construct standard node validation policies.
  *
  * By default this will not accept anything, but the 'allow*' functions can be
@@ skipping 136 matching lines @@
    * This will allow the elements as custom tags (such as <x-foo></x-foo>),
    * but will not allow tag extensions. Use [allowTagExtension] to allow
    * tag extensions.
    */
   void allowCustomElement(String tagName,
       {UriPolicy uriPolicy,
       Iterable<String> attributes,
       Iterable<String> uriAttributes}) {
     var tagNameUpper = tagName.toUpperCase();
     var attrs = attributes
-        ?.map /*<String>*/ ((name) => '$tagNameUpper::${name.toLowerCase()}');
+        ?.map/*<String>*/((name) => '$tagNameUpper::${name.toLowerCase()}');
     var uriAttrs = uriAttributes
-        ?.map /*<String>*/ ((name) => '$tagNameUpper::${name.toLowerCase()}');
+        ?.map/*<String>*/((name) => '$tagNameUpper::${name.toLowerCase()}');
     if (uriPolicy == null) {
       uriPolicy = new UriPolicy();
     }
 
     add(new _CustomElementNodeValidator(
         uriPolicy, [tagNameUpper], attrs, uriAttrs, false, true));
   }
 
   /**
    * Allow custom tag extensions with the specified type name and specified
    * attributes.
    *
    * This will allow tag extensions (such as <div is="x-foo"></div>),
    * but will not allow custom tags. Use [allowCustomElement] to allow
    * custom tags.
    */
   void allowTagExtension(String tagName, String baseName,
       {UriPolicy uriPolicy,
       Iterable<String> attributes,
       Iterable<String> uriAttributes}) {
     var baseNameUpper = baseName.toUpperCase();
     var tagNameUpper = tagName.toUpperCase();
     var attrs = attributes
-        ?.map /*<String>*/ ((name) => '$baseNameUpper::${name.toLowerCase()}');
+        ?.map/*<String>*/((name) => '$baseNameUpper::${name.toLowerCase()}');
     var uriAttrs = uriAttributes
-        ?.map /*<String>*/ ((name) => '$baseNameUpper::${name.toLowerCase()}');
+        ?.map/*<String>*/((name) => '$baseNameUpper::${name.toLowerCase()}');
     if (uriPolicy == null) {
       uriPolicy = new UriPolicy();
     }
 
     add(new _CustomElementNodeValidator(uriPolicy,
         [tagNameUpper, baseNameUpper], attrs, uriAttrs, true, false));
   }
 
   void allowElement(String tagName,
       {UriPolicy uriPolicy,
@@ skipping 249 matching lines @@
     return false;
   }
 
   bool allowsAttribute(Element element, String attributeName, String value) {
     if (attributeName == 'is' || attributeName.startsWith('on')) {
       return false;
     }
     return allowsElement(element);
   }
 }