Removed fixed dependencies

packages/csslib/lib/src/analyzer.dart

 // 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.
 
 part of csslib.parser;
 
 // TODO(terry): Add optimizing phase to remove duplicated selectors in the same
 //              selector group (e.g., .btn, .btn { color: red; }).  Also, look
 //              at simplifying selectors expressions too (much harder).
 // TODO(terry): Detect invalid directive usage.  All @imports must occur before
@@ skipping 397 matching lines @@
   static bool replace(
       StyleSheet styleSheet, RuleSet ruleSet, List<RuleSet> newRules) {
     var visitor = new _MediaRulesReplacer(ruleSet, newRules);
     visitor.visitStyleSheet(styleSheet);
     return visitor._foundAndReplaced;
   }
 
   _MediaRulesReplacer(this._ruleSet, this._newRules);
 
   visitMediaDirective(MediaDirective node) {
-    var index = node.rulesets.indexOf(_ruleSet);
+    var index = node.rules.indexOf(_ruleSet);
     if (index != -1) {
-      node.rulesets.insertAll(index + 1, _newRules);
+      node.rules.insertAll(index + 1, _newRules);
       _foundAndReplaced = true;
     }
   }
 }
 
 /**
  * Expand all @include at the top-level the ruleset(s) associated with the
  * mixin.
  */
 class TopLevelIncludes extends Visitor {
@@ skipping 573 matching lines @@
             isLastNone = false;
           }
         } else {
           isLastNone = simpleSeq.isCombinatorNone;
         }
       }
     }
     super.visitSelectorGroup(node);
   }
 }