import support (removed @include)

lib/visitor.dart

Index: lib/visitor.dart
diff --git a/lib/visitor.dart b/lib/visitor.dart
index 6bed768f530f5050018acac36b70a88bb5eae714..36210b8051729703d41600e3f30d75a3f9d69eaf 100644
--- a/lib/visitor.dart
+++ b/lib/visitor.dart
@@ -26,7 +26,6 @@ abstract class VisitorBase {
   void visitKeyFrameDirective(KeyFrameDirective node);
   void visitKeyFrameBlock(KeyFrameBlock node);
   void visitFontFaceDirective(FontFaceDirective node);
-  void visitIncludeDirective(IncludeDirective node);
   void visitStyletDirective(StyletDirective node);
   void visitNamespaceDirective(NamespaceDirective node);
 
@@ -166,12 +165,6 @@ class Visitor implements VisitorBase {
     visitDeclarationGroup(node._declarations);
   }
 
-  void visitIncludeDirective(IncludeDirective node) {
-    if (node._stylesheet != null) {
-      visitStyleSheet(node._stylesheet);
-    }
-  }
-
   void visitStyletDirective(StyletDirective node) {
     _visitNodeList(node._rulesets);
   }