[Effen] remove more CSS

sky/framework/layout.dart

 library layout;
 
 import 'node.dart';
 import 'dart:sky' as sky;
 import 'dart:collection';
 
 // UTILS
 
 // Bridge to legacy CSS-like style specification
 // Eventually we'll replace this with something else
@@ skipping 326 matching lines @@
 
 class FlexBoxParentData extends CSSParentData {
   int flex;
   void merge(FlexBoxParentData other) {
     if (other.flex != null)
       flex = other.flex;
     super.merge(other);
   }
 }
 
-enum FlexDirection { Row }
+enum FlexDirection { Row, Column }
 
 class RenderCSSFlex extends RenderCSSContainer {
 
   RenderCSSFlex(debug, FlexDirection direction) : _direction = direction, super(debug);
 
   FlexDirection _direction;
   FlexDirection get direction => _direction;
   void set direction (FlexDirection value) {
     _direction = value;
     markNeedsLayout();
   }
 
   void setupPos(RenderNode child) {
     if (child.parentData is! FlexBoxParentData)
       child.parentData = new FlexBoxParentData();
   }
 
   static final Style _displayFlex = new Style('display:flex');
   static final Style _displayFlexRow = new Style('flex-direction:row');
+  static final Style _displayFlexColumn = new Style('flex-direction:column');
 
   String stylesToClasses(List<Style> styles) {
     var settings = _displayFlex._className;
     switch (_direction) {
-      case FlexDirection.Row: settings += ' ' + _displayFlexRow._className;
+      case FlexDirection.Row: settings += ' ' + _displayFlexRow._className; break;
+      case FlexDirection.Column: settings += ' ' + _displayFlexColumn._className; break;
     }
     return super.stylesToClasses(styles) + ' ' + settings;
   }
 
   void markNeedsLayout() {
     super.markNeedsLayout();
 
     // pretend we did the layout:
     RenderCSS child = _firstChild;
     while (child != null) {
@@ skipping 92 matching lines @@
   print(prefix + node.toString() + _attributes(node));
   var children = node.getChildNodes();
   prefix = prefix + '  ';
   for (var child in children)
     _serialiseDOM(child, prefix);
 }
 
 void dumpState() {
   _serialiseDOM(sky.document);
 }