Split getIntrinsicDimensions into four pieces

sky/sdk/lib/framework/rendering/flex.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 import 'box.dart';
 import 'object.dart';
 
 class FlexBoxParentData extends BoxParentData with ContainerParentDataMixin<RenderBox> {
   int flex;
   void merge(FlexBoxParentData other) {
@@ skipping 21 matching lines @@
       _direction = value;
       markNeedsLayout();
     }
   }
 
   void setParentData(RenderBox child) {
     if (child.parentData is! FlexBoxParentData)
       child.parentData = new FlexBoxParentData();
   }
 
+  // We don't currently support this for RenderFlex
+  double getMinIntrinsicWidth(BoxConstraints constraints) {
+    assert(false);
+    return constraints.constrainWidth(0.0);
+  }
+
+  // We don't currently support this for RenderFlex
+  double getMaxIntrinsicWidth(BoxConstraints constraints) {
+    assert(false);
+    return constraints.constrainWidth(0.0);
+  }
+
+  // We don't currently support this for RenderFlex
+  double getMinIntrinsicHeight(BoxConstraints constraints) {
+    assert(false);
+    return constraints.constrainHeight(0.0);
+  }
+
+  // We don't currently support this for RenderFlex
+  double getMaxIntrinsicHeight(BoxConstraints constraints) {
+    assert(false);
+    return constraints.constrainHeight(0.0);
+  }
+
   bool get sizedByParent => true;
   void performResize() {
     size = constraints.constrain(new Size(constraints.maxWidth, constraints.maxHeight));
     assert(size.height < double.INFINITY);
     assert(size.width < double.INFINITY);
   }
 
   int _getFlex(RenderBox child) {
     assert(child.parentData is FlexBoxParentData);
     return child.parentData.flex != null ? child.parentData.flex : 0;
@@ skipping 59 matching lines @@
   }
 
   void hitTestChildren(HitTestResult result, { Point position }) {
     defaultHitTestChildren(result, position: position);
   }
 
   void paint(RenderObjectDisplayList canvas) {
     defaultPaint(canvas);
   }
 }