Split getIntrinsicDimensions into four pieces

sky/tests/raw/render_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 '../resources/third_party/unittest/unittest.dart';
 import '../resources/unit.dart';
 import '../resources/display_list.dart';
 import 'dart:sky' as sky;
 import 'package:sky/framework/app.dart';
 import 'package:sky/framework/rendering/block.dart';
 import 'package:sky/framework/rendering/box.dart';
 import 'package:sky/framework/rendering/flex.dart';
 
 class RenderSolidColor extends RenderDecoratedBox {
   final sky.Size desiredSize;
   final sky.Color backgroundColor;
 
   RenderSolidColor(sky.Color backgroundColor, { this.desiredSize: sky.Size.infinite })
       : backgroundColor = backgroundColor,
         super(decoration: new BoxDecoration(backgroundColor: backgroundColor)) {
   }
 
-  sky.Size getIntrinsicDimensions(BoxConstraints constraints) {
-    return constraints.constrain(desiredSize);
+  double getMinIntrinsicWidth(BoxConstraints constraints) {
+    return constraints.constrain(desiredSize.width);
+  }
+
+  double getMaxIntrinsicWidth(BoxConstraints constraints) {
+    return constraints.constrain(desiredSize.width);
+  }
+
+  double getMinIntrinsicHeight(BoxConstraints constraints) {
+    return constraints.constrain(desiredSize.height);
+  }
+
+  double getMaxIntrinsicHeight(BoxConstraints constraints) {
+    return constraints.constrain(desiredSize.height);
   }
 
   void performLayout() {
     size = constraints.constrain(desiredSize);
   }
 
   void handleEvent(sky.Event event) {
     if (event.type == 'pointerdown')
       decoration = new BoxDecoration(backgroundColor: const sky.Color(0xFFFF0000));
     else if (event.type == 'pointerup')
@@ skipping 53 matching lines @@
     flexRoot.add(decoratedRow);
     decoratedRow.parentData.flex = 3;
     app = new TestApp(root);
 
     expect(root.size.width, equals(sky.view.width));
     expect(root.size.height, equals(sky.view.height));
     expect(renderBlock.size.width, equals(sky.view.width - 20.0));
 
   });
 }