Update BoxDecoration and RenderParagraph to use sky.Color instead of int.

sky/examples/raw/sector_layout.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 'dart:math' as math;
 import 'dart:sky' as sky;
 import 'package:sky/framework/app.dart';
 import 'package:sky/framework/rendering/box.dart';
 import 'package:sky/framework/rendering/node.dart';
 
@@ skipping 445 matching lines @@
     if (theta > child.deltaTheta)
       return false;
     child.hitTest(result, radius: radius, theta: theta);
     result.add(this);
     return true;
   }
   
 }
 
 class RenderSolidColor extends RenderDecoratedSector {
-  RenderSolidColor(int backgroundColor, {
+  RenderSolidColor(sky.Color backgroundColor, {
     this.desiredDeltaRadius: double.INFINITY,
     this.desiredDeltaTheta: kTwoPi
   }) : this.backgroundColor = backgroundColor,
        super(new BoxDecoration(backgroundColor: backgroundColor));
 
   double desiredDeltaRadius;
   double desiredDeltaTheta;
-  final int backgroundColor;
+  final sky.Color backgroundColor;
 
   SectorDimensions getIntrinsicDimensions(SectorConstraints constraints, double radius) {
     return new SectorDimensions.withConstraints(constraints, deltaTheta: 1.0); // 1.0 radians
   }
 
   void performLayout() {
     deltaRadius = constraints.constrainDeltaRadius(desiredDeltaRadius);
     deltaTheta = constraints.constrainDeltaTheta(desiredDeltaTheta);
   }
 
   void handlePointer(sky.PointerEvent event) {
     if (event.type == 'pointerdown')
-      decoration = new BoxDecoration(backgroundColor: 0xFFFF0000);
+      decoration = new BoxDecoration(backgroundColor: sky.Color.red);
     else if (event.type == 'pointerup')
       decoration = new BoxDecoration(backgroundColor: backgroundColor);
   }
 }
 
 AppView app;
 
 void main() {
 
   var rootCircle = new RenderSectorRing(padding: 20.0);
-  rootCircle.add(new RenderSolidColor(0xFF00FFFF, desiredDeltaTheta: kTwoPi * 0.15));
-  rootCircle.add(new RenderSolidColor(0xFF0000FF, desiredDeltaTheta: kTwoPi * 0.4));
+  rootCircle.add(new RenderSolidColor(const sky.Color(0xFF00FFFF), desiredDeltaTheta: kTwoPi * 0.15));
+  rootCircle.add(new RenderSolidColor(sky.Color.blue, desiredDeltaTheta: kTwoPi * 0.4));
   var stack = new RenderSectorSlice(padding: 2.0);
-  stack.add(new RenderSolidColor(0xFFFFFF00, desiredDeltaRadius: 20.0));
-  stack.add(new RenderSolidColor(0xFFFF9000, desiredDeltaRadius: 20.0));
-  stack.add(new RenderSolidColor(0xFF00FF00));
+  stack.add(new RenderSolidColor(const sky.Color(0xFFFFFF00), desiredDeltaRadius: 20.0));
+  stack.add(new RenderSolidColor(const sky.Color(0xFFFF9000), desiredDeltaRadius: 20.0));
+  stack.add(new RenderSolidColor(sky.Color.green));
   rootCircle.add(stack);
 
   var root = new RenderBoxToRenderSectorAdapter(innerRadius: 50.0, child: rootCircle);
   app = new AppView(root);
 }