Implement RenderImage and Image for Sky

sky/sdk/lib/framework/fn2.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.
 
 library fn;
 
 import 'app.dart';
 import 'dart:async';
 import 'dart:collection';
 import 'dart:mirrors';
@@ skipping 620 matching lines @@
     root.direction = direction;
   }
 }
 
 class FlexExpandingChild extends ParentDataNode {
   FlexExpandingChild(UINode content, [int flex = 1])
     : super(content, new FlexBoxParentData()..flex = flex);
 }
 
 class Image extends RenderNodeWrapper {
-  RenderCSSImage root;
-  RenderCSSImage createNode() => new RenderCSSImage(this, this.src, this.width, this.height);
+  RenderImage root;
+  RenderImage createNode() => new RenderImage(this.src, this.size);
 
   final String src;
-  final int width;
-  final int height;
+  final sky.Size size;
 
   Image({
     Object key,
-    this.width,
-    this.height,
-    this.src
+    this.src,
+    this.size
   }) : super(key: key);
 
   void syncRenderNode(UINode old) {
     super.syncRenderNode(old);
-    root.configure(this.src, this.width, this.height);
+    root.src = src;
+    root.requestedSize = size;
   }
 }
 
 
 Set<Component> _mountedComponents = new HashSet<Component>();
 Set<Component> _unmountedComponents = new HashSet<Component>();
 
 void _enqueueDidMount(Component c) {
   assert(!_notifingMountStatus);
   _mountedComponents.add(c);
@@ skipping 281 matching lines @@
     assert(root.parent is RenderView);
   }
 }
 
 class Text extends Component {
   Text(this.data) : super(key: '*text*');
   final String data;
   bool get interchangeable => true;
   UINode build() => new Paragraph(text: data);
 }