Initial work on ImageData.data.

tests/html/instance_of_test.dart

 library InstanceOfTest;
 import '../../pkg/unittest/lib/unittest.dart';
 import '../../pkg/unittest/lib/html_config.dart';
 import 'dart:html';
 
 main() {
   CanvasElement canvas;
 
   canvas = new Element.tag('canvas');
   canvas.attributes['width'] = 100;
   canvas.attributes['height'] = 100;
   document.body.nodes.add(canvas);
 
   var isCanvasRenderingContext = predicate((x) => x is CanvasRenderingContext,
       'is a CanvasRenderingContext');
   var isCanvasRenderingContext2D = 
       predicate((x) => x is CanvasRenderingContext2D,
       'is a CanvasRenderingContext2D');
   var isElement = predicate((x) => x is Element, 'is an Element');
   var isCanvasElement = 
       predicate((x) => x is CanvasElement, 'is a CanvasElement');
   var isImageData = predicate((x) => x is ImageData, 'is an ImageData');
-  //var isCanvasPixelArray =
-  //  predicate((x) => x is CanvasPixelArray, 'is a CanvasPixelArray');
-  var isUint8ClampedArray = 
-      predicate((x) => x is Uint8ClampedArray, 'is a Uint8ClampedArray');
+  //var isUint8ClampedArray =
+  //  predicate((x) => x is Uint8ClampedArray, 'is a Uint8ClampedArray');
+  var isIntList =
+      predicate((x) => x is List<int>, 'is a List<int>');
 
   useHtmlConfiguration();
   test('Instanceof', () {
     expect(canvas, isNot(isCanvasRenderingContext));
     expect(canvas, isNot(isCanvasRenderingContext2D));
     expect(canvas, isElement);
     expect(canvas, isCanvasElement);
     expect(canvas, isNot(isImageData));
     // expect(canvas, isNot(isCanvasPixelArray));
 
@@ skipping 16 matching lines @@
     // expect(image, isNot(isCanvasPixelArray));
 
     // Include CanvasPixelArray since constructor and prototype are not
     // available until one is created.
     var bytes = image.data;
     expect(bytes, isNot(isCanvasRenderingContext));
     expect(bytes, isNot(isCanvasRenderingContext2D));
     expect(bytes, isNot(isElement));
     expect(bytes, isNot(isCanvasElement));
     expect(bytes, isNot(isImageData));
-    expect(bytes, isUint8ClampedArray);
+    expect(bytes, isIntList);
 
     // FIXME: Ensure this is an SpanElement when we next update
     // WebKit IDL.
     var span = new Element.tag('span');
     expect(span, isElement);
   });
 }