Initial work on ImageData.data.

tools/dom/idl/dart/dart.idl

 // This file introduces / supplements and forces Dart declarations.
 
 [Supplemental,
  Constructor]
 interface AudioContext {};
 
 [Supplemental]
 interface Document {
   [Suppressed] DOMObject getCSSCanvasContext(in DOMString contextId, in DOMString name, in long width, in long height);
   CanvasRenderingContext getCSSCanvasContext(in DOMString contextId, in DOMString name, in long width, in long height);
@@ skipping 43 matching lines @@
 [Supplemental]
 interface HTMLSelectElement {
   [Suppressed] void add([Optional=DefaultIsUndefined] in HTMLElement element, [Optional=DefaultIsUndefined] in HTMLElement before);
   [Suppressed, Custom] void remove();
   [Custom] void remove(in long index);
   [Custom] void remove(in HTMLOptionElement option);
 };
 
 [Supplemental]
 interface ImageData {
-  readonly attribute Uint8ClampedArray data;
+  [Custom] readonly attribute int[] data;
 };
 
 [Supplemental]
 interface HTMLMediaElement {
   // Adding media events.
   attribute EventListener oncanplay;
   attribute EventListener oncanplaythrough;
   attribute EventListener ondurationchange;
   attribute EventListener onemptied;
   attribute EventListener onended;
@@ skipping 262 matching lines @@
   [Suppressed] boolean send(in DOMString data) raises(DOMException);
 
   [Custom] void send(DOMString data) raises(DOMException);
   [Custom] void send(Blob data) raises(DOMException);
   [Custom] void send(ArrayBuffer data) raises(DOMException);
   [Custom] void send(ArrayBufferView data) raises(DOMException);
 };
 
 [Suppressed]
 interface Entity {};