Refresh dart:dom from WebKit.

client/dom/generated/src/frog/Uint8Array.dart

 
 class Uint8Array extends ArrayBufferView implements List<int> native "*Uint8Array" {
 
   factory Uint8Array(int length) =>  _construct(length);
 
   factory Uint8Array.fromList(List<int> list) => _construct(list);
 
   factory Uint8Array.fromBuffer(ArrayBuffer buffer) => _construct(buffer);
 
   static _construct(arg) native 'return new Uint8Array(arg);';
 
   static final int BYTES_PER_ELEMENT = 1;
 
   int get length() native "return this.length;";
 
   int operator[](int index) native;
 
   void operator[]=(int index, int value) native;
 
+  void setElements(Object array, [int offset = null]) native;
+
   Uint8Array subarray(int start, [int end = null]) native;
 }