Generate dart:html bindings for Dartium as well as Frog. All unittests now pass (or are disabled fo…

client/html/generated/html/dartium/CanvasElement.dart

+
+class _CanvasElementImpl extends _ElementImpl implements CanvasElement {
+  _CanvasElementImpl._wrap(ptr) : super._wrap(ptr);
+
+  int get height() => _wrap(_ptr.height);
+
+  void set height(int value) { _ptr.height = _unwrap(value); }
+
+  int get width() => _wrap(_ptr.width);
+
+  void set width(int value) { _ptr.width = _unwrap(value); }
+
+  Object getContext(String contextId) {
+    return _wrap(_ptr.getContext(_unwrap(contextId)));
+  }
+
+  String toDataURL(String type) {
+    return _wrap(_ptr.toDataURL(_unwrap(type)));
+  }
+}