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

client/html/generated/html/frog/MouseEvent.dart

+
+class _MouseEventImpl extends _UIEventImpl implements MouseEvent native "*MouseEvent" {
+
+  final bool altKey;
+
+  final int button;
+
+  final int clientX;
+
+  final int clientY;
+
+  final bool ctrlKey;
+
+  final _ClipboardImpl dataTransfer;
+
+  final _NodeImpl fromElement;
+
+  final bool metaKey;
+
+  final int offsetX;
+
+  final int offsetY;
+
+  _EventTargetImpl get relatedTarget() => _FixHtmlDocumentReference(_relatedTarget);
+
+  _EventTargetImpl get _relatedTarget() native "return this.relatedTarget;";
+
+  final int screenX;
+
+  final int screenY;
+
+  final bool shiftKey;
+
+  final _NodeImpl toElement;
+
+  final int x;
+
+  final int y;
+
+  void _initMouseEvent(String type, bool canBubble, bool cancelable, _WindowImpl view, int detail, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, int button, _EventTargetImpl relatedTarget) native "this.initMouseEvent(type, canBubble, cancelable, view, detail, screenX, screenY, clientX, clientY, ctrlKey, altKey, shiftKey, metaKey, button, relatedTarget);";
+}