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

client/html/generated/html/dartium/WebGLLoseContext.dart

+
+class _WebGLLoseContextImpl extends _DOMTypeBase implements WebGLLoseContext {
+  _WebGLLoseContextImpl._wrap(ptr) : super._wrap(ptr);
+
+  void loseContext() {
+    _ptr.loseContext();
+    return;
+  }
+
+  void restoreContext() {
+    _ptr.restoreContext();
+    return;
+  }
+}