Refresh OTs

Author: captainbrosset

additional-data/origin-trials.json

@@ -606,6 +606,7 @@
   "object-object": [],
   "object-position": [],
   "object-view-box": [],
+  "observable": [],
   "oes-element-index-uint": [],
   "oes-fbo-render-mipmap": [],
   "oes-standard-derivatives": [],