Implement WebGL extensions.

components/script/dom/webidls/OESVertexArrayObject.webidl

@@ -0,0 +1,17 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+/*
+ * WebGL IDL definitions from the Khronos specification:
+ * https://www.khronos.org/registry/webgl/extensions/OES_vertex_array_object/
+ */
+
+[NoInterfaceObject]
+interface OESVertexArrayObject {
+    const unsigned long VERTEX_ARRAY_BINDING_OES = 0x85B5;
+
+    WebGLVertexArrayObjectOES? createVertexArrayOES();
+    void deleteVertexArrayOES(WebGLVertexArrayObjectOES? arrayObject);
+    boolean isVertexArrayOES(WebGLVertexArrayObjectOES? arrayObject);
+    void bindVertexArrayOES(WebGLVertexArrayObjectOES? arrayObject);
+};