Adds plumbing to pass WebUI mojo::Handle from browser to renderer

mojo/public/bindings/js/constants.h

Index: mojo/public/bindings/js/constants.h
diff --git a/mojo/public/bindings/js/constants.h b/mojo/public/bindings/js/constants.h
new file mode 100644
index 0000000000000000000000000000000000000000..4f22a7e46c6f8a0eb6ab226ba1e27e5ca51de201
--- /dev/null
+++ b/mojo/public/bindings/js/constants.h
@@ -0,0 +1,18 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MOJO_PUBLIC_BINDINGS_JS_CONSTANTS_H_
+#define MOJO_PUBLIC_BINDINGS_JS_CONSTANTS_H_
+
+namespace mojo {
+
+// Module name of the codec JavaScript module.
+extern const char kCodecModuleName[];
+
+// Module name of the connector JavaScript module.
+extern const char kConnectorModuleName[];
+
+}  // namespace mojo
+
+#endif  // MOJO_PUBLIC_BINDINGS_JS_CONSTANTS_H_