Mojo JS bindings: change module loading solution.

mojo/public/js/new_bindings/buffer.js

Index: mojo/public/js/new_bindings/buffer.js
diff --git a/mojo/public/js/new_bindings/buffer.js b/mojo/public/js/new_bindings/buffer.js
index e35f69513fb85b0c5be70c7e78fc4fb18c9e88a0..7c0853c107d398d871fae7ab3a65fec32d26ba22 100644
--- a/mojo/public/js/new_bindings/buffer.js
+++ b/mojo/public/js/new_bindings/buffer.js
@@ -2,7 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-define("mojo/public/js/buffer", function() {
+(function() {
+  var internal = mojoBindings.internal;
 
   var kHostIsLittleEndian = (function () {
     var endianArrayBuffer = new ArrayBuffer(2);
@@ -150,7 +151,5 @@ define("mojo/public/js/buffer", function() {
     this.dataView.setFloat64(offset, value, kHostIsLittleEndian);
   }
 
-  var exports = {};
-  exports.Buffer = Buffer;
-  return exports;
-});
+  internal.Buffer = Buffer;
+})();