Mojo JS Bindings: restore the ServiceProvider class, add an application test

services/js/js_app_bridge_module.h

 // 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_SERVICES_JS_MOJO_MODULE_H_
 #define MOJO_SERVICES_JS_MOJO_MODULE_H_
 
 #include "gin/gin_export.h"
 #include "v8/include/v8.h"
 
 namespace mojo {
 namespace js {
 
 class JSApp;
 
 // The JavaScript "services/public/js/mojo" module depends on this
 // built-in module. It provides the bridge between the JSApp class and
 // JavaScript.
 
-class MojoInternals {
+class AppBridge {
  public:
   static const char kModuleName[];
   static v8::Local<v8::Value> GetModule(JSApp* js_app, v8::Isolate* isolate);
 };
 
 }  // namespace js
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_JS_MOJO_MODULE_H_