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

services/js/mojo_bridge_module.cc

-// 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.
-
-#include "services/js/mojo_bridge_module.h"
-
-#include "gin/arguments.h"
-#include "gin/converter.h"
-#include "gin/object_template_builder.h"
-#include "gin/per_isolate_data.h"
-#include "mojo/edk/js/handle.h"
-#include "services/js/js_app.h"
-
-namespace mojo {
-namespace js {
-
-namespace {
-
-gin::WrapperInfo g_wrapper_info = {gin::kEmbedderNativeGin};
-
-}  // namespace
-
-const char MojoInternals::kModuleName[] = "services/js/bridge";
-
-v8::Local<v8::Value> MojoInternals::GetModule(JSApp* js_app,
-                                              v8::Isolate* isolate) {
-  gin::PerIsolateData* data = gin::PerIsolateData::From(isolate);
-  v8::Local<v8::ObjectTemplate> templ =
-      data->GetObjectTemplate(&g_wrapper_info);
-
-  if (templ.IsEmpty()) {
-    templ = gin::ObjectTemplateBuilder(isolate)
-                .SetMethod("quit",
-                           base::Bind(&JSApp::Quit, base::Unretained(js_app)))
-                .Build();
-    data->SetObjectTemplate(&g_wrapper_info, templ);
-  }
-
-  return templ->NewInstance();
-}
-
-}  // namespace js
-}  // namespace mojo