Begin implementing V8 bindings for Mojo

mojo/public/bindings/js/mojo.cc

+// Copyright 2013 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 "mojo/public/bindings/js/mojo.h"
+
+#include "gin/converter.h"
+#include "gin/per_isolate_data.h"
+#include "gin/wrapper_info.h"
+#include "mojo/public/bindings/js/core.h"
+
+namespace mojo {
+namespace js {
+
+namespace {
+
+gin::WrapperInfo g_mojo_wrapper_info = {};
+
+}
+
+v8::Local<v8::ObjectTemplate> GetMojoTemplate(v8::Isolate* isolate) {
+  gin::PerIsolateData* data = gin::PerIsolateData::From(isolate);
+  v8::Local<v8::ObjectTemplate> templ = data->GetObjectTemplate(
+      &g_mojo_wrapper_info);
+  if (templ.IsEmpty()) {
+    templ = v8::ObjectTemplate::New();
+    templ->Set(gin::StringToSymbol(isolate, "core"), GetCoreTemplate(isolate));
+    data->SetObjectTemplate(&g_mojo_wrapper_info, templ);
+  }
+  return templ;
+}
+
+}  // namespace js
+}  // namespace mojo