Put code in //services/js in namespace js

services/js/js_app_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/js_app_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 AppBridge::kModuleName[] = "services/js/app_bridge";
 
 v8::Local<v8::Value> AppBridge::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