Put code in //services/js in namespace js

services/js/js_app_shell.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_JS_APP_SHELL_H_
-#define MOJO_SERVICES_JS_JS_APP_SHELL_H_
+#ifndef SERVICES_JS_JS_APP_SHELL_H_
+#define SERVICES_JS_JS_APP_SHELL_H_
 
 #include "gin/handle.h"
 #include "gin/wrappable.h"
 #include "mojo/edk/js/handle.h"
 
-namespace mojo {
 namespace js {
 
 class JSApp;
 
 class JSAppShell : public gin::Wrappable<JSAppShell> {
  public:
   static gin::WrapperInfo kWrapperInfo;
   static gin::Handle<JSAppShell> Create(v8::Isolate* isolate, JSApp* js_app);
 
  private:
   explicit JSAppShell(JSApp* js_app);
   ~JSAppShell() override;
 
   // gin::WrappableBase
   gin::ObjectTemplateBuilder GetObjectTemplateBuilder(v8::Isolate* isolate)
       override;
 
   // Bound to JS method "connectToApplication".
   void ConnectToApplication(const std::string& application_url,
                             v8::Handle<v8::Value> service_provider);
 
   JSApp* js_app_;
 
   DISALLOW_COPY_AND_ASSIGN(JSAppShell);
 };
 
 }  // namespace js
-}  // namespace mojo
 
-#endif  // MOJO_SERVICES_JS_JS_APP_SHELL_H_
+#endif  // SERVICES_JS_JS_APP_SHELL_H_