Further refine mojo_example_apptests.

mojo/public/cpp/application/application_impl.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_PUBLIC_APPLICATION_APPLICATION_IMPL_H_
 #define MOJO_PUBLIC_APPLICATION_APPLICATION_IMPL_H_
 #include <vector>
 
 #include "mojo/public/cpp/application/application_connection.h"
 #include "mojo/public/cpp/application/lib/service_connector.h"
@@ skipping 58 matching lines @@
   // service implementation of the interface identified by |Interface|.
   template <typename Interface>
   void ConnectToService(const std::string& application_url,
                         InterfacePtr<Interface>* ptr) {
     ConnectToApplication(application_url)->ConnectToService(ptr);
   }
 
   // Wait for the ShellPtr's Initialize message.
   bool WaitForInitialize();
 
+  // Unbind the shell from this application and return its handle.
+  ScopedMessagePipeHandle UnbindShell();
+
+  // Application implementation.
+  virtual void Initialize(Array<String> args) override;
+
  private:
   class ShellPtrWatcher;
 
   void BindShell(ScopedMessagePipeHandle shell_handle);
   void ClearConnections();
   void OnShellError() {
     ClearConnections();
     Terminate();
   };
 
   // Quits the main run loop for this application.
   static void Terminate();
 
   // Application implementation.
-  virtual void Initialize(Array<String> args) override;
   virtual void AcceptConnection(const String& requestor_url,
                                 ServiceProviderPtr provider) override;
 
   typedef std::vector<internal::ServiceRegistry*> ServiceRegistryList;
 
   bool initialized_;
   ServiceRegistryList incoming_service_registries_;
   ServiceRegistryList outgoing_service_registries_;
   ApplicationDelegate* delegate_;
   ShellPtr shell_;
   ShellPtrWatcher* shell_watch_;
   std::vector<std::string> args_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(ApplicationImpl);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_APPLICATION_APPLICATION_IMPL_H_