ApplicationConnection devolution, part 3.1.

mojo/public/cpp/application/application_delegate.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_DELEGATE_H_
 #define MOJO_PUBLIC_APPLICATION_APPLICATION_DELEGATE_H_
 
 #include <string>
 
 #include "mojo/public/cpp/application/service_provider_impl.h"
 #include "mojo/public/cpp/system/macros.h"
 
 namespace mojo {
 
-class ApplicationConnection;
 class ApplicationImpl;
 
 // An abstract class that the application may subclass to control various
 // behaviors of ApplicationImpl.
 class ApplicationDelegate {
  public:
   ApplicationDelegate();
   virtual ~ApplicationDelegate();
 
   // Called exactly once before any other method.
   virtual void Initialize(ApplicationImpl* app);
 
   // Override this method to configure what services a connection supports when
   // being connected to from an app (|service_provider_impl| will never be
   // null). Return false to reject the connection entirely.
   virtual bool ConfigureIncomingConnection(
       ServiceProviderImpl* service_provider_impl);
 
   // Called before ApplicationImpl::Terminate(). After returning from this call
   // the delegate can no longer rely on the main run loop still running.
   virtual void Quit();
 
  private:
   MOJO_DISALLOW_COPY_AND_ASSIGN(ApplicationDelegate);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_APPLICATION_APPLICATION_DELEGATE_H_