Revert of Deletes mojo::Callback

services/shell/public/cpp/connection.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 SERVICES_SHELL_PUBLIC_CPP_CONNECTION_H_
 #define SERVICES_SHELL_PUBLIC_CPP_CONNECTION_H_
 
 #include <stdint.h>
 
 #include <string>
 #include <utility>
 
-#include "base/callback_forward.h"
 #include "base/memory/weak_ptr.h"
 #include "services/shell/public/cpp/connect.h"
 #include "services/shell/public/cpp/identity.h"
 #include "services/shell/public/cpp/interface_registry.h"
 #include "services/shell/public/cpp/remote_interface_registry.h"
 #include "services/shell/public/interfaces/connector.mojom.h"
 #include "services/shell/public/interfaces/interface_provider.mojom.h"
 
 namespace shell {
 
@@ skipping 104 matching lines @@
   // time this function is called. When IsPending() returns true, this function
   // will return mojom::kInvalidInstanceID. Use
   // AddConnectionCompletedClosure() to schedule a closure to be run when the
   // connection is processed by the shell and remote id is available.
   virtual uint32_t GetRemoteInstanceID() const = 0;
 
   // Register a closure to be run when the connection has been completed by the
   // shell and remote metadata is available. Useful only for connections created
   // via Connector::Connect(). Once the connection is complete, metadata is
   // available immediately.
-  virtual void AddConnectionCompletedClosure(const base::Closure& callback) = 0;
+  virtual void AddConnectionCompletedClosure(const mojo::Closure& callback) = 0;
 
   // Returns true if the Shell allows |interface_name| to be exposed to the
   // remote application.
   virtual bool AllowsInterface(const std::string& interface_name) const = 0;
 
   // Returns a raw pointer to the InterfaceProvider at the remote end.
   virtual mojom::InterfaceProvider* GetRemoteInterfaceProvider() = 0;
 
  protected:
   // Returns the InterfaceRegistry that implements the mojom::InterfaceProvider
   // exposed to the remote application.
   virtual InterfaceRegistry* GetInterfaceRegistry() = 0;
 
   // Returns an object encapsulating a remote InterfaceProvider.
   virtual RemoteInterfaceRegistry* GetRemoteInterfaceRegistry() = 0;
 
   virtual base::WeakPtr<Connection> GetWeakPtr() = 0;
 };
 
 }  // namespace shell
 
 #endif  // SERVICES_SHELL_PUBLIC_CPP_CONNECTION_H_