Revert of Deletes mojo::Callback

services/shell/public/cpp/shell_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_SHELL_CONNECTION_H_
 #define SERVICES_SHELL_PUBLIC_CPP_SHELL_CONNECTION_H_
 
 #include <memory>
 #include <utility>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/scoped_vector.h"
 #include "mojo/public/cpp/bindings/binding.h"
+#include "mojo/public/cpp/bindings/callback.h"
 #include "mojo/public/cpp/system/core.h"
 #include "services/shell/public/cpp/shell_client.h"
 #include "services/shell/public/interfaces/connector.mojom.h"
 #include "services/shell/public/interfaces/shell_client.mojom.h"
 
 namespace shell {
 
 class Connector;
 
 // Encapsulates a connection to the Mojo Shell in two parts:
@@ skipping 71 matching lines @@
   bool should_run_connection_lost_closure_ = false;
 
   base::Closure connection_lost_closure_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellConnection);
 };
 
 }  // namespace shell
 
 #endif  // SERVICES_SHELL_PUBLIC_CPP_SHELL_CONNECTION_H_