Eliminate Connector::Connect(), Connection, etc.

services/service_manager/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_SERVICE_MANAGER_PUBLIC_CPP_CONNECTION_H_
-#define SERVICES_SERVICE_MANAGER_PUBLIC_CPP_CONNECTION_H_
-
-#include "base/memory/weak_ptr.h"
-#include "services/service_manager/public/cpp/identity.h"
-#include "services/service_manager/public/cpp/interface_provider.h"
-#include "services/service_manager/public/interfaces/connector.mojom.h"
-
-namespace service_manager {
-
-class InterfaceProvider;
-
-// Represents a connection to another application. An implementation of this
-// interface is returned from Connector::Connect().
-class Connection {
- public:
-  virtual ~Connection() {}
-
-  enum class State {
-    // The service manager has not yet processed the connection.
-    PENDING,
-
-    // The service manager processed the connection and it was established.
-    // GetResult() returns mojom::ConnectionResult::SUCCESS.
-    CONNECTED,
-
-    // The service manager processed the connection and establishment was
-    // prevented by an error, call GetResult().
-    DISCONNECTED
-  };
-
-  class TestApi {
-   public:
-    explicit TestApi(Connection* connection) : connection_(connection) {}
-    base::WeakPtr<Connection> GetWeakPtr() {
-      return connection_->GetWeakPtr();
-    }
-
-   private:
-    Connection* connection_;
-  };
-
-  // Binds |ptr| to an implementation of Interface in the remote application.
-  // |ptr| can immediately be used to start sending requests to the remote
-  // interface.
-  template <typename Interface>
-  void GetInterface(mojo::InterfacePtr<Interface>* ptr) {
-    GetRemoteInterfaces()->GetInterface(ptr);
-  }
-  template <typename Interface>
-  void GetInterface(mojo::InterfaceRequest<Interface> request) {
-    GetRemoteInterfaces()->GetInterface(std::move(request));
-  }
-
-  // Returns the remote identity. While the connection is in the pending state,
-  // the user_id() field will be the value passed via Connect(). After the
-  // connection is completed, it will change to the value assigned by the
-  // service manager. Call AddConnectionCompletedClosure() to schedule a closure
-  // to be run when the resolved user id is available.
-  virtual const Identity& GetRemoteIdentity() const = 0;
-
-  // Register a handler to receive an error notification on the pipe to the
-  // remote application's InterfaceProvider.
-  virtual void SetConnectionLostClosure(const base::Closure& handler) = 0;
-
-  // Returns the result of the connection. This function should only be called
-  // when the connection state is not pending. Call
-  // AddConnectionCompletedClosure() to schedule a closure to be run when the
-  // connection is processed by the service manager.
-  virtual mojom::ConnectResult GetResult() const = 0;
-
-  // Returns true if the connection has not yet been processed by the service
-  // manager.
-  virtual bool IsPending() const = 0;
-
-  // Register a closure to be run when the connection has been completed by the
-  // service manager 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;
-
-  // Returns an object encapsulating a remote InterfaceProvider.
-  virtual InterfaceProvider* GetRemoteInterfaces() = 0;
-
- protected:
-  virtual base::WeakPtr<Connection> GetWeakPtr() = 0;
-};
-
-}  // namespace service_manager
-
-#endif  // SERVICES_SERVICE_MANAGER_PUBLIC_CPP_CONNECTION_H_