Move files inside chrome/browser/chromeos/dbus to chromeos/dbus

chrome/browser/chromeos/dbus/update_engine_client.h

-// Copyright (c) 2012 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 CHROME_BROWSER_CHROMEOS_DBUS_UPDATE_ENGINE_CLIENT_H_
-#define CHROME_BROWSER_CHROMEOS_DBUS_UPDATE_ENGINE_CLIENT_H_
-
-#include "base/callback.h"
-#include "base/observer_list.h"
-#include "chrome/browser/chromeos/dbus/dbus_client_implementation_type.h"
-
-#include <string>
-
-namespace dbus {
-class Bus;
-}  // namespace
-
-namespace chromeos {
-
-// UpdateEngineClient is used to communicate with the update engine.
-class UpdateEngineClient {
- public:
-  // Edges for state machine
-  //    IDLE->CHECKING_FOR_UPDATE
-  //    CHECKING_FOR_UPDATE->IDLE
-  //    CHECKING_FOR_UPDATE->UPDATE_AVAILABLE
-  //    ...
-  //    FINALIZING->UPDATE_NEED_REBOOT
-  // Any state can transition to REPORTING_ERROR_EVENT and then on to IDLE.
-  enum UpdateStatusOperation {
-    UPDATE_STATUS_ERROR = -1,
-    UPDATE_STATUS_IDLE = 0,
-    UPDATE_STATUS_CHECKING_FOR_UPDATE,
-    UPDATE_STATUS_UPDATE_AVAILABLE,
-    UPDATE_STATUS_DOWNLOADING,
-    UPDATE_STATUS_VERIFYING,
-    UPDATE_STATUS_FINALIZING,
-    UPDATE_STATUS_UPDATED_NEED_REBOOT,
-    UPDATE_STATUS_REPORTING_ERROR_EVENT
-  };
-
-  // The status of the ongoing update attempt.
-  struct Status {
-    Status() : status(UPDATE_STATUS_IDLE),
-               download_progress(0.0),
-               last_checked_time(0),
-               new_size(0) {
-    }
-
-    UpdateStatusOperation status;
-    double download_progress;   // 0.0 - 1.0
-    int64_t last_checked_time;  // As reported by std::time().
-    std::string new_version;
-    int64_t new_size;           // Valid during DOWNLOADING, in bytes.
-  };
-
-  // The result code used for RequestUpdateCheck().
-  enum UpdateCheckResult {
-    UPDATE_RESULT_SUCCESS,
-    UPDATE_RESULT_FAILED,
-    UPDATE_RESULT_NOTIMPLEMENTED,
-  };
-
-  // Interface for observing changes from the update engine.
-  class Observer {
-   public:
-    // Called when the status is updated.
-    virtual void UpdateStatusChanged(const Status& status) {}
-  };
-
-  virtual ~UpdateEngineClient();
-
-  // Adds and removes the observer.
-  virtual void AddObserver(Observer* observer) = 0;
-  virtual void RemoveObserver(Observer* observer) = 0;
-  // Returns true if this object has the given observer.
-  virtual bool HasObserver(Observer* observer) = 0;
-
-  // Called once RequestUpdateCheck() is complete. Takes one parameter:
-  // - UpdateCheckResult: the result of the update check.
-  typedef base::Callback<void(UpdateCheckResult)> UpdateCheckCallback;
-
-  // Requests an update check and calls |callback| when completed.
-  virtual void RequestUpdateCheck(UpdateCheckCallback callback) = 0;
-
-  // Reboots if update has been performed.
-  virtual void RebootAfterUpdate() = 0;
-
-  // Requests to set the release track (channel). |track| should look like
-  // "beta-channel" or "dev-channel".
-  virtual void SetReleaseTrack(const std::string& track) = 0;
-
-  // Called once GetReleaseTrack() is complete. Takes one parameter;
-  // - string: the release track name like "beta-channel".
-  typedef base::Callback<void(const std::string&)> GetReleaseTrackCallback;
-
-  // Requests to get the release track and calls |callback| with the
-  // release track (channel). On error, calls |callback| with an empty
-  // string.
-  virtual void GetReleaseTrack(GetReleaseTrackCallback callback) = 0;
-
-  // Returns the last status the object received from the update engine.
-  //
-  // Ideally, the D-Bus client should be state-less, but there are clients
-  // that need this information.
-  virtual Status GetLastStatus() = 0;
-
-  // Returns an empty UpdateCheckCallback that does nothing.
-  static UpdateCheckCallback EmptyUpdateCheckCallback();
-
-  // Creates the instance.
-  static UpdateEngineClient* Create(DBusClientImplementationType type,
-                                    dbus::Bus* bus);
-
- protected:
-  // Create() should be used instead.
-  UpdateEngineClient();
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(UpdateEngineClient);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_DBUS_UPDATE_ENGINE_CLIENT_H_