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// 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 CHROME_BROWSER_SYNC_SYNC_ERROR_CONTROLLER_H_
#define CHROME_BROWSER_SYNC_SYNC_ERROR_CONTROLLER_H_
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/observer_list.h"
#include "chrome/browser/sync/profile_sync_service_observer.h"
class Profile;
class ProfileSyncService;
// Keep track of sync errors and expose them to observers in the UI.
class SyncErrorController : public ProfileSyncServiceObserver {
public:
// The observer class for SyncErrorController lets the controller notify
// observers when an error arises or changes.
class Observer {
public:
virtual ~Observer() {}
virtual void OnErrorChanged() = 0;
};
explicit SyncErrorController(ProfileSyncService* service);
virtual ~SyncErrorController();
// True if there exists an error worth elevating to the user.
bool HasError();
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
// ProfileSyncServiceObserver:
virtual void OnStateChanged() OVERRIDE;
private:
ProfileSyncService* service_;
ObserverList<Observer, true> observer_list_;
DISALLOW_COPY_AND_ASSIGN(SyncErrorController);
};
#endif // CHROME_BROWSER_SYNC_SYNC_ERROR_CONTROLLER_H_
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