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// 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_SYNC_GLUE_SYNCED_DEVICE_TRACKER_H_
#define CHROME_BROWSER_SYNC_GLUE_SYNCED_DEVICE_TRACKER_H_
#include <string>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/sync/glue/change_processor.h"
namespace syncer {
struct UserShare;
}
namespace browser_sync {
class DeviceInfo;
class SyncedDeviceTracker : public ChangeProcessor {
public:
SyncedDeviceTracker(syncer::UserShare* user_share,
const std::string& cache_guid);
virtual ~SyncedDeviceTracker();
// ChangeProcessor methods
virtual void StartImpl(Profile* profile) OVERRIDE;
virtual void ApplyChangesFromSyncModel(
const syncer::BaseTransaction* trans,
int64 model_version,
const syncer::ImmutableChangeRecordList& changes) OVERRIDE;
virtual void CommitChangesFromSyncModel() OVERRIDE;
// Methods for accessing and updating the device_info list.
// These are virtual for testing.
virtual scoped_ptr<DeviceInfo> ReadLocalDeviceInfo(
const syncer::BaseTransaction &trans) const;
virtual scoped_ptr<DeviceInfo> ReadLocalDeviceInfo() const;
virtual void InitLocalDeviceInfo(const base::Closure& callback);
private:
friend class SyncedDeviceTrackerTest;
void InitLocalDeviceInfoContinuation(const base::Closure& callback,
const DeviceInfo& local_info);
// Helper to write specifics into our node. Also useful for testing.
void WriteLocalDeviceInfo(const DeviceInfo& info);
base::WeakPtrFactory<SyncedDeviceTracker> weak_factory_;
syncer::UserShare* user_share_;
const std::string cache_guid_;
const std::string local_device_info_tag_;
DISALLOW_COPY_AND_ASSIGN(SyncedDeviceTracker);
};
} // namespace browser_sync
#endif // CHROME_BROWSER_SYNC_GLUE_SYNCED_DEVICE_TRACKER_H_
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