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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_CHROMEOS_DRIVE_DRIVE_CACHE_OBSERVER_H_
#define CHROME_BROWSER_CHROMEOS_DRIVE_DRIVE_CACHE_OBSERVER_H_
#include <string>
namespace drive {
// Interface for classes that need to observe events from DriveCache.
// All events are notified on UI thread.
class DriveCacheObserver {
public:
// Triggered when a file has been pinned successfully.
virtual void OnCachePinned(const std::string& resource_id,
const std::string& md5) {}
// Triggered when a file has been unpinned successfully.
virtual void OnCacheUnpinned(const std::string& resource_id,
const std::string& md5) {}
// Triggered when a dirty file has been committed (saved) successfully.
virtual void OnCacheCommitted(const std::string& resource_id) {}
protected:
virtual ~DriveCacheObserver() {}
};
} // namespace drive
#endif // CHROME_BROWSER_CHROMEOS_DRIVE_DRIVE_CACHE_OBSERVER_H_
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