Delete Privet filesystem code

chrome/browser/local_discovery/storage/privet_filesystem_attribute_cache.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 CHROME_BROWSER_LOCAL_DISCOVERY_STORAGE_PRIVET_FILESYSTEM_ATTRIBUTE_CACHE_H_
-#define CHROME_BROWSER_LOCAL_DISCOVERY_STORAGE_PRIVET_FILESYSTEM_ATTRIBUTE_CACHE_H_
-
-#include <map>
-
-#include "base/files/file.h"
-#include "base/values.h"
-
-namespace local_discovery {
-
-class PrivetFileSystemAttributeCache {
- public:
-  PrivetFileSystemAttributeCache();
-  ~PrivetFileSystemAttributeCache();
-
-  // Get File info for a path in the filesystem. Returns NULL if not found.
-  const base::File::Info* GetFileInfo(const base::FilePath& full_path);
-
-  // Add file info from the result of a /privet/storage/list request.
-  void AddFileInfoFromJSON(const base::FilePath& full_path,
-                           const base::DictionaryValue* json);
-
- private:
-  typedef std::map<base::FilePath, base::File::Info> FileInfoMap;
-
-  void AddEntryInfoFromJSON(const base::FilePath& full_path,
-                            const base::DictionaryValue* json);
-
-  FileInfoMap file_info_map_;
-};
-
-}  // namespace local_discovery
-
-#endif  // CHROME_BROWSER_LOCAL_DISCOVERY_STORAGE_PRIVET_FILESYSTEM_ATTRIBUTE_CACHE_H_