Move a subset of chrome/browser/chromeos/drive into components/drive

chrome/browser/chromeos/drive/file_change.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_DRIVE_FILE_CHANGE_H_
-#define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_CHANGE_H_
-
-#include <deque>
-#include <map>
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/files/file_path.h"
-#include "storage/browser/fileapi/file_system_url.h"
-
-namespace drive {
-class ResourceEntry;
-
-class FileChange {
- public:
-  enum FileType {
-    FILE_TYPE_NO_INFO,
-    FILE_TYPE_FILE,
-    FILE_TYPE_DIRECTORY,
-  };
-
-  enum ChangeType {
-    CHANGE_TYPE_ADD_OR_UPDATE,
-    CHANGE_TYPE_DELETE,
-  };
-
-  class Change {
-   public:
-    Change(ChangeType change, FileType file_type);
-
-    bool IsAddOrUpdate() const { return change_ == CHANGE_TYPE_ADD_OR_UPDATE; }
-    bool IsDelete() const { return change_ == CHANGE_TYPE_DELETE; }
-
-    bool IsFile() const { return file_type_ == FILE_TYPE_FILE; }
-    bool IsDirectory() const { return file_type_ == FILE_TYPE_DIRECTORY; }
-    bool IsTypeUnknown() const { return !IsFile() && !IsDirectory(); }
-
-    ChangeType change() const { return change_; }
-    FileType file_type() const { return file_type_; }
-
-    std::string DebugString() const;
-
-    bool operator==(const Change& that) const {
-      return change() == that.change() && file_type() == that.file_type();
-    }
-
-   private:
-    ChangeType change_;
-    FileType file_type_;
-  };
-
-  class ChangeList {
-   public:
-    typedef std::deque<Change> List;
-
-    ChangeList();
-    ~ChangeList();
-
-    // Updates the list with the |new_change|.
-    void Update(const Change& new_change);
-
-    size_t size() const { return list_.size(); }
-    bool empty() const { return list_.empty(); }
-    void clear() { list_.clear(); }
-    const List& list() const { return list_; }
-    const Change& front() const { return list_.front(); }
-    const Change& back() const { return list_.back(); }
-
-    ChangeList PopAndGetNewList() const;
-
-    std::string DebugString() const;
-
-   private:
-    List list_;
-  };
-
- public:
-  typedef std::map<base::FilePath, FileChange::ChangeList> Map;
-
-  FileChange();
-  ~FileChange();
-
-  void Update(const base::FilePath file_path,
-              const FileChange::Change& new_change);
-  void Update(const base::FilePath file_path,
-              const FileChange::ChangeList& list);
-  void Update(const base::FilePath file_path,
-              FileType type,
-              FileChange::ChangeType change);
-  void Update(const base::FilePath file_path,
-              const ResourceEntry& entry,
-              FileChange::ChangeType change);
-  void Apply(const FileChange& new_changed_files);
-
-  const Map& map() const { return map_; }
-
-  size_t size() const { return map_.size(); }
-  bool empty() const { return map_.empty(); }
-  void ClearForTest() { map_.clear(); }
-  size_t CountDirectory(const base::FilePath& directory_path) const;
-  size_t count(const base::FilePath& file_path) const {
-    return map_.count(file_path);
-  }
-
-  std::string DebugString() const;
-
- private:
-  Map map_;
-};
-
-}  // namespace drive
-
-#endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_CHANGE_H_