[SyncFS] Improve debug logs of MetadataDatabaseIndex

chrome/browser/sync_file_system/drive_backend/metadata_database_index.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_SYNC_FILE_SYSTEM_DRIVE_BACKEND_METADATA_DATABASE_INDEX_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_METADATA_DATABASE_INDEX_H_
 
 #include "base/containers/hash_tables.h"
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "chrome/browser/sync_file_system/drive_backend/metadata_database.h"
@@ skipping 74 matching lines @@
 
   // Returns an app-root tracker identified by |app_id|.  Returns 0 if not
   // found.
   int64 GetAppRootTracker(const std::string& app_id) const;
 
   // Returns a set of FileTracker that have |parent_tracker_id| and |title|.
   TrackerIDSet GetFileTrackerIDsByParentAndTitle(
       int64 parent_tracker_id,
       const std::string& title) const;
 
+  std::vector<int64> GetFileTrackerIDsByParent(int64 parent_tracker_id) const;
+
   // Returns the |file_id| of a file that has multiple trackers.
   std::string PickMultiTrackerFileID() const;
 
   // Returns a pair of |parent_tracker_id| and |title| that has multiple file
   // at the path.
   ParentIDAndTitle PickMultiBackingFilePath() const;
 
   // Returns a FileTracker whose |dirty| is set and which isn't demoted.
   // Returns 0 if not found.
   int64 PickDirtyTracker() const;
 
   // Demotes a dirty tracker.
   void DemoteDirtyTracker(int64 tracker_id);
 
+  bool HasDemotedDirtyTracker() const;
+
   // Promotes all demoted dirty trackers to normal dirty trackers.
   void PromoteDemotedDirtyTrackers();
 
+  std::vector<std::string> GetRegisteredAppIDs() const;
+
  private:
   typedef base::ScopedPtrHashMap<std::string, FileMetadata> MetadataByID;
   typedef base::ScopedPtrHashMap<int64, FileTracker> TrackerByID;
   typedef base::hash_map<std::string, TrackerIDSet> TrackerIDsByFileID;
   typedef base::hash_map<std::string, TrackerIDSet> TrackerIDsByTitle;
   typedef std::map<int64, TrackerIDsByTitle> TrackerIDsByParentAndTitle;
   typedef base::hash_map<std::string, int64> TrackerIDByAppID;
   typedef base::hash_set<std::string> FileIDSet;
   typedef base::hash_set<ParentIDAndTitle> PathSet;
   typedef std::set<int64> DirtyTrackers;
@@ skipping 38 matching lines @@
   DirtyTrackers dirty_trackers_;
   DirtyTrackers demoted_dirty_trackers_;
 
   DISALLOW_COPY_AND_ASSIGN(MetadataDatabaseIndex);
 };
 
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_METADATA_DATABASE_INDEX_H_