GetDirName        831 third_party/leveldatabase/env_chromium.cc   needs_sync_map_[GetDirName(filename)] = true;
GetDirName        836 third_party/leveldatabase/env_chromium.cc   return needs_sync_map_.find(GetDirName(filename)) != needs_sync_map_.end();
GetDirName        841 third_party/leveldatabase/env_chromium.cc   needs_sync_map_.erase(GetDirName(filename));