115 struct FileMetricsProvider::SourceInfo {  struct in metrics::FileMetricsProvider
116   SourceInfo(const Params& params)  in SourceInfo()  argument
140   ~SourceInfo() {}  in ~SourceInfo()
142   struct FoundFile {
146   using FoundFiles = base::flat_map<base::Time, FoundFile>;
149   const SourceType type;
152   const SourceAssociation association;
156   base::FilePath directory;
159   std::unique_ptr<FoundFiles> found_files;
163   base::FilePath path;
166   std::string prefs_key;
169   FilterCallback filter;
172   base::TimeDelta max_age;
175   size_t max_dir_kib;
178   size_t max_dir_files;
181   base::Time last_seen;
184   bool read_complete = false;
188   std::unique_ptr<base::PersistentHistogramAllocator> allocator;