100644 blob 92d1b97d6900c12cadbd06c8dbe6fd2cb73138af	histogram_manager.cc
100644 blob 45067a0119e95c5a61c61df0c5fa2dd7a0e99d8a	histogram_manager.h
100644 blob 0900f8072e9b78923a9a45453464e80e64d6e92a	histogram_manager_unittest.cc