100644 blob ac4f5f57cd334e4ebd810df6bba8c3a50b171639	external_protocol_handler.cc
100644 blob 7b5fa3fb9409b6191053af2717f1f4cdc9203f7a	external_protocol_handler.h
100644 blob 57a6db6049b1628d2d58e6f639d12d5837c4ad58	external_protocol_handler_unittest.cc
100644 blob 2d3f10d2836a2bd68f281110b34b7b8e635af041	external_protocol_observer.cc
100644 blob c4b7b26d231dbd936a5a9605ac546f0dadf1e3b6	external_protocol_observer.h