100644 blob f6f3c0b1d998e743769e645c55ccfd52d999570a	external_protocol_handler.cc
100644 blob 934ce31313337a015b6455beaf869dedfbe284b6	external_protocol_handler.h
100644 blob cce6ba2dacac4b7d415112bb50a4669159aef7c7	external_protocol_handler_unittest.cc
100644 blob 2d3f10d2836a2bd68f281110b34b7b8e635af041	external_protocol_observer.cc
100644 blob c4b7b26d231dbd936a5a9605ac546f0dadf1e3b6	external_protocol_observer.h