LookupHandler     120 chrome/browser/custom_handlers/protocol_handler_registry.cc   return enabled_ && !LookupHandler(default_handlers_, scheme).IsEmpty();
LookupHandler     143 chrome/browser/custom_handlers/protocol_handler_registry.cc   ProtocolHandler handler = LookupHandler(default_handlers_,
LookupHandler     656 chrome/browser/custom_handlers/protocol_handler_registry.cc   return LookupHandler(default_handlers_, scheme);