adaptation → http Relation

File in squid/src/adaptation	Includes file in squid/src/http
Answer.cc	Message.h
Answer.h	forward.h
Initiate.cc	Message.h
Iterator.h	forward.h
Message.cc	Message.h
Message.h	forward.h
Service.h	forward.h
ecap / MessageRep.h	forward.h
icap / ModXact.cc	ContentLengthInterpreter.h
icap / ModXact.h	one / forward.h
icap / ModXact.h	one / TeChunkedParser.h