Avoid chunk header parsing overflow.
Avoid chunk header parsing overflow.

Recharacterize the chunk header states such that they are bound by the check
for HTTP_MAX_HEADER_SIZE.

ignacio/http-parser,OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad,apaprocki/http-parser,OpenMusicKontrollers/chimaerad