fix static route default chunk size
fix static route default chunk size

KeepSafe/aiohttp,mind1master/aiohttp,rutsky/aiohttp,pfreixes/aiohttp,AraHaanOrg/aiohttp,decentfox/aiohttp,hellysmile/aiohttp,esaezgil/aiohttp,decentfox/aiohttp,playpauseandstop/aiohttp,panda73111/aiohttp,z2v/aiohttp,moden-py/aiohttp,moden-py/aiohttp,arthurdarcet/aiohttp,mind1master/aiohttp,esaezgil/aiohttp,jashandeep-sohi/aiohttp,jettify/aiohttp,KeepSafe/aiohttp,jettify/aiohttp,arthurdarcet/aiohttp,juliatem/aiohttp,Eyepea/aiohttp,elastic-coders/aiohttp,vaskalas/aiohttp,panda73111/aiohttp,Insoleet/aiohttp,z2v/aiohttp,mind1master/aiohttp,rutsky/aiohttp,singulared/aiohttp,singulared/aiohttp,moden-py/aiohttp,juliatem/aiohttp,z2v/aiohttp,AraHaanOrg/aiohttp,arthurdarcet/aiohttp,alex-eri/aiohttp-1,jashandeep-sohi/aiohttp,hellysmile/aiohttp,KeepSafe/aiohttp,rutsky/aiohttp,jashandeep-sohi/aiohttp,jettify/aiohttp,alex-eri/aiohttp-1,decentfox/aiohttp,alex-eri/aiohttp-1,elastic-coders/aiohttp,panda73111/aiohttp,esaezgil/aiohttp,vaskalas/aiohttp,elastic-coders/aiohttp,vaskalas/aiohttp,pfreixes/aiohttp,singulared/aiohttp