Bug 558623 - Split out HTTP LOG macro definition from nsHttp.h r=jdm

--HG--
rename : netwerk/protocol/http/nsHttp.h => netwerk/protocol/http/HttpLog.h
extra : rebase_source : 3295c6472c846b24d3012343cf06798abf8774f9
Bug 558623 - e10s HTTP: combine PHttpChannel constructor with SendAsyncOpen/SendRedirect1Begin r=jdm

--HG--
rename : netwerk/protocol/http/nsHttp.h => netwerk/protocol/http/HttpLog.h
extra : rebase_source : 80cac843f38f2237c9fd932c428e1c1fda781b50