Chrome requires the :version: header in SPDY_SESSION_PUSHED_SYN_STREAM frames otherwise it issues a HTTP_TRANSACTION_SPDY_SEND_REQUEST_HEADERS and a SPDY_STREAM_ERROR saying "HEADERS incomplete headers, but pending data frames."
SPDY: allow empty header values in SPDY/3
SPDY: fix regression in SpdyFrameDecoder.decodeHeaderBlock()
Merge pull request #933 from jpinner/fix_spdy_regression

SPDY: fix regression in SpdyFrameDecoder.decodeHeaderBlock()