tree 25ffbe639307c60b46339563499aa81e7231d3e4
parent 9301d3c2b543b552ea79b688793bdbe1421c4070
author bnc <bnc@google.com> 1569026833 -0700
committer Copybara-Service <copybara-worker@google.com> 1569339111 -0700

When QPACK encoding, allow blocking references on a stream that is already blocked.

After this change, blocked_stream_count() would only be used in tests.  This CL
also takes the opportunity to replace it with a more expressive
stream_is_blocked() method.

gfe-relnote: n/a, change to QUIC v99-only code.  Protected by existing disabled gfe2_reloadable_flag_quic_enable_version_99.
PiperOrigin-RevId: 270385673
Change-Id: I2b68be71f2db19e2acbc830b3a4579436fe4fa39