tree 5cc35ea4c7d91f8b5a2be2ab52f15437d3671a20
parent 4a6b90530a50d27f625c171d7d128c44227da30e
author bnc <bnc@google.com> 1563836354 -0700
committer Copybara-Service <copybara-worker@google.com> 1563894860 -0700

Call MarkConsumed() only once in QuicSpdyStreamBodyBuffer::MarkBodyConsumed() with a combined byte count.

This is a small behavioral change in preparation for a future CL which will make
MarkBodyConsumed() and also ReadBody() return the number of bytes to be consumed
by the caller.  Splitting out this change allows that future CL to be a pure API
change.  The ultimate motivation is much cleaner tests for
QuicSpdyStreamBodyBuffer.

gfe-relnote: n/a, change in QUIC v99-only code.
PiperOrigin-RevId: 259424818
Change-Id: I1a96285ac7fcdfc9eae2768c9f2b64b82a323929