tree ac909b8d6921dfd67ca2d84f8fc475776f5d8216
parent 8eea919c65ddc3bf929e4e82ec0b049999ed9101
author fayang <fayang@google.com> 1597345795 -0700
committer Copybara-Service <copybara-worker@google.com> 1597345835 -0700

Add has_ack to QuicTransmissionInfo. Currently, only used for logging purpose, not protected.

Add GetLastPacketContent to return a bitfield indicating the retransmittable frames in the last packet.

PiperOrigin-RevId: 326496264
Change-Id: I181c101907a85b1070c42fae32a61e3034e111d5