[Cronet] Add QUIC experimental params
This CL plumbs four QUIC experimental params (
quic_store_server_configs_in_properties,
quic_delay_tcp_race,
quic_max_number_of_lossy_connections,
quic_packet_loss_threshold) from Cronet's
setExperimentalOptions API to net::HttpNetworkSession.
This CL also adds a unittests target to run the unittests.
A followup CL will enable the unittests on the cronet bots.
BUG=545118
Committed: https://crrev.com/fde0b72c603cd111c36ca4cc416d82a7395bcf6c
Cr-Commit-Position: refs/heads/master@{#360454}
Review URL: https://codereview.chromium.org/1448583003
Cr-Commit-Position: refs/heads/master@{#360875}
8 files changed