[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
NOTRY=true
NOPRESUBMIT=true
Committed: https://crrev.com/fde0b72c603cd111c36ca4cc416d82a7395bcf6c
Cr-Commit-Position: refs/heads/master@{#360454}
Committed: https://crrev.com/8ece3aa6845350c1971a3e824bf148f3e8de3253
Cr-Commit-Position: refs/heads/master@{#360875}
Review URL: https://codereview.chromium.org/1448583003
Cr-Commit-Position: refs/heads/master@{#361138}
(cherry picked from commit f24ee5f5afeb59d2a9134a7b986efb6483629fe5)
Review URL: https://codereview.chromium.org/1483103002
Cr-Commit-Position: refs/branch-heads/2564@{#161}
Cr-Branched-From: 1283eca15bd9f772387f75241576cde7bdec7f54-refs/heads/master@{#359700}
8 files changed
