Plumb NQP to context and to http_proxy_client_socket_pool

net/http/http_network_session.cc

Index: net/http/http_network_session.cc
diff --git a/net/http/http_network_session.cc b/net/http/http_network_session.cc
index ab10bcfbc374d0e9185c90ff94e368dcc732a48a..474c09835202286fb79cbd477f0e5c98f6c2e647 100644
--- a/net/http/http_network_session.cc
+++ b/net/http/http_network_session.cc
@@ -57,7 +57,8 @@ ClientSocketPoolManager* CreateSocketPoolManager(
       context.net_log,
       context.client_socket_factory ? context.client_socket_factory
                                     : ClientSocketFactory::GetDefaultFactory(),
-      context.socket_performance_watcher_factory, context.host_resolver,
+      context.socket_performance_watcher_factory,
+      context.network_quality_estimator, context.host_resolver,
       context.cert_verifier, context.channel_id_service,
       context.transport_security_state, context.cert_transparency_verifier,
       context.ct_policy_enforcer, ssl_session_cache_shard,
@@ -148,6 +149,7 @@ HttpNetworkSession::Context::Context()
       http_auth_handler_factory(nullptr),
       net_log(nullptr),
       socket_performance_watcher_factory(nullptr),
+      network_quality_estimator(nullptr),
       quic_clock(nullptr),
       quic_random(nullptr),
       quic_crypto_client_stream_factory(