Add an option to disable net::BidirectionalStreamQuicImpl

components/cronet/url_request_context_config.cc

Index: components/cronet/url_request_context_config.cc
diff --git a/components/cronet/url_request_context_config.cc b/components/cronet/url_request_context_config.cc
index 329d9a0ccefe7a3f8b4e83949e6ac1574fae019d..0684f4c7f3c8b4b86e6b56009652836f44bb4f4d 100644
--- a/components/cronet/url_request_context_config.cc
+++ b/components/cronet/url_request_context_config.cc
@@ -44,6 +44,9 @@ const char kQuicMigrateSessionsOnNetworkChange[] =
 const char kQuicPreferAes[] = "prefer_aes";
 const char kQuicUserAgentId[] = "user_agent_id";
 const char kQuicMigrateSessionsEarly[] = "migrate_sessions_early";
+// Disable QUIC when using net::BidirectionalStream.
+const char kDisableBidirectionalStreamQuicImpl[] =
+    "disable_bidirectional_stream_quic_impl";
 
 // AsyncDNS experiment dictionary name.
 const char kAsyncDnsFieldTrialName[] = "AsyncDNS";
@@ -168,6 +171,13 @@ void ParseAndSetExperimentalOptions(
       context_builder->set_quic_migrate_sessions_early(
           quic_migrate_sessions_early);
     }
+
+    bool disable_bidirectional_stream_quic_impl = false;
+    if (quic_args->GetBoolean(kDisableBidirectionalStreamQuicImpl,
+                              &disable_bidirectional_stream_quic_impl)) {
+      context_builder->set_disable_bidirectional_stream_quic_impl(
+          disable_bidirectional_stream_quic_impl);
+    }
   }
 
   const base::DictionaryValue* async_dns_args = nullptr;