Cap the delay time for the main job when racing with QUIC for delayed

net/http/http_stream_factory_impl_job_controller.cc

Index: net/http/http_stream_factory_impl_job_controller.cc
diff --git a/net/http/http_stream_factory_impl_job_controller.cc b/net/http/http_stream_factory_impl_job_controller.cc
index 0bb08374dc8e90f0946600b1767183bc6d0f53c6..726691282f152dcbc0ab6a3fba1bff7aebc7ca5c 100644
--- a/net/http/http_stream_factory_impl_job_controller.cc
+++ b/net/http/http_stream_factory_impl_job_controller.cc
@@ -28,6 +28,10 @@
 
 namespace net {
 
+// The maximum time to wait for the alternate job to complete before resuming
+// the main job.
+const int kMaxDelayTimeForMainJobSecs = 3;
+
 std::unique_ptr<base::Value> NetLogJobControllerCallback(
     const GURL* url,
     bool is_preconnect,
@@ -659,8 +663,10 @@ const NetLogWithSource* HttpStreamFactoryImpl::JobController::GetNetLog(
 
 void HttpStreamFactoryImpl::JobController::MaybeSetWaitTimeForMainJob(
     const base::TimeDelta& delay) {
-  if (main_job_is_blocked_)
-    main_job_wait_time_ = delay;
+  if (main_job_is_blocked_) {
+    main_job_wait_time_ = std::min(
+        delay, base::TimeDelta::FromSeconds(kMaxDelayTimeForMainJobSecs));
+  }
 }
 
 bool HttpStreamFactoryImpl::JobController::HasPendingMainJob() const {