Update from https://crrev.com/311145

net/quic/quic_stream_factory.cc

Index: net/quic/quic_stream_factory.cc
diff --git a/net/quic/quic_stream_factory.cc b/net/quic/quic_stream_factory.cc
index 5c0d2f9f741b2c6f7b2778f93977215e2ade09b9..ec3eecd9709c7d94c635e7b3d44f5119ad14f450 100644
--- a/net/quic/quic_stream_factory.cc
+++ b/net/quic/quic_stream_factory.cc
@@ -1130,6 +1130,11 @@ int64 QuicStreamFactory::GetServerNetworkStatsSmoothedRttInMicroseconds(
 void QuicStreamFactory::InitializeCachedStateInCryptoConfig(
     const QuicServerId& server_id,
     const scoped_ptr<QuicServerInfo>& server_info) {
+  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed.
+  tracked_objects::ScopedTracker tracking_profile1(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "422516 QuicStreamFactory::InitializeCachedStateInCryptoConfig1"));
+
   // |server_info| will be NULL, if a non-empty server config already exists in
   // the memory cache. This is a minor optimization to avoid LookupOrCreate.
   if (!server_info)
@@ -1161,6 +1166,11 @@ void QuicStreamFactory::InitializeCachedStateInCryptoConfig(
     }
   }
 
+  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed.
+  tracked_objects::ScopedTracker tracking_profile2(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "422516 QuicStreamFactory::InitializeCachedStateInCryptoConfig2"));
+
   if (!cached->Initialize(server_info->state().server_config,
                           server_info->state().source_address_token,
                           server_info->state().certs,