Consider pending streams in ShouldKeepConnectionAlive. gfe-relnote: protected by disabled v99 flag. PiperOrigin-RevId: 276140643 Change-Id: Ie7d8c35ab325998ecbd1856927db665f611e051d

diff --git a/quic/core/http/quic_spdy_session.cc b/quic/core/http/quic_spdy_session.cc
index 1c8664f..6099f7d 100644
--- a/quic/core/http/quic_spdy_session.cc
+++ b/quic/core/http/quic_spdy_session.cc

@@ -639,7 +639,10 @@
 
 // True if there are open HTTP requests.
 bool QuicSpdySession::ShouldKeepConnectionAlive() const {
-  return GetNumActiveStreams() > 0;
+  if (!VersionUsesHttp3(transport_version())) {
+    DCHECK(pending_streams().empty());
+  }
+  return GetNumActiveStreams() + pending_streams().size() > 0;
 }
 
 bool QuicSpdySession::UsesPendingStreams() const {

diff --git a/quic/core/http/quic_spdy_session_test.cc b/quic/core/http/quic_spdy_session_test.cc
index d0a30f6..dadccf8 100644
--- a/quic/core/http/quic_spdy_session_test.cc
+++ b/quic/core/http/quic_spdy_session_test.cc

@@ -296,6 +296,7 @@
   }
 
   using QuicSession::closed_streams;
+  using QuicSession::ShouldKeepConnectionAlive;
   using QuicSession::zombie_streams;
   using QuicSpdySession::ProcessPendingStream;
   using QuicSpdySession::UsesPendingStreams;
@@ -1749,6 +1750,21 @@
   session_.OnStreamFrame(data1);
 }
 
+TEST_P(QuicSpdySessionTestClient, PendingStreamKeepsConnectionAlive) {
+  if (!VersionUsesHttp3(transport_version())) {
+    return;
+  }
+
+  QuicStreamId stream_id = QuicUtils::GetFirstUnidirectionalStreamId(
+      transport_version(), Perspective::IS_SERVER);
+
+  QuicStreamFrame frame(stream_id, false, 1, "test");
+  EXPECT_FALSE(session_.ShouldKeepConnectionAlive());
+  session_.OnStreamFrame(frame);
+  EXPECT_TRUE(QuicSessionPeer::GetPendingStream(&session_, stream_id));
+  EXPECT_TRUE(session_.ShouldKeepConnectionAlive());
+}
+
 TEST_P(QuicSpdySessionTestClient, AvailableStreamsClient) {
   ASSERT_TRUE(session_.GetOrCreateStream(
                   GetNthServerInitiatedBidirectionalId(2)) != nullptr);

diff --git a/quic/core/quic_session.h b/quic/core/quic_session.h
index 498fb57..d221fe6 100644
--- a/quic/core/quic_session.h
+++ b/quic/core/quic_session.h

@@ -538,6 +538,10 @@
   StreamMap& stream_map() { return stream_map_; }
   const StreamMap& stream_map() const { return stream_map_; }
 
+  const PendingStreamMap& pending_streams() const {
+    return pending_stream_map_;
+  }
+
   ClosedStreams* closed_streams() { return &closed_streams_; }
 
   const ZombieStreamMap& zombie_streams() const { return zombie_streams_; }