deprecate -FLAGS_quic_reloadable_flag_quic_disable_version_34 and remove support for QUIC v34.

net/tools/quic/quic_dispatcher_test.cc

Index: net/tools/quic/quic_dispatcher_test.cc
diff --git a/net/tools/quic/quic_dispatcher_test.cc b/net/tools/quic/quic_dispatcher_test.cc
index 3c78e671f7a43630a134112aa6e4ceb27b8dfca7..8fc56573620088aef8873b387c2719a2224285e4 100644
--- a/net/tools/quic/quic_dispatcher_test.cc
+++ b/net/tools/quic/quic_dispatcher_test.cc
@@ -528,9 +528,8 @@ TEST_F(QuicDispatcherTest, TooBigSeqNoPacketToTimeWaitListManager) {
 }
 
 TEST_F(QuicDispatcherTest, SupportedVersionsChangeInFlight) {
-  static_assert(arraysize(kSupportedQuicVersions) == 6u,
+  static_assert(arraysize(kSupportedQuicVersions) == 5u,
                 "Supported versions out of sync");
-  FLAGS_quic_reloadable_flag_quic_disable_version_34 = false;
   FLAGS_quic_reloadable_flag_quic_enable_version_36_v3 = true;
   FLAGS_quic_reloadable_flag_quic_enable_version_37 = true;
   FLAGS_quic_reloadable_flag_quic_enable_version_38 = true;
@@ -624,32 +623,6 @@ TEST_F(QuicDispatcherTest, SupportedVersionsChangeInFlight) {
   ProcessPacket(client_address, connection_id, true, QUIC_VERSION_35,
                 SerializeCHLO(), PACKET_8BYTE_CONNECTION_ID,
                 PACKET_6BYTE_PACKET_NUMBER, 1);
-
-  // Turn off version 34.
-  FLAGS_quic_reloadable_flag_quic_disable_version_34 = true;
-  ++connection_id;
-  EXPECT_CALL(*dispatcher_, CreateQuicSession(connection_id, client_address))
-      .Times(0);
-  ProcessPacket(client_address, connection_id, true, QUIC_VERSION_34,
-                SerializeCHLO(), PACKET_8BYTE_CONNECTION_ID,
-                PACKET_6BYTE_PACKET_NUMBER, 1);
-
-  // Turn on version 34.
-  FLAGS_quic_reloadable_flag_quic_disable_version_34 = false;
-  ++connection_id;
-  EXPECT_CALL(*dispatcher_, CreateQuicSession(connection_id, client_address))
-      .WillOnce(testing::Return(CreateSession(
-          dispatcher_.get(), config_, connection_id, client_address,
-          &mock_helper_, &mock_alarm_factory_, &crypto_config_,
-          QuicDispatcherPeer::GetCache(dispatcher_.get()), &session1_)));
-  EXPECT_CALL(*reinterpret_cast<MockQuicConnection*>(session1_->connection()),
-              ProcessUdpPacket(_, _, _))
-      .WillOnce(testing::WithArgs<2>(
-          Invoke(CreateFunctor(&QuicDispatcherTest::ValidatePacket,
-                               base::Unretained(this), connection_id))));
-  ProcessPacket(client_address, connection_id, true, QUIC_VERSION_34,
-                SerializeCHLO(), PACKET_8BYTE_CONNECTION_ID,
-                PACKET_6BYTE_PACKET_NUMBER, 1);
 }
 
 // Enables mocking of the handshake-confirmation for stateless rejects.