Add QUIC v40 which will be used to include changes:

net/quic/core/quic_version_manager_test.cc

 // Copyright (c) 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/core/quic_version_manager.h"
 
 #include "net/quic/core/quic_versions.h"
 #include "net/quic/platform/api/quic_flags.h"
 #include "net/quic/platform/api/quic_test.h"
 #include "net/quic/test_tools/quic_test_utils.h"
 
 namespace net {
 namespace test {
 namespace {
 
 class QuicVersionManagerTest : public QuicTest {};
 
 TEST_F(QuicVersionManagerTest, QuicVersionManager) {
+  SetQuicFlag(&FLAGS_quic_enable_version_40, false);
   FLAGS_quic_reloadable_flag_quic_enable_version_39 = false;
   FLAGS_quic_reloadable_flag_quic_enable_version_38 = false;
   QuicVersionManager manager(AllSupportedVersions());
   EXPECT_EQ(FilterSupportedVersions(AllSupportedVersions()),
             manager.GetSupportedVersions());
 
   FLAGS_quic_reloadable_flag_quic_enable_version_38 = true;
   EXPECT_EQ(FilterSupportedVersions(AllSupportedVersions()),
             manager.GetSupportedVersions());
   ASSERT_EQ(4u, manager.GetSupportedVersions().size());
   EXPECT_EQ(QUIC_VERSION_38, manager.GetSupportedVersions()[0]);
   EXPECT_EQ(QUIC_VERSION_37, manager.GetSupportedVersions()[1]);
   EXPECT_EQ(QUIC_VERSION_36, manager.GetSupportedVersions()[2]);
   EXPECT_EQ(QUIC_VERSION_35, manager.GetSupportedVersions()[3]);
 
   FLAGS_quic_reloadable_flag_quic_enable_version_39 = true;
   EXPECT_EQ(FilterSupportedVersions(AllSupportedVersions()),
             manager.GetSupportedVersions());
   ASSERT_EQ(5u, manager.GetSupportedVersions().size());
   EXPECT_EQ(QUIC_VERSION_39, manager.GetSupportedVersions()[0]);
   EXPECT_EQ(QUIC_VERSION_38, manager.GetSupportedVersions()[1]);
   EXPECT_EQ(QUIC_VERSION_37, manager.GetSupportedVersions()[2]);
   EXPECT_EQ(QUIC_VERSION_36, manager.GetSupportedVersions()[3]);
   EXPECT_EQ(QUIC_VERSION_35, manager.GetSupportedVersions()[4]);
 
+  SetQuicFlag(&FLAGS_quic_enable_version_40, true);
+  ASSERT_EQ(6u, manager.GetSupportedVersions().size());
+  EXPECT_EQ(QUIC_VERSION_40, manager.GetSupportedVersions()[0]);
+  EXPECT_EQ(QUIC_VERSION_39, manager.GetSupportedVersions()[1]);
+  EXPECT_EQ(QUIC_VERSION_38, manager.GetSupportedVersions()[2]);
+  EXPECT_EQ(QUIC_VERSION_37, manager.GetSupportedVersions()[3]);
+  EXPECT_EQ(QUIC_VERSION_36, manager.GetSupportedVersions()[4]);
+  EXPECT_EQ(QUIC_VERSION_35, manager.GetSupportedVersions()[5]);
+
   EXPECT_EQ(FilterSupportedVersions(AllSupportedVersions()),
             manager.GetSupportedVersions());
-  ASSERT_EQ(5u, manager.GetSupportedVersions().size());
-  EXPECT_EQ(QUIC_VERSION_39, manager.GetSupportedVersions()[0]);
-  EXPECT_EQ(QUIC_VERSION_38, manager.GetSupportedVersions()[1]);
-  EXPECT_EQ(QUIC_VERSION_37, manager.GetSupportedVersions()[2]);
-  EXPECT_EQ(QUIC_VERSION_36, manager.GetSupportedVersions()[3]);
-  EXPECT_EQ(QUIC_VERSION_35, manager.GetSupportedVersions()[4]);
+  ASSERT_EQ(6u, manager.GetSupportedVersions().size());
+  EXPECT_EQ(QUIC_VERSION_40, manager.GetSupportedVersions()[0]);
+  EXPECT_EQ(QUIC_VERSION_39, manager.GetSupportedVersions()[1]);
+  EXPECT_EQ(QUIC_VERSION_38, manager.GetSupportedVersions()[2]);
+  EXPECT_EQ(QUIC_VERSION_37, manager.GetSupportedVersions()[3]);
+  EXPECT_EQ(QUIC_VERSION_36, manager.GetSupportedVersions()[4]);
+  EXPECT_EQ(QUIC_VERSION_35, manager.GetSupportedVersions()[5]);
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net