Add a platform implementation of QuicTest and QuicTestWithParam

net/quic/platform/impl/quic_test_impl.h

+// Copyright (c) 2017 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.
+
+#ifndef NET_QUIC_PLATFORM_IMPL_QUIC_TEST_IMPL_H_
+#define NET_QUIC_PLATFORM_IMPL_QUIC_TEST_IMPL_H_
+
+#include "testing/gmock/include/gmock/gmock.h"  // IWYU pragma: export
+#include "testing/gtest/include/gtest/gtest.h"  // IWYU pragma: export
+
+// When constructed, checks that all QUIC flags have their correct default
+// values and when destructed, restores those values.
+class QuicFlagSaver {
+ public:
+  QuicFlagSaver();
+  ~QuicFlagSaver();
+};
+
+class QuicTestImpl : public ::testing::Test {
+ private:
+  QuicFlagSaver flags_;  // Save/restore all QUIC flag values.
+};
+
+template <class T>
+class QuicTestWithParamImpl : public ::testing::TestWithParam<T> {
+ private:
+  QuicFlagSaver flags_;  // Save/restore all QUIC flag values.
+};
+
+#endif  // NET_QUIC_PLATFORM_IMPL_QUIC_TEST_IMPL_H_