Project import generated by Copybara.
PiperOrigin-RevId: 237361882
Change-Id: I109a68f44db867b20f8c6a7732b0ce657133e52a
diff --git a/quic/core/frames/quic_inlined_frame.h b/quic/core/frames/quic_inlined_frame.h
new file mode 100644
index 0000000..08c4869
--- /dev/null
+++ b/quic/core/frames/quic_inlined_frame.h
@@ -0,0 +1,30 @@
+// Copyright (c) 2018 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 QUICHE_QUIC_CORE_FRAMES_QUIC_INLINED_FRAME_H_
+#define QUICHE_QUIC_CORE_FRAMES_QUIC_INLINED_FRAME_H_
+
+#include "net/third_party/quiche/src/quic/core/quic_types.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
+
+namespace quic {
+
+// QuicInlinedFrame is the base class of all frame types that is inlined in the
+// QuicFrame class. It gurantees all inlined frame types contain a 'type' field
+// at offset 0, such that QuicFrame.type can get the correct frame type for both
+// inline and out-of-line frame types.
+template <typename DerivedT>
+struct QUIC_EXPORT_PRIVATE QuicInlinedFrame {
+ QuicInlinedFrame(QuicFrameType type) : type(type) {
+ static_assert(offsetof(DerivedT, type) == 0,
+ "type must be the first field.");
+ static_assert(sizeof(DerivedT) <= 24,
+ "Frames larger than 24 bytes should not be inlined.");
+ }
+ QuicFrameType type;
+};
+
+} // namespace quic
+
+#endif // QUICHE_QUIC_CORE_FRAMES_QUIC_INLINED_FRAME_H_
