Add new HTTP/2 and HPACK decoder in net/http2/.

net/http2/decoder/payload_decoders/rst_stream_payload_decoder.h

Index: net/http2/decoder/payload_decoders/rst_stream_payload_decoder.h
diff --git a/net/http2/decoder/payload_decoders/rst_stream_payload_decoder.h b/net/http2/decoder/payload_decoders/rst_stream_payload_decoder.h
new file mode 100644
index 0000000000000000000000000000000000000000..cdfd65875d3aaf857ae81292ae1adacf6e9363d4
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+++ b/net/http2/decoder/payload_decoders/rst_stream_payload_decoder.h
@@ -0,0 +1,42 @@
+// Copyright 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.
+
+#ifndef NET_HTTP2_DECODER_PAYLOAD_DECODERS_RST_STREAM_PAYLOAD_DECODER_H_
+#define NET_HTTP2_DECODER_PAYLOAD_DECODERS_RST_STREAM_PAYLOAD_DECODER_H_
+
+// Decodes the payload of a RST_STREAM frame.
+
+#include "net/base/net_export.h"
+#include "net/http2/decoder/decode_buffer.h"
+#include "net/http2/decoder/decode_status.h"
+#include "net/http2/decoder/frame_decoder_state.h"
+#include "net/http2/http2_structures.h"
+
+namespace net {
+namespace test {
+class RstStreamPayloadDecoderPeer;
+}  // namespace test
+
+class NET_EXPORT_PRIVATE RstStreamPayloadDecoder {
+ public:
+  // Starts the decoding of a RST_STREAM frame's payload, and completes it if
+  // the entire payload is in the provided decode buffer.
+  DecodeStatus StartDecodingPayload(FrameDecoderState* state, DecodeBuffer* db);
+
+  // Resumes decoding a RST_STREAM frame's payload that has been split across
+  // decode buffers.
+  DecodeStatus ResumeDecodingPayload(FrameDecoderState* state,
+                                     DecodeBuffer* db);
+
+ private:
+  friend class test::RstStreamPayloadDecoderPeer;
+
+  DecodeStatus HandleStatus(FrameDecoderState* state, DecodeStatus status);
+
+  Http2RstStreamFields rst_stream_fields_;
+};
+
+}  // namespace net
+
+#endif  // NET_HTTP2_DECODER_PAYLOAD_DECODERS_RST_STREAM_PAYLOAD_DECODER_H_