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

net/http2/decoder/frame_decoder_state_test_util.h

Index: net/http2/decoder/frame_decoder_state_test_util.h
diff --git a/net/http2/decoder/frame_decoder_state_test_util.h b/net/http2/decoder/frame_decoder_state_test_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..e32a401101c19324266fdd88091ffe658295b4a0
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+++ b/net/http2/decoder/frame_decoder_state_test_util.h
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+// 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_FRAME_DECODER_STATE_TEST_UTIL_H_
+#define NET_HTTP2_DECODER_FRAME_DECODER_STATE_TEST_UTIL_H_
+
+#include "net/http2/decoder/frame_decoder_state.h"
+#include "net/http2/http2_structures.h"
+#include "net/http2/tools/random_decoder_test.h"
+
+namespace net {
+namespace test {
+
+class FrameDecoderStatePeer {
+ public:
+  // Randomizes (i.e. corrupts) the fields of the FrameDecoderState.
+  // PayloadDecoderBaseTest::StartDecoding calls this before passing the first
+  // decode buffer to the payload decoder, which increases the likelihood of
+  // detecting any use of prior states of the decoder on the decoding of
+  // future payloads.
+  static void Randomize(FrameDecoderState* p, RandomBase* rng);
+
+  // Inject a frame header into the FrameDecoderState.
+  // PayloadDecoderBaseTest::StartDecoding calls this just after calling
+  // Randomize (above), to simulate a full frame decoder having just finished
+  // decoding the common frame header and then calling the appropriate payload
+  // decoder based on the frame type in that frame header.
+  static void set_frame_header(const Http2FrameHeader& header,
+                               FrameDecoderState* p);
+};
+
+}  // namespace test
+}  // namespace net
+
+#endif  // NET_HTTP2_DECODER_FRAME_DECODER_STATE_TEST_UTIL_H_