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

net/http2/http2_constants_test_util.h

-// 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_HTTP2_CONSTANTS_TEST_UTIL_H_
-#define NET_HTTP2_HTTP2_CONSTANTS_TEST_UTIL_H_
-
-#include <vector>
-
-#include "net/http2/http2_constants.h"
-
-namespace net {
-namespace test {
-
-// Returns a vector of all supported frame types.
-std::vector<Http2FrameType> AllHttp2FrameTypes();
-
-// Returns a vector of all supported frame flags for the specified
-// frame type. Empty if the type is unknown.
-std::vector<Http2FrameFlag> AllHttp2FrameFlagsForFrameType(Http2FrameType type);
-
-// Returns a vector of all supported RST_STREAM and GOAWAY error codes.
-std::vector<Http2ErrorCode> AllHttp2ErrorCodes();
-
-// Returns a vector of all supported parameters in SETTINGS frames.
-std::vector<Http2SettingsParameter> AllHttp2SettingsParameters();
-
-// Returns a mask of flags supported for the specified frame type. Returns
-// zero for unknown frame types.
-uint8_t KnownFlagsMaskForFrameType(Http2FrameType type);
-
-// Returns a mask of flag bits known to be invalid for the frame type.
-// For unknown frame types, the mask is zero; i.e., we don't know that any
-// are invalid.
-uint8_t InvalidFlagMaskForFrameType(Http2FrameType type);
-
-}  // namespace test
-}  // namespace net
-
-#endif  // NET_HTTP2_HTTP2_CONSTANTS_TEST_UTIL_H_