Deprecate hpack_table_size flag, remove dead code.

net/spdy/fuzzing/hpack_fuzz_mutator.cc

-// Copyright 2014 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.
-
-#include "base/command_line.h"
-#include "base/files/file.h"
-#include "base/files/file_util.h"
-#include "base/strings/string_number_conversions.h"
-#include "net/spdy/fuzzing/hpack_fuzz_util.h"
-
-namespace {
-
-// Specifies a file having HPACK header sets.
-const char kFileToParse[] = "file-to-parse";
-
-// Target file for mutated HPACK header sets.
-const char kFileToWrite[] = "file-to-write";
-
-// Number of bits to flip per 1,024 bytes of input.
-const char kFlipsPerThousand[] = "flips-per-thousand-bytes";
-
-}  // namespace
-
-using base::StringPiece;
-using net::HpackFuzzUtil;
-using std::string;
-
-// Reads length-prefixed input blocks, applies a bit-flipping mutation to each
-// block, and writes length-prefixed blocks to the output file. While blocks
-// themselves are mutated, the length-prefixes of written blocks are not.
-int main(int argc, char** argv) {
-  base::CommandLine::Init(argc, argv);
-  const base::CommandLine& command_line =
-      *base::CommandLine::ForCurrentProcess();
-
-  if (!command_line.HasSwitch(kFileToParse) ||
-      !command_line.HasSwitch(kFileToWrite) ||
-      !command_line.HasSwitch(kFlipsPerThousand)) {
-    LOG(ERROR) << "Usage: " << argv[0]
-               << " --" << kFileToParse << "=/path/to/file.in"
-               << " --" << kFileToWrite << "=/path/to/file.out"
-               << " --" << kFlipsPerThousand << "=10";
-    return -1;
-  }
-  string file_to_parse = command_line.GetSwitchValueASCII(kFileToParse);
-  string file_to_write = command_line.GetSwitchValueASCII(kFileToWrite);
-
-  int flip_ratio = 0;
-  CHECK(base::StringToInt(command_line.GetSwitchValueASCII(kFlipsPerThousand),
-                    &flip_ratio));
-
-  DVLOG(1) << "Reading input from " << file_to_parse;
-  HpackFuzzUtil::Input input;
-  CHECK(base::ReadFileToString(base::FilePath::FromUTF8Unsafe(file_to_parse),
-                               &input.input));
-
-  DVLOG(1) << "Writing output to " << file_to_write;
-  base::File file_out(base::FilePath::FromUTF8Unsafe(file_to_write),
-                      base::File::FLAG_CREATE_ALWAYS | base::File::FLAG_WRITE);
-  CHECK(file_out.IsValid()) << file_out.error_details();
-
-  DVLOG(1) << "Flipping " << flip_ratio << " bits per 1024 input bytes";
-
-  size_t block_count = 0;
-  StringPiece block;
-  while (HpackFuzzUtil::NextHeaderBlock(&input, &block)) {
-    HpackFuzzUtil::FlipBits(
-        reinterpret_cast<uint8_t*>(const_cast<char*>(block.data())),
-        block.size(), flip_ratio);
-
-    string prefix = HpackFuzzUtil::HeaderBlockPrefix(block.size());
-
-    CHECK_LT(0, file_out.WriteAtCurrentPos(prefix.data(), prefix.size()));
-    CHECK_LT(0, file_out.WriteAtCurrentPos(block.data(), block.size()));
-    ++block_count;
-  }
-  CHECK(file_out.Flush());
-  DVLOG(1) << "Mutated " << block_count << " blocks.";
-  return 0;
-}