[libfuzzer] remove icu fuzzers (moved to //third_party/icu/fuzzers).

(Counterpart to https://codereview.chromium.org/1995823002)

BUG=539572

Review-Url: https://codereview.chromium.org/1995833002
Cr-Commit-Position: refs/heads/master@{#397838}

BUILD.gn

@@ -740,6 +740,7 @@ group("gn_only") {
     deps += [
       "//testing/libfuzzer/fuzzers",
       "//testing/libfuzzer/tests:libfuzzer_tests",
+      "//third_party/icu/fuzzers",
     ]
   }
 

testing/libfuzzer/fuzzers/BUILD.gn

@@ -183,15 +183,6 @@ fuzzer_test("libxml_xml_read_memory_fuzzer") {
   dict = "dicts/xml.dict"
 }
 
-fuzzer_test("unicode_string_codepage_create_fuzzer") {
-  sources = [
-    "unicode_string_codepage_create_fuzzer.cc",
-  ]
-  deps = [
-    "//third_party/icu",
-  ]
-}
-
 fuzzer_test("libpng_read_fuzzer") {
   sources = [
     "libpng_read_fuzzer.cc",
@@ -203,17 +194,6 @@ fuzzer_test("libpng_read_fuzzer") {
   dict = "dicts/png.dict"
 }
 
-fuzzer_test("icu_uregex_open_fuzzer") {
-  sources = [
-    "icu_uregex_open_fuzzer.cc",
-  ]
-  deps = [
-    "//third_party/icu",
-  ]
-  dict = "dicts/icu_regex.dict"
-  libfuzzer_options = [ "max_len=128" ]
-}
-
 fuzzer_test("v8_script_parser_fuzzer") {
   sources = []
   deps = [

testing/libfuzzer/fuzzers/dicts/icu_regex.dict

-# 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.
-
-"\\a"
-"\\A"
-"\\b"
-"\\B"
-"\\cX"
-"\\cC"
-"\\cZ"
-"\\d"
-"\\D"
-"\\e"
-"\\u001B"
-"\\E"
-"\\f"
-"\\u000C"
-"\\G"
-"\\h"
-"\\u0009"
-"\\H"
-"\\k"
-"\\n"
-"\\N"
-"\\p"
-"\\P"
-"{"
-"}"
-"\\Q"
-"\\r"
-"\\u000D"
-"\\R"
-"\\u000a"
-"\\u000b"
-"\\u000c"
-"\\u000d"
-"\\u0085"
-"\\u2028"
-"\\u2029"
-"\\s"
-"[\\t\\n\\f\\r\\p{Z}]"
-"\\S"
-"\\t"
-"\\u0009"
-"\\u"
-"\\uf0ff"
-"\\U"
-"\\U0010ffff."
-"\\v"
-"\\V"
-"\\w"
-"\\W"
-"\\x"
-"\\xhh"
-"\\X"
-"\\Z"
-"\\z"
-"\\n"
-"\\0"
-"\\0ooo"
-"."
-"^"
-"$"
-"\\"
-"|"
-"*"
-"+"
-"?"
-","
-"*?"
-"+?"
-"??"
-"*+"
-"++"
-"?+"
-"("
-"(?:"
-"(?>"
-"(?#"
-"(?="
-"(?!"
-"(?<="
-"(?<!"
-"(?"
-"-"
-")"
-":"
-"(?ismwx-ismwx:"
-"(?ismwx-ismwx)"
-"(?i)"
-"["
-"]"
-"[\\u0000-\\U0010ffff]"
-"[:script=Greek:]"
-"{script=Greek}"
-"gC"
-"sc"
-"scx"
-"WB"
-"Nd"
-"d"
-"MN"

testing/libfuzzer/fuzzers/icu_uregex_open_fuzzer.cc

-// 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.
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include "third_party/icu/source/i18n/unicode/regex.h"
-
-// Entry point for LibFuzzer.
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
-  UParseError pe = { 0 };
-  UErrorCode status = U_ZERO_ERROR;
-  URegularExpression* re = uregex_open(reinterpret_cast<const UChar*>(data),
-                                       static_cast<int>(size) / sizeof(UChar),
-                                       0, &pe, &status);
-  if (re)
-    uregex_close(re);
-
-  return 0;
-}

testing/libfuzzer/fuzzers/unicode_string_codepage_create_fuzzer.cc

-// Copyright 2015 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 <stddef.h>
-#include <stdint.h>
-
-#include <algorithm>
-#include <array>
-#include <vector>
-
-#include "third_party/icu/source/common/unicode/unistr.h"
-
-// Taken from third_party/icu/source/data/mappings/convrtrs.txt file.
-static const std::array<const char*, 45> kConverters = {
-  {
-    "UTF-8",
-    "utf-16be",
-    "utf-16le",
-    "UTF-32",
-    "UTF-32BE",
-    "UTF-32LE",
-    "ibm866-html",
-    "iso-8859-2-html",
-    "iso-8859-3-html",
-    "iso-8859-4-html",
-    "iso-8859-5-html",
-    "iso-8859-6-html",
-    "iso-8859-7-html",
-    "iso-8859-8-html",
-    "ISO-8859-8-I",
-    "iso-8859-10-html",
-    "iso-8859-13-html",
-    "iso-8859-14-html",
-    "iso-8859-15-html",
-    "iso-8859-16-html",
-    "koi8-r-html",
-    "koi8-u-html",
-    "macintosh-html",
-    "windows-874-html",
-    "windows-1250-html",
-    "windows-1251-html",
-    "windows-1252-html",
-    "windows-1253-html",
-    "windows-1254-html",
-    "windows-1255-html",
-    "windows-1256-html",
-    "windows-1257-html",
-    "windows-1258-html",
-    "x-mac-cyrillic-html",
-    "windows-936-2000",
-    "gb18030",
-    "big5-html",
-    "euc-jp-html",
-    "ISO_2022,locale=ja,version=0",
-    "shift_jis-html",
-    "euc-kr-html",
-    "ISO-2022-KR",
-    "ISO-2022-CN",
-    "ISO-2022-CN-EXT",
-    "HZ-GB-2312"
-  }
-};
-
-// Entry point for LibFuzzer.
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
-  if (size < 2)
-    return 0;
-
-  // Need null-terminated string.
-  std::vector<char> buffer(size, 0);
-  // First byte will be used for random decisions.
-  unsigned char selector = data[0];
-  size -= 1;
-  std::copy(data + 1, data + size, buffer.data());
-
-  // Pointer to a part of fuzzer's data or to some valid codepage value.
-  char* codepage;
-
-  if (selector & 1) {
-    // Use random codepage value provided by fuzzer (split data in two parts).
-    // Remove least significant bit because we already used it as input value.
-    size_t codepage_length = (selector >> 1) & 0xF;
-    if (size <= codepage_length)
-      size /= 2;
-    else
-      size -= codepage_length;
-
-    codepage = buffer.data() + size;
-  } else {
-    // Use one of valid codepage values.
-    // Remove least significant bit because we already used it as input value.
-    size_t index = (selector >> 1) % kConverters.size();
-    codepage = const_cast<char*>(kConverters[index]);
-  }
-
-  icu::UnicodeString unicode_string(buffer.data(),
-                                    static_cast<int>(size),
-                                    codepage);
-
-  return 0;
-}