Fix ASAN default suppression symbol mangling on windows

build/sanitizers/sanitizer_options.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.
 //
 // This file contains the default options for various compiler-based dynamic
 // tools.
 
 #include "build/build_config.h"
 
 #if defined(ADDRESS_SANITIZER) && defined(OS_MACOSX)
@@ skipping 83 matching lines @@
   int argc = *argcp;
   for (int i = 0; i < argc; ++i) {
     if (strcmp(argv[i], kNaClFlag) == 0) {
       return kNaClDefaultOptions;
     }
   }
 #endif
   return kAsanDefaultOptions;
 }
 
-extern "C" char kASanDefaultSuppressions[];
+extern char kASanDefaultSuppressions[];
 
 SANITIZER_HOOK_ATTRIBUTE const char *__asan_default_suppressions() {
   return kASanDefaultSuppressions;
 }
 #endif  // OS_LINUX || OS_MACOSX
 #endif  // ADDRESS_SANITIZER
 
 #if defined(THREAD_SANITIZER) && defined(OS_LINUX)
 // Default options for ThreadSanitizer in various configurations:
 //   detect_deadlocks=1 - enable deadlock (lock inversion) detection.
 //   second_deadlock_stack=1 - more verbose deadlock reports.
 //   report_signal_unsafe=0 - do not report async-signal-unsafe functions
 //     called from signal handlers.
 //   report_thread_leaks=0 - do not report unjoined threads at the end of
 //     the program execution.
 //   print_suppressions=1 - print the list of matched suppressions.
 //   history_size=7 - make the history buffer proportional to 2^7 (the maximum
 //     value) to keep more stack traces.
 //   strip_path_prefix=/../../ - prefixes up to and including this
 //     substring will be stripped from source file paths in symbolized reports.
 const char kTsanDefaultOptions[] =
     "detect_deadlocks=1 second_deadlock_stack=1 report_signal_unsafe=0 "
     "report_thread_leaks=0 print_suppressions=1 history_size=7 "
     "strict_memcmp=0 strip_path_prefix=/../../ ";
 
 SANITIZER_HOOK_ATTRIBUTE const char *__tsan_default_options() {
   return kTsanDefaultOptions;
 }
 
-extern "C" char kTSanDefaultSuppressions[];
+extern char kTSanDefaultSuppressions[];
 
 SANITIZER_HOOK_ATTRIBUTE const char *__tsan_default_suppressions() {
   return kTSanDefaultSuppressions;
 }
 
 #endif  // THREAD_SANITIZER && OS_LINUX
 
 #if defined(MEMORY_SANITIZER)
 // Default options for MemorySanitizer:
 //   intercept_memcmp=0 - do not detect uninitialized memory in memcmp() calls.
@@ skipping 14 matching lines @@
 //   print_suppressions=1 - print the list of matched suppressions.
 //   strip_path_prefix=/../../ - prefixes up to and including this
 //     substring will be stripped from source file paths in symbolized reports.
 const char kLsanDefaultOptions[] =
     "print_suppressions=1 strip_path_prefix=/../../ ";
 
 SANITIZER_HOOK_ATTRIBUTE const char *__lsan_default_options() {
   return kLsanDefaultOptions;
 }
 
-extern "C" char kLSanDefaultSuppressions[];
+extern char kLSanDefaultSuppressions[];
 
 SANITIZER_HOOK_ATTRIBUTE const char *__lsan_default_suppressions() {
   return kLSanDefaultSuppressions;
 }
 
 #endif  // LEAK_SANITIZER
 
 #if defined(UNDEFINED_SANITIZER)
 // Default options for UndefinedBehaviorSanitizer:
 //   print_stacktrace=1 - print the stacktrace when UBSan reports an error.
 const char kUbsanDefaultOptions[] =
     "print_stacktrace=1 strip_path_prefix=/../../ ";
 
 SANITIZER_HOOK_ATTRIBUTE const char* __ubsan_default_options() {
   return kUbsanDefaultOptions;
 }
 
 #endif  // UNDEFINED_SANITIZER