restore LOG_FATAL crash key on windows

base/logging.cc

 // Copyright (c) 2012 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/logging.h"
 
 #include <limits.h>
 #include <stdint.h>
 
 #include "base/macros.h"
@@ skipping 35 matching lines @@
 typedef pthread_mutex_t* MutexHandle;
 #endif
 
 #include <algorithm>
 #include <cstring>
 #include <ctime>
 #include <iomanip>
 #include <ostream>
 #include <string>
 
+#include "base/auto_reset.h"
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/debug/alias.h"
+#include "base/debug/crash_logging.h"
 #include "base/debug/debugger.h"
 #include "base/debug/stack_trace.h"
 #include "base/posix/eintr_wrapper.h"
 #include "base/strings/string_piece.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/synchronization/lock_impl.h"
 #include "base/threading/platform_thread.h"
@@ skipping 461 matching lines @@
   if (severity_ == LOG_FATAL && !base::debug::BeingDebugged()) {
     // Include a stack trace on a fatal, unless a debugger is attached.
     base::debug::StackTrace trace;
     stream_ << std::endl;  // Newline to separate from log message.
     trace.OutputToStream(&stream_);
   }
 #endif
   stream_ << std::endl;
   std::string str_newline(stream_.str());
 
+// NaCl targets do not have base/debug/crash_logging.cc.
+#if !defined(OS_NACL)
+  if (severity_ == LOG_FATAL) {

[dcheng, 2016/10/06 08:52:40]

This still needs to protect against reentrancy, unless I'm missing something.

[rkuksin, 2016/10/07 07:44:12]

Done.

+    base::debug::SetCrashKeyValue(
+        "LOG_FATAL", base::StringPiece(str_newline.c_str() + message_start_));
+  }
+#endif  // !defined(OS_NACL)
+
   // Give any log message handler first dibs on the message.
   if (log_message_handler &&
       log_message_handler(severity_, file_, line_,
                           message_start_, str_newline)) {
     // The handler took care of it, no further processing.
     return;
   }
 
   if ((g_logging_destination & LOG_TO_SYSTEM_DEBUG_LOG) != 0) {
 #if defined(OS_WIN)
@@ skipping 371 matching lines @@
 BASE_EXPORT void LogErrorNotReached(const char* file, int line) {
   LogMessage(file, line, LOG_ERROR).stream()
       << "NOTREACHED() hit.";
 }
 
 }  // namespace logging
 
 std::ostream& std::operator<<(std::ostream& out, const wchar_t* wstr) {
   return out << (wstr ? base::WideToUTF8(wstr) : std::string());
 }