restore LOG_FATAL crash key on windows

base/logging.cc

Index: base/logging.cc
diff --git a/base/logging.cc b/base/logging.cc
index 0771b47c182e5c18c868f1124a0784bf411d74a9..75d29f363f01c54b37e24ebf91cdce8d52089ef8 100644
--- a/base/logging.cc
+++ b/base/logging.cc
@@ -53,9 +53,11 @@ typedef pthread_mutex_t* MutexHandle;
 #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"
@@ -537,6 +539,14 @@ LogMessage::~LogMessage() {
   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_,