Include better OpenSSL error information in NetLog.

net/ssl/openssl_ssl_util.h

 // 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.
 
 #ifndef NET_SSL_OPENSSL_SSL_UTIL_H_
 #define NET_SSL_OPENSSL_SSL_UTIL_H_
 
+#include "net/base/net_log.h"
+
 namespace crypto {
 class OpenSSLErrStackTracer;
 }
 
 namespace tracked_objects {
 class Location;
 }
 
 namespace net {
 
 // Puts a net error, |err|, on the error stack in OpenSSL. The file and line are
 // extracted from |posted_from|. The function code of the error is left as 0.
 void OpenSSLPutNetError(const tracked_objects::Location& posted_from, int err);
 
 // Utility to construct the appropriate set & clear masks for use the OpenSSL
 // options and mode configuration functions. (SSL_set_options etc)
 struct SslSetClearMask {
   SslSetClearMask();
   void ConfigureFlag(long flag, bool state);
 
   long set_mask;
   long clear_mask;
 };
 
 // Converts an OpenSSL error code into a net error code, walking the OpenSSL
-// error stack if needed. Note that |tracer| is not currently used in the
-// implementation, but is passed in anyway as this ensures the caller will clear
-// any residual codes left on the error stack.
+// error stack if needed.
+//
+// Note that |tracer| is not currently used in the implementation, but is passed
+// in anyway as this ensures the caller will clear any residual codes left on
+// the error stack.
 int MapOpenSSLError(int err, const crypto::OpenSSLErrStackTracer& tracer);
 
+// Helper struct to store information about an OpenSSL error stack entry.
+struct OpenSSLErrorInfo {
+  OpenSSLErrorInfo() : error_code(0), file(NULL), line(0) {}
+
+  uint32_t error_code;
+  const char* file;
+  int line;
+};
+
+// Converts an OpenSSL error code into a net error code, walking the OpenSSL
+// error stack if needed. If a value on the stack is used, the error code and
+// associated information are returned in |*out_error_info|. Otherwise its
+// fields are set to 0 and NULL.
+//
+// Note that |tracer| is not currently used in the implementation, but is passed
+// in anyway as this ensures the caller will clear any residual codes left on
+// the error stack.
+int MapOpenSSLErrorWithDetails(int err,
+                               const crypto::OpenSSLErrStackTracer& tracer,
+                               OpenSSLErrorInfo* out_error_info);
+
+// Creates NetLog callback for an OpenSSL error.
+NetLog::ParametersCallback CreateNetLogOpenSSLErrorCallback(
+    int net_error,
+    int ssl_error,
+    const OpenSSLErrorInfo& error_info);
+
 }  // namespace net
 
 #endif  // NET_SSL_OPENSSL_SSL_UTIL_H_