Add severity info to drive::EventLogger.

chrome/browser/sync_file_system/logger.cc

 // Copyright 2013 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 "chrome/browser/sync_file_system/logger.h"
 
 #include "base/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/location.h"
 #include "base/strings/stringprintf.h"
@@ skipping 36 matching lines @@
 
   va_list args;
   va_start(args, format);
   base::StringAppendV(&what, format, args);
   va_end(args);
 
   // Log to WebUI regardless of LogSeverity (e.g. ignores command line flags).
   // On thread-safety: LazyInstance guarantees thread-safety for the object
   // creation. EventLogger::Log() internally maintains the lock.
   drive::EventLogger* ptr = g_logger.Pointer();
-  ptr->Log("[%s] %s", LogSeverityToString(severity), what.c_str());
+  ptr->Log(severity, base::StringPrintf("[%s] %s",
+                                        LogSeverityToString(severity),
+                                        what.c_str()));
 
   // Log to console if the severity is at or above the min level.
   // LOG_VERBOSE logs are also output if the verbosity of this module
   // (sync_file_system/logger) is >= 1.
   // TODO(kinuko,calvinlo): Reconsider this logging hack, it's not recommended
   // to directly use LogMessage.
   if (severity < logging::GetMinLogLevel() && !VLOG_IS_ON(1))
     return;
   logging::LogMessage(location.file_name(), location.line_number(), severity)
       .stream() << what;
 }
 
 std::vector<drive::EventLogger::Event> GetLogHistory() {
   drive::EventLogger* ptr = g_logger.Pointer();
   return ptr->GetHistory();
 }
 
 }  // namespace util
 }  // namespace sync_file_system