Add severity info to drive::EventLogger.

chrome/browser/drive/event_logger_unittest.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 "chrome/browser/drive/event_logger.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace drive {
 
 TEST(EventLoggerTest, BasicLogging) {
   EventLogger logger;
   logger.SetHistorySize(3);  // At most 3 events are kept.
   EXPECT_EQ(0U, logger.GetHistory().size());
 
-  logger.Log("first");
-  logger.Log("%dnd", 2);
-  logger.Log("third");
+  logger.Log(logging::LOG_INFO, "first");
+  logger.Log(logging::LOG_INFO, "2nd");
+  logger.Log(logging::LOG_INFO, "third");
 
   // Events are recorded in the chronological order with sequential IDs.
   std::vector<EventLogger::Event> history = logger.GetHistory();
   ASSERT_EQ(3U, history.size());
   EXPECT_EQ(0, history[0].id);
   EXPECT_EQ("first", history[0].what);
   EXPECT_EQ(1, history[1].id);
   EXPECT_EQ("2nd", history[1].what);
   EXPECT_EQ(2, history[2].id);
   EXPECT_EQ("third", history[2].what);
 
-  logger.Log("fourth");
+  logger.Log(logging::LOG_INFO, "fourth");
   // It does not log events beyond the specified.
   history = logger.GetHistory();
   ASSERT_EQ(3U, history.size());
   // The oldest events is pushed out.
   EXPECT_EQ(1, history[0].id);
   EXPECT_EQ("2nd", history[0].what);
   EXPECT_EQ(2, history[1].id);
   EXPECT_EQ("third", history[1].what);
   EXPECT_EQ(3, history[2].id);
   EXPECT_EQ("fourth", history[2].what);
 }
 
 }   // namespace drive