Remove dead code in SafeBrowsingDatabaseManager.

chrome/browser/safe_browsing/database_manager.h

 // 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.
 //
 // The Safe Browsing service is responsible for downloading anti-phishing and
 // anti-malware tables and checking urls against them.
 
 #ifndef CHROME_BROWSER_SAFE_BROWSING_DATABASE_MANAGER_H_
 #define CHROME_BROWSER_SAFE_BROWSING_DATABASE_MANAGER_H_
 
@@ skipping 170 matching lines @@
   // Called on the IO thread to cancel a pending check if the result is no
   // longer needed.
   void CancelCheck(Client* client);
 
   // Called on the IO thread when the SafeBrowsingProtocolManager has received
   // the full hash results for prefix hits detected in the database.
   void HandleGetHashResults(SafeBrowsingCheck* check,
                             const std::vector<SBFullHashResult>& full_hashes,
                             const base::TimeDelta& cache_lifetime);
 
-  // Log the user perceived delay caused by SafeBrowsing. This delay is the time
-  // delta starting from when we would have started reading data from the
-  // network, and ending when the SafeBrowsing check completes indicating that
-  // the current page is 'safe'.
-  void LogPauseDelay(base::TimeDelta time);
-
   // Called to initialize objects that are used on the io_thread.  This may be
   // called multiple times during the life of the DatabaseManager. Should be
   // called on IO thread.
   void StartOnIOThread();
 
   // Called to stop or shutdown operations on the io_thread. This may be called
   // multiple times during the life of the DatabaseManager. Should be called
   // on IO thread. If shutdown is true, the manager is disabled permanently.
   void StopOnIOThread(bool shutdown);
 
@@ skipping 206 matching lines @@
 
   std::deque<QueuedCheck> queued_checks_;
 
   // Timeout to use for safe browsing checks.
   base::TimeDelta check_timeout_;
 
   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingDatabaseManager);
 };
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_DATABASE_MANAGER_H_