Remove dead code in SafeBrowsingDatabaseManager.

chrome/browser/safe_browsing/database_manager.h

Index: chrome/browser/safe_browsing/database_manager.h
diff --git a/chrome/browser/safe_browsing/database_manager.h b/chrome/browser/safe_browsing/database_manager.h
index a3e011761e2f30b1999e0ab51e407885218c4e72..e93a65e6bc127f915c4498c9fed216f682be0a96 100644
--- a/chrome/browser/safe_browsing/database_manager.h
+++ b/chrome/browser/safe_browsing/database_manager.h
@@ -188,12 +188,6 @@ class SafeBrowsingDatabaseManager
                             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.