Add ExpireHistoryBackend::DeleteURLs method

chrome/browser/history/history_backend.cc

 // Copyright (c) 2011 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/history/history_backend.h"
 
 #include <list>
 #include <map>
 #include <set>
 #include <vector>
@@ skipping 1976 matching lines @@
   db_task_requests_.clear();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 // Generic operations
 //
 ////////////////////////////////////////////////////////////////////////////////
 
 void HistoryBackend::DeleteURLs(const std::vector<GURL>& urls) {
-  for (std::vector<GURL>::const_iterator url = urls.begin(); url != urls.end();
-       ++url) {
-    expirer_.DeleteURL(*url);
-  }
+  expirer_.DeleteURLs(urls);
 
   db_->GetStartDate(&first_recorded_time_);
   // Force a commit, if the user is deleting something for privacy reasons, we
   // want to get it on disk ASAP.
   Commit();
 }
 
 void HistoryBackend::DeleteURL(const GURL& url) {
   expirer_.DeleteURL(url);
 
@@ skipping 303 matching lines @@
         break;
       }
     }
   }
   UMA_HISTOGRAM_TIMES("History.GetFavIconFromDB",  // historical name
                       TimeTicks::Now() - beginning_time);
   return success;
 }
 
 }  // namespace history