[Sync] Add HistoryService::DeleteURLsForTest

chrome/browser/history/history.h

 // 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.
 
 #ifndef CHROME_BROWSER_HISTORY_HISTORY_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_H_
 #pragma once
 
 #include <set>
 #include <vector>
@@ skipping 362 matching lines @@
   // Requests a page thumbnail. See ThumbnailDataCallback definition above.
   Handle GetPageThumbnail(const GURL& page_url,
                           CancelableRequestConsumerBase* consumer,
                           const ThumbnailDataCallback& callback);
 
   // Database management operations --------------------------------------------
 
   // Delete all the information related to a single url.
   void DeleteURL(const GURL& url);
 
+  // Delete all the information related to a list of urls.  (Deleting
+  // URLs one by one is slow as it has to flush to disk each time.)
+  void DeleteURLsForTest(const std::vector<GURL>& urls);
+
   // Removes all visits in the selected time range (including the start time),
   // updating the URLs accordingly. This deletes the associated data, including
   // the full text index. This function also deletes the associated favicons,
   // if they are no longer referenced. |callback| runs when the expiration is
   // complete. You may use null Time values to do an unbounded delete in
   // either direction.
   // If |restrict_urls| is not empty, only visits to the URLs in this set are
   // removed.
   void ExpireHistoryBetween(const std::set<GURL>& restrict_urls,
                             base::Time begin_time, base::Time end_time,
@@ skipping 466 matching lines @@
   BookmarkService* bookmark_service_;
   bool no_db_;
 
   // True if needs top site migration.
   bool needs_top_sites_migration_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryService);
 };
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_H_