Fix Acid3 Test 48: LINKTEST, Chromium side....

chrome/browser/history/history_database.h

 // Copyright (c) 2006-2008 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_DATABASE_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_DATABASE_H_
 
 #include "base/file_path.h"
 #include "chrome/browser/history/download_database.h"
 #include "chrome/browser/history/history.h"
@@ skipping 103 matching lines @@
 
   // Visit table functions ----------------------------------------------------
 
   // Update the segment id of a visit. Return true on success.
   bool SetSegmentID(VisitID visit_id, SegmentID segment_id);
 
   // Query the segment ID for the provided visit. Return 0 on failure or if the
   // visit id wasn't found.
   SegmentID GetSegmentID(VisitID visit_id);
 
+  // Retrieves/Updates early expiration threshold, which specifies the earliest
+  // known point in history that may possibly to contain visits suitable for
+  // early expiration (AUTO_SUBFRAMES).
+  virtual base::Time GetEarlyExpirationThreshold();
+  virtual void UpdateEarlyExpirationThreshold(base::Time threshold);
+
   // Drops the starred table and star_id from urls.
   bool MigrateFromVersion15ToVersion16();
 
  private:
   // Implemented for URLDatabase.
   virtual sqlite3* GetDB();
   virtual SqliteStatementCache& GetStatementCache();
 
   // Migration -----------------------------------------------------------------
 
@@ skipping 15 matching lines @@
   // statement cache. These must be done in a specific order, so we don't want
   // to rely on C++'s implicit destructors for the individual objects.
   //
   // The close scoper will free the database and delete the statement cache in
   // the correct order automatically when we are destroyed.
   DBCloseScoper db_closer_;
   sqlite3* db_;
   SqliteStatementCache* statement_cache_;
 
   MetaTableHelper meta_table_;
+  base::Time cached_early_expiration_threshold_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryDatabase);
 };
 
 }  // history
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_DATABASE_H_