Rebuild test history databases when starting up performance_ui_tests.

chrome/browser/history/history_types.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.
 
 #ifndef CHROME_BROWSER_HISTORY_HISTORY_TYPES_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_TYPES_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 575 matching lines @@
 // TopSites -------------------------------------------------------------------
 
 typedef std::vector<MostVisitedURL> MostVisitedURLList;
 typedef std::vector<FilteredURL> FilteredURLList;
 
 // Used by TopSites to store the thumbnails.
 struct Images {
   Images();
   ~Images();
 
-  scoped_refptr<base::RefCountedBytes> thumbnail;
+  scoped_refptr<base::RefCountedMemory> thumbnail;
   ThumbnailScore thumbnail_score;
 
   // TODO(brettw): this will eventually store the favicon.
   // scoped_refptr<base::RefCountedBytes> favicon;
 };
 
 typedef std::vector<MostVisitedURL> MostVisitedURLList;
 
 struct MostVisitedURLWithRank {
   MostVisitedURL url;
@@ skipping 224 matching lines @@
   void SetTimeRangeForOneDay(base::Time time);
 
   std::set<GURL> urls;
   base::Time begin_time;
   base::Time end_time;
 };
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_TYPES_H_