Read and restore persisted slice info

chrome/browser/browsing_data/downloads_counter_browsertest.cc

 // Copyright 2016 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/browsing_data/downloads_counter.h"
 
 #include <set>
 
 #include "base/files/file_path.h"
 #include "base/guid.h"
@@ skipping 132 matching lines @@
         time_,
         time_,
         std::string(),
         std::string(),
         1,
         1,
         std::string(),
         state,
         danger,
         reason,
-        false);
+        false,
+        std::vector<content::DownloadItem::ReceivedSlice>());
 
     return guid;
   }
 
   void RemoveDownload(const std::string& guid) {
     content::DownloadItem* item = manager_->GetDownloadByGuid(guid);
     ids_to_remove_.insert(item->GetId());
     item->Remove();
   }
 
@@ skipping 225 matching lines @@
   EXPECT_EQ(7u, GetResult());
 
   SetDeletionPeriodPref(browsing_data::FOUR_WEEKS);
   EXPECT_EQ(8u, GetResult());
 
   SetDeletionPeriodPref(browsing_data::ALL_TIME);
   EXPECT_EQ(11u, GetResult());
 }
 
 }  // namespace