Added last_access_time to DownloadItem and History DB

content/browser/download/download_item_factory.h

Index: content/browser/download/download_item_factory.h
diff --git a/content/browser/download/download_item_factory.h b/content/browser/download/download_item_factory.h
index dc6e9a9a1e42841f19feeec47b88529b9adb26cf..9242c238eb15ffc316c9cf25eeea8417ee547b4a 100644
--- a/content/browser/download/download_item_factory.h
+++ b/content/browser/download/download_item_factory.h
@@ -52,8 +52,8 @@ public:
       const GURL& tab_refererr_url,
       const std::string& mime_type,
       const std::string& original_mime_type,
-      const base::Time& start_time,
-      const base::Time& end_time,
+      base::Time start_time,
+      base::Time end_time,
       const std::string& etag,
       const std::string& last_modified,
       int64_t received_bytes,
@@ -63,6 +63,7 @@ public:
       DownloadDangerType danger_type,
       DownloadInterruptReason interrupt_reason,
       bool opened,
+      base::Time last_access_time,
       const std::vector<DownloadItem::ReceivedSlice>& received_slices,
       const net::NetLogWithSource& net_log) = 0;