Added last_access_time to DownloadItem and History DB

content/browser/download/download_item_impl.h

Index: content/browser/download/download_item_impl.h
diff --git a/content/browser/download/download_item_impl.h b/content/browser/download/download_item_impl.h
index 47a0b0b6f4fcca54e58ef085d1765eff0828a548..7b953b24387786dc3ddea74fa517f38e6d97c0a6 100644
--- a/content/browser/download/download_item_impl.h
+++ b/content/browser/download/download_item_impl.h
@@ -75,6 +75,7 @@ class CONTENT_EXPORT DownloadItemImpl
       DownloadDangerType danger_type,
       DownloadInterruptReason interrupt_reason,
       bool opened,
+      const base::Time& last_access_time,
       const std::vector<DownloadItem::ReceivedSlice>& received_slices,
       const net::NetLogWithSource& net_log);
 
@@ -162,11 +163,13 @@ class CONTENT_EXPORT DownloadItemImpl
   bool GetOpenWhenComplete() const override;
   bool GetAutoOpened() override;
   bool GetOpened() const override;
+  base::Time GetLastAccessTime() const override;
   BrowserContext* GetBrowserContext() const override;
   WebContents* GetWebContents() const override;
   void OnContentCheckCompleted(DownloadDangerType danger_type) override;
   void SetOpenWhenComplete(bool open) override;
   void SetOpened(bool opened) override;
+  void SetLastAccessTime(const base::Time& last_access_time) override;
   void SetDisplayName(const base::FilePath& name) override;
   std::string DebugString(bool verbose) const override;
 
@@ -621,6 +624,9 @@ class CONTENT_EXPORT DownloadItemImpl
   // be treated as though the user opened it.
   bool opened_ = false;
 
+  // Time when the download was last accessed.
+  base::Time last_access_time_;
+
   // Did the delegate delay calling Complete on this download?
   bool delegate_delayed_complete_ = false;