Downloads: Added transient flag to download item and download database

content/browser/download/download_item_impl.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 CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_H_
 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 59 matching lines @@
       const std::string& etag,
       const std::string& last_modified,
       int64_t received_bytes,
       int64_t total_bytes,
       const std::string& hash,
       DownloadItem::DownloadState state,
       DownloadDangerType danger_type,
       DownloadInterruptReason interrupt_reason,
       bool opened,
       base::Time last_access_time,
+      bool transient,
       const std::vector<DownloadItem::ReceivedSlice>& received_slices,
       const net::NetLogWithSource& net_log);
 
   // Constructing for a regular download.
   // |net_log| is constructed externally for our use.
   DownloadItemImpl(DownloadItemImplDelegate* delegate,
                    uint32_t id,
                    const DownloadCreateInfo& info,
                    const net::NetLogWithSource& net_log);
 
@@ skipping 68 matching lines @@
       const override;
   base::Time GetStartTime() const override;
   base::Time GetEndTime() const override;
   bool CanShowInFolder() override;
   bool CanOpenDownload() override;
   bool ShouldOpenFileBasedOnExtension() override;
   bool GetOpenWhenComplete() const override;
   bool GetAutoOpened() override;
   bool GetOpened() const override;
   base::Time GetLastAccessTime() const override;
+  bool IsTransient() 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(base::Time last_access_time) override;
   void SetDisplayName(const base::FilePath& name) override;
   std::string DebugString(bool verbose) const override;
 
   // All remaining public interfaces virtual to allow for DownloadItemImpl
@@ skipping 444 matching lines @@
 
   // Did the user open the item either directly or indirectly (such as by
   // setting always open files of this type)? The shelf also sets this field
   // when the user closes the shelf before the item has been opened but should
   // be treated as though the user opened it.
   bool opened_ = false;
 
   // Time when the download was last accessed.
   base::Time last_access_time_;
 
+  // Whether the download item should be transient and not shown in the UI.
+  bool transient_ = false;
+
   // Did the delegate delay calling Complete on this download?
   bool delegate_delayed_complete_ = false;
 
   // Error return from DestinationError.  Stored separately from
   // last_reason_ so that we can avoid handling destination errors until
   // after file name determination has occurred.
   DownloadInterruptReason destination_error_ = DOWNLOAD_INTERRUPT_REASON_NONE;
 
   // The following fields describe the current state of the download file.
 
@@ skipping 53 matching lines @@
   std::unique_ptr<DownloadJob> job_;
 
   base::WeakPtrFactory<DownloadItemImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadItemImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_H_