Support restricting browsing data removal for downloads by origin.

content/public/browser/download_manager.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.
 //
 // The DownloadManager object manages the process of downloading, including
 // updates to the history system and providing the information for displaying
 // the downloads view in the Destinations tab. There is one DownloadManager per
 // active browser context in Chrome.
 //
 // Download observers:
 // Objects that are interested in notifications about new downloads, or progress
 // updates for a given download must implement one of the download observer
 // interfaces:
 //   DownloadManager::Observer:
 //     - allows observers, primarily views, to be notified when changes to the
 //       set of all downloads (such as new downloads, or deletes) occur
 // Use AddObserver() / RemoveObserver() on the appropriate download object to
 // receive state updates.
 //
 // Download state persistence:
 // The DownloadManager uses the history service for storing persistent
 // information about the state of all downloads. The history system maintains a
 // separate table for this called 'downloads'. At the point that the
 // DownloadManager is constructed, we query the history service for the state of
 // all persisted downloads.
 
 #ifndef CONTENT_PUBLIC_BROWSER_DOWNLOAD_MANAGER_H_
 #define CONTENT_PUBLIC_BROWSER_DOWNLOAD_MANAGER_H_
 
+#include <set>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/gtest_prod_util.h"
 #include "base/sequenced_task_runner_helpers.h"
 #include "base/time/time.h"
 #include "content/public/browser/download_interrupt_reasons.h"
@@ skipping 63 matching lines @@
 
   // Called by a download source (Currently DownloadResourceHandler)
   // to initiate the non-source portions of a download.
   // Returns the id assigned to the download.  If the DownloadCreateInfo
   // specifies an id, that id will be used.
   virtual void StartDownload(
       scoped_ptr<DownloadCreateInfo> info,
       scoped_ptr<ByteStreamReader> stream,
       const DownloadUrlParameters::OnStartedCallback& on_started) = 0;
 
   // Remove downloads after remove_begin (inclusive) and before remove_end

[Mike West, 2015/07/22 20:16:03]

Poke at the comment to describe the new parameter.

[Timo Reimann, 2015/07/23 23:11:07]

Done.

   // (exclusive). You may pass in null Time values to do an unbounded delete
   // in either direction.
-  virtual int RemoveDownloadsBetween(base::Time remove_begin,
+  virtual int RemoveDownloadsBetween(const std::set<GURL>& restricted_urls,
+                                     base::Time remove_begin,
                                      base::Time remove_end) = 0;
 
   // Remove downloads will delete all downloads that have a timestamp that is
   // the same or more recent than |remove_begin|. The number of downloads
   // deleted is returned back to the caller.
   virtual int RemoveDownloads(base::Time remove_begin) = 0;
 
   // Remove all downloads will delete all downloads. The number of downloads
   // deleted is returned back to the caller.
   virtual int RemoveAllDownloads() = 0;
@@ skipping 47 matching lines @@
   virtual void CheckForHistoryFilesRemoval() = 0;
 
   // Get the download item for |id| if present, no matter what type of download
   // it is or state it's in.
   virtual DownloadItem* GetDownload(uint32 id) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_DOWNLOAD_MANAGER_H_