Add an OriginFilterBuilder class for [white|black]listing origins.

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:
@@ skipping 96 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 which are same-origin with the given origin and pertain to
-  // the given time constraints. (See |RemoveDownloadsBetween|.)
-  virtual int RemoveDownloadsByOriginAndTime(const url::Origin& origin,
-                                             base::Time remove_begin,
-                                             base::Time remove_end) = 0;
-
-  // Remove downloads after remove_begin (inclusive) and before remove_end
-  // (exclusive). You may pass in null Time values to do an unbounded delete
-  // in either direction.
-  virtual int RemoveDownloadsBetween(base::Time remove_begin,
-                                     base::Time remove_end) = 0;
+  // Remove downloads whose URLs match the |url_filter| and are within
+  // the given time constraints - after remove_begin (inclusive) and before
+  // remove_end (exclusive). You may pass in null Time values to do an unbounded
+  // delete in either direction.
+  virtual int RemoveDownloadsByURLAndTime(
+      const base::Callback<bool(const GURL&)>& url_filter,
+      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 46 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_t id) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_DOWNLOAD_MANAGER_H_