Download code cleanup:

chrome/browser/download/download_util.h

 // Copyright (c) 2009 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.
 //
 // Download utilities.
 
 #ifndef CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_
 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_
 
 #include <set>
 #include <string>
 
 #include "base/basictypes.h"
 #include "gfx/native_widget_types.h"
 
 #if defined(TOOLKIT_VIEWS)
 #include "views/view.h"
 #endif
 
 namespace gfx {
 class Canvas;
 }
 
 class BaseDownloadItemModel;
 class DictionaryValue;
 class DownloadItem;
 class FilePath;
+class GURL;
+class ResourceDispatcherHost;
 class SkBitmap;
+class URLRequestContextGetter;
+
+struct DownloadSaveInfo;
 
 namespace download_util {
 
 // Download opening ------------------------------------------------------------
 
 // Whether it is OK to open this download.
 bool CanOpenDownload(DownloadItem* download);
 
 // Open the file associated with this download (wait for the download to
 // complete if it is in progress).
@@ skipping 111 matching lines @@
 
 // Appends the passed the number between parenthesis the path before the
 // extension.
 void AppendNumberToPath(FilePath* path, int number);
 
 // Attempts to find a number that can be appended to that path to make it
 // unique. If |path| does not exist, 0 is returned.  If it fails to find such
 // a number, -1 is returned.
 int GetUniquePathNumber(const FilePath& path);
 
+// Download the URL. Must be called on the IO thread.
+void DownloadUrl(const GURL& url,
+                 const GURL& referrer,
+                 const std::string& referrer_charset,
+                 const DownloadSaveInfo& save_info,
+                 ResourceDispatcherHost* rdh,
+                 int render_process_host_id,
+                 int render_view_id,
+                 URLRequestContextGetter* request_context_getter);
+
+// Tells the resource dispatcher host to cancel a download request.
+// Must be called on the IO thread.
+void CancelDownloadRequest(ResourceDispatcherHost* rdh,
+                           int render_process_id,
+                           int request_id);
+
+
 }  // namespace download_util
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_