Create CrxInstaller directly in WebstoreInstaller

chrome/browser/download/download_crx_util.cc

 // 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.
 //
 // Download code which handles CRX files (extensions, themes, apps, ...).
 
 #include "chrome/browser/download/download_crx_util.h"
 
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/crx_installer.h"
@@ skipping 84 matching lines @@
 
   if (extensions::UserScript::IsURLUserScript(download_item.GetURL(),
                                               download_item.GetMimeType())) {
     installer->InstallUserScript(download_item.GetFullPath(),
                                  download_item.GetURL());
   } else {
     bool is_gallery_download =
         WebstoreInstaller::GetAssociatedApproval(download_item) != NULL;
     installer->set_original_mime_type(download_item.GetOriginalMimeType());
     installer->set_apps_require_extension_mime_type(true);
-    installer->set_download_url(download_item.GetURL());
     installer->set_is_gallery_install(is_gallery_download);
     if (is_gallery_download)
-      installer->set_original_download_url(download_item.GetOriginalUrl());
+      installer->set_download_id(download_item.GetId());
     installer->set_allow_silent_install(is_gallery_download);
     installer->InstallCrx(download_item.GetFullPath());
   }
 
   return installer;
 }
 
 bool IsExtensionDownload(const DownloadItem& download_item) {
   if (download_item.GetTargetDisposition() ==
       DownloadItem::TARGET_DISPOSITION_PROMPT)
@@ skipping 20 matching lines @@
   // The referrer URL must also be whitelisted, unless the URL has the file
   // scheme (there's no referrer for those URLs).
   // TODO(aa): RefererURL is cleared in some cases, for example when going
   // between secure and non-secure URLs. It would be better if DownloadItem
   // tracked the initiating page explicitly.
   return url_patterns.MatchesURL(item.GetReferrerUrl()) ||
          item.GetURL().SchemeIsFile();
 }
 
 }  // namespace download_crx_util