Allow ExternalRegistryLoader to download packages from an update URL.

chrome/browser/extensions/external_provider_impl.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.
 
 #include "chrome/browser/extensions/external_provider_impl.h"
 
 #include <set>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 477 matching lines @@
 #endif
 
 #if defined(OS_WIN)
     provider_list->push_back(
         linked_ptr<ExternalProviderInterface>(
             new ExternalProviderImpl(
                 service,
                 new ExternalRegistryLoader,
                 profile,
                 Manifest::EXTERNAL_REGISTRY,
-                Manifest::INVALID_LOCATION,
+                Manifest::EXTERNAL_PREF_DOWNLOAD,
                 Extension::NO_FLAGS)));
 #endif
 
 #if !defined(OS_CHROMEOS)
     // The default apps are installed as INTERNAL but use the external
     // extension installer codeflow.
     provider_list->push_back(
         linked_ptr<ExternalProviderInterface>(
             new default_apps::Provider(
                 profile,
@@ skipping 12 matching lines @@
             service,
             new ExternalComponentLoader(profile),
             profile,
             Manifest::INVALID_LOCATION,
             Manifest::EXTERNAL_COMPONENT,
             Extension::FROM_WEBSTORE | Extension::WAS_INSTALLED_BY_DEFAULT)));
   }
 }
 
 }  // namespace extensions