[Offline Pages] Check for the appropriate namespace when showing notifications.

components/offline_pages/downloads/download_ui_adapter.cc

 // Copyright 2016 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 "components/offline_pages/downloads/download_ui_adapter.h"
 
 #include "base/bind.h"
 #include "base/guid.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
@@ skipping 192 matching lines @@
   for (auto& guid : added_guids) {
     const DownloadUIItem& item = *(items_.find(guid)->second->ui_item.get());
     FOR_EACH_OBSERVER(Observer, observers_, ItemAdded(item));
   }
 }
 
 void DownloadUIAdapter::OnDeletePagesDone(DeletePageResult result) {
   // TODO(dimich): Consider adding UMA to record user actions.
 }
 
+// static
 bool DownloadUIAdapter::IsVisibleInUI(const ClientId& client_id) {
   const std::string& name_space = client_id.name_space;
   return (name_space == kAsyncNamespace || name_space == kDownloadNamespace) &&
          base::IsValidGUID(client_id.id);
 }
 
 }  // namespace offline_pages