Support serving offline page by offline ID

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 112 matching lines @@
   std::vector<int64_t> page_ids;
   page_ids.push_back(it->second->offline_id);
   // TODO(dimich): This should be ExpirePages(...Now()..) when Expire is
   // firing Observer method. The resulting Observer notification will update
   // local cache.
   model_->DeletePagesByOfflineId(
       page_ids, base::Bind(&DownloadUIAdapter::OnDeletePagesDone,
                            weak_ptr_factory_.GetWeakPtr()));
 }
 
-GURL DownloadUIAdapter::GetOfflineUrlByGuid(
+int64_t DownloadUIAdapter::GetOfflineIdByGuid(
     const std::string& guid) const {
   // TODO(dimich): when requests are also in the cache, filter them out.
-  // Requests do not yet have offline URL.
+  // Requests do not yet have offline ID.
   DownloadUIItems::const_iterator it = items_.find(guid);
   if (it != items_.end())
-    return it->second->offline_url;
-  return GURL();
+    return it->second->offline_id;
+  return 0;
 }
 
 // Note that several LoadCache calls may be issued before the async GetAllPages
 // comes back.
 void DownloadUIAdapter::LoadCache() {
   // TODO(dimich): Add fetching from RequestQueue as well.
   state_ = State::LOADING;
   model_->GetAllPages(
       base::Bind(&DownloadUIAdapter::OnOfflinePagesLoaded,
                  weak_ptr_factory_.GetWeakPtr()));
@@ skipping 60 matching lines @@
 }
 
 // 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