[Offline pages] Use the new policy bits

components/offline_pages/offline_page_model_impl.cc

Index: components/offline_pages/offline_page_model_impl.cc
diff --git a/components/offline_pages/offline_page_model_impl.cc b/components/offline_pages/offline_page_model_impl.cc
index cfb67fc33925267e49eabbd588ec40d6ad2eda6f..0414fb30be689c658dbaa90cb1057aceec63efdd 100644
--- a/components/offline_pages/offline_page_model_impl.cc
+++ b/components/offline_pages/offline_page_model_impl.cc
@@ -471,7 +471,7 @@ void OfflinePageModelImpl::DoDeleteCachedPagesByURLPredicate(
 
   std::vector<int64_t> offline_ids;
   for (const auto& id_page_pair : offline_pages_) {
-    if (!IsUserRequestedPage(id_page_pair.second) &&
+    if (IsRemovedOnCacheReset(id_page_pair.second) &&
         predicate.Run(id_page_pair.second.url))
       offline_ids.push_back(id_page_pair.first);
   }
@@ -1128,10 +1128,10 @@ void OfflinePageModelImpl::PostClearStorageIfNeededTask() {
                                        weak_ptr_factory_.GetWeakPtr())));
 }
 
-bool OfflinePageModelImpl::IsUserRequestedPage(
+bool OfflinePageModelImpl::IsRemovedOnCacheReset(
     const OfflinePageItem& offline_page) const {
-  return (offline_page.client_id.name_space == kAsyncNamespace ||
-          offline_page.client_id.name_space == kDownloadNamespace);
+  return policy_controller_->IsRemovedOnCacheReset(
+      offline_page.client_id.name_space);
 }
 
 void OfflinePageModelImpl::RunWhenLoaded(const base::Closure& task) {