[Offline pages] Use the new policy bits

components/offline_pages/offline_page_model_impl.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/offline_page_model_impl.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/bind.h"
@@ skipping 453 matching lines @@
                  weak_ptr_factory_.GetWeakPtr(), predicate, callback));
 }
 
 void OfflinePageModelImpl::DoDeleteCachedPagesByURLPredicate(
     const UrlPredicate& predicate,
     const DeletePageCallback& callback) {
   DCHECK(is_loaded_);
 
   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);
   }
   DoDeletePagesByOfflineId(offline_ids, callback);
 }
 
 void OfflinePageModelImpl::CheckPagesExistOffline(
     const std::set<GURL>& urls,
     const CheckPagesExistOfflineCallback& callback) {
   RunWhenLoaded(
@@ skipping 636 matching lines @@
 }
 
 void OfflinePageModelImpl::PostClearStorageIfNeededTask() {
   base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE, base::Bind(&OfflinePageModelImpl::ClearStorageIfNeeded,
                             weak_ptr_factory_.GetWeakPtr(),
                             base::Bind(&OfflinePageModelImpl::OnStorageCleared,
                                        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) {
   if (!is_loaded_) {
     delayed_tasks_.push_back(task);
     return;
   }
 
   base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, task);
 }
 
 base::Time OfflinePageModelImpl::GetCurrentTime() const {
   return testing_clock_ ? testing_clock_->Now() : base::Time::Now();
 }
 
 }  // namespace offline_pages