[Offline pages] Resetting offline page metadata store if initial load fails

components/offline_pages/offline_page_test_store.h

Index: components/offline_pages/offline_page_test_store.h
diff --git a/components/offline_pages/offline_page_test_store.h b/components/offline_pages/offline_page_test_store.h
index 7464bdd15e07d1e3077381cd13d131bf018c29cd..ef58e112bac2782ace3e721b6143a8955c0be7eb 100644
--- a/components/offline_pages/offline_page_test_store.h
+++ b/components/offline_pages/offline_page_test_store.h
@@ -28,6 +28,8 @@ class OfflinePageTestStore : public OfflinePageMetadataStore {
     WRITE_FAILED,
     LOAD_FAILED,
     REMOVE_FAILED,
+    RESET_SUCCESS,
+    RESET_FAILED,
   };
 
   explicit OfflinePageTestStore(
@@ -36,7 +38,7 @@ class OfflinePageTestStore : public OfflinePageMetadataStore {
   ~OfflinePageTestStore() override;
 
   // OfflinePageMetadataStore overrides:
-  void GetOfflinePages(const LoadCallback& callback) override;
+  void GetOfflinePages(const GetOfflinePagesCallback& callback) override;
   void AddOfflinePage(const OfflinePageItem& offline_page,
                       const AddCallback& callback) override;
   void UpdateOfflinePages(const std::vector<OfflinePageItem>& pages,
@@ -58,11 +60,14 @@ class OfflinePageTestStore : public OfflinePageMetadataStore {
   const OfflinePageItem& last_saved_page() const { return last_saved_page_; }
 
   void set_test_scenario(TestScenario scenario) { scenario_ = scenario; };
+  bool reset_called() const { return reset_called_; }
 
  private:
   OfflinePageItem last_saved_page_;
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   TestScenario scenario_;
+  bool reset_called_;
+  StoreState store_state_;
 
   std::map<int64_t, OfflinePageItem> offline_pages_;