[Offline Pages] Remove load state from public OfflinePageModel API.

components/ntp_snippets/offline_pages/offline_pages_test_utils.h

Index: components/ntp_snippets/offline_pages/offline_pages_test_utils.h
diff --git a/components/ntp_snippets/offline_pages/offline_pages_test_utils.h b/components/ntp_snippets/offline_pages/offline_pages_test_utils.h
index caa4f9c689fee426d0db9f43c83ec25331235a71..4e7abfc526bae15e0354f9ba82848f291145e23e 100644
--- a/components/ntp_snippets/offline_pages/offline_pages_test_utils.h
+++ b/components/ntp_snippets/offline_pages/offline_pages_test_utils.h
@@ -27,12 +27,8 @@ class FakeOfflinePageModel : public offline_pages::StubOfflinePageModel {
   const std::vector<offline_pages::OfflinePageItem>& items();
   std::vector<offline_pages::OfflinePageItem>* mutable_items();
 
-  bool is_loaded() const override;
-  void set_is_loaded(bool value);
-
  private:
   std::vector<offline_pages::OfflinePageItem> items_;
-  bool is_loaded_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeOfflinePageModel);
 };