Change Lo-Fi bool to bitmask to support multiple Previews types

content/browser/loader/mojo_async_resource_handler_unittest.cc

Index: content/browser/loader/mojo_async_resource_handler_unittest.cc
diff --git a/content/browser/loader/mojo_async_resource_handler_unittest.cc b/content/browser/loader/mojo_async_resource_handler_unittest.cc
index e67713a24c73f6e085a63444c40c8314861cfb67..83a26f033da4e3fab1058fac2f0f7cfef32e6aff 100644
--- a/content/browser/loader/mojo_async_resource_handler_unittest.cc
+++ b/content/browser/loader/mojo_async_resource_handler_unittest.cc
@@ -141,11 +141,11 @@ class TestResourceDispatcherHostDelegate final
     ADD_FAILURE() << "RequestComplete should not be called.";
   }
 
-  bool ShouldEnableLoFiMode(
+  int GetPreviewsState(
       const net::URLRequest& url_request,
       content::ResourceContext* resource_context) override {
-    ADD_FAILURE() << "ShouldEnableLoFiMode should not be called.";
-    return false;
+    ADD_FAILURE() << "GetPreviewsState should not be called.";
+    return 0;
   }
 
   NavigationData* GetNavigationData(net::URLRequest* request) const override {