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 953095aa69f18c80317277b6394f9fdf57e54ef7..bf7e108d58b2bf0b4afaaf80fc7236cf795fbbea 100644
--- a/content/browser/loader/mojo_async_resource_handler_unittest.cc
+++ b/content/browser/loader/mojo_async_resource_handler_unittest.cc
@@ -26,6 +26,7 @@
 #include "content/public/browser/resource_dispatcher_host_delegate.h"
 #include "content/public/browser/resource_throttle.h"
 #include "content/public/browser/stream_info.h"
+#include "content/public/common/previews_state.h"
 #include "content/public/common/resource_response.h"
 #include "content/public/common/resource_type.h"
 #include "content/public/test/test_browser_context.h"
@@ -142,11 +143,11 @@ class TestResourceDispatcherHostDelegate final
     ADD_FAILURE() << "RequestComplete should not be called.";
   }
 
-  bool ShouldEnableLoFiMode(
+  PreviewsState 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 PREVIEWS_UNSPECIFIED;
   }
 
   NavigationData* GetNavigationData(net::URLRequest* request) const override {
@@ -336,7 +337,7 @@ class MojoAsyncResourceHandlerTestBase {
         false,                                   // parent_is_main_frame
         false,                                   // allow_download
         true,                                    // is_async
-        false                                    // is_using_lofi
+        PREVIEWS_OFF                             // previews_state
         );
 
     ResourceRequest request;