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

chrome/browser/predictors/resource_prefetch_predictor_unittest.cc

Index: chrome/browser/predictors/resource_prefetch_predictor_unittest.cc
diff --git a/chrome/browser/predictors/resource_prefetch_predictor_unittest.cc b/chrome/browser/predictors/resource_prefetch_predictor_unittest.cc
index 62b0effd5b40191a104621912144fec79fcc0684..e9ec62fcdd2012c28a3573774b58a908f99697c9 100644
--- a/chrome/browser/predictors/resource_prefetch_predictor_unittest.cc
+++ b/chrome/browser/predictors/resource_prefetch_predictor_unittest.cc
@@ -19,6 +19,7 @@
 #include "components/history/core/browser/history_service.h"
 #include "components/history/core/browser/history_types.h"
 #include "content/public/browser/resource_request_info.h"
+#include "content/public/common/previews_state.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/url_request_context.h"
@@ -212,7 +213,8 @@ class ResourcePrefetchPredictorTest : public testing::Test {
     request->set_first_party_for_cookies(url);
     content::ResourceRequestInfo::AllocateForTesting(
         request.get(), resource_type, nullptr, render_process_id, -1,
-        render_frame_id, is_main_frame, false, false, true, false);
+        render_frame_id, is_main_frame, false, false, true,
+        content::PREVIEWS_OFF);
     request->Start();
     return request;
   }