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

third_party/WebKit/Source/core/fetch/ImageResource.cpp

Index: third_party/WebKit/Source/core/fetch/ImageResource.cpp
diff --git a/third_party/WebKit/Source/core/fetch/ImageResource.cpp b/third_party/WebKit/Source/core/fetch/ImageResource.cpp
index 6fe000c8c1acf49b9c4fe82b04be9d7c7845c191..abc6b4f853711f0b32672c9e48e26aecb0770369 100644
--- a/third_party/WebKit/Source/core/fetch/ImageResource.cpp
+++ b/third_party/WebKit/Source/core/fetch/ImageResource.cpp
@@ -623,8 +623,10 @@ void ImageResource::updateImageAnimationPolicy() {
 }
 
 static bool isLoFiImage(const ImageResource& resource) {
-  if (resource.resourceRequest().loFiState() != WebURLRequest::LoFiOn)
+  if (!(resource.resourceRequest().previewsState() &
+        WebURLRequest::PreviewsState::ServerLoFiOn)) {
     return false;
+  }
   return !resource.isLoaded() ||
          resource.response()
              .httpHeaderField("chrome-proxy-content-transform")