Adding the Previews infobar to pages that show a client LoFi image

components/data_reduction_proxy/content/browser/content_lofi_decider.cc

Index: components/data_reduction_proxy/content/browser/content_lofi_decider.cc
diff --git a/components/data_reduction_proxy/content/browser/content_lofi_decider.cc b/components/data_reduction_proxy/content/browser/content_lofi_decider.cc
index f600474209e79d6a53f1f31e3462e89a25855216..445948b738c4af9ee0b18ab5c7dd8a8c13508301 100644
--- a/components/data_reduction_proxy/content/browser/content_lofi_decider.cc
+++ b/components/data_reduction_proxy/content/browser/content_lofi_decider.cc
@@ -212,4 +212,13 @@ bool ContentLoFiDecider::ShouldRecordLoFiUMA(
          params::IsIncludedInLoFiControlFieldTrial();
 }
 
+bool ContentLoFiDecider::IsClientLoFiImageRequest(
+    const net::URLRequest& request) const {
+  const content::ResourceRequestInfo* request_info =
+      content::ResourceRequestInfo::ForRequest(&request);
+  return request_info &&
+         request_info->GetResourceType() == content::RESOURCE_TYPE_IMAGE &&
+         request_info->GetPreviewsState() & content::CLIENT_LOFI_ON;
+}
+
 }  // namespace data_reduction_proxy