Use Distilled path instead of DistilledURL.

ios/chrome/browser/reading_list/reading_list_download_service.cc

Index: ios/chrome/browser/reading_list/reading_list_download_service.cc
diff --git a/ios/chrome/browser/reading_list/reading_list_download_service.cc b/ios/chrome/browser/reading_list/reading_list_download_service.cc
index c6a2a0bb8ecd6188e6f3bc84c3991ae6cc354ad4..fcd385128e65480e6f957abe59b51327a6e11042 100644
--- a/ios/chrome/browser/reading_list/reading_list_download_service.cc
+++ b/ios/chrome/browser/reading_list/reading_list_download_service.cc
@@ -177,13 +177,13 @@ void ReadingListDownloadService::RemoveDownloadedEntry(
 void ReadingListDownloadService::OnDownloadEnd(
     const GURL& url,
     URLDownloader::SuccessState success,
-    const GURL& distilled_url,
+    const base::FilePath& distilled_path,
     const std::string& title) {
   DCHECK(reading_list_model_->loaded());
   if ((success == URLDownloader::DOWNLOAD_SUCCESS ||
        success == URLDownloader::DOWNLOAD_EXISTS) &&
-      distilled_url.is_valid()) {
-    reading_list_model_->SetEntryDistilledURL(url, distilled_url);
+      !distilled_path.empty()) {
+    reading_list_model_->SetEntryDistilledPath(url, distilled_path);
 
   } else if (success == URLDownloader::ERROR_RETRY) {
     reading_list_model_->SetEntryDistilledState(url,