Dispatch transfer size update notification on mojo-loading

content/browser/service_worker/service_worker_fetch_dispatcher.cc

Index: content/browser/service_worker/service_worker_fetch_dispatcher.cc
diff --git a/content/browser/service_worker/service_worker_fetch_dispatcher.cc b/content/browser/service_worker/service_worker_fetch_dispatcher.cc
index c074651cb42c469b58061bf9905ee12c50504dfb..ff20932a3a1db9eec2a33a82f898a6e9343306e7 100644
--- a/content/browser/service_worker/service_worker_fetch_dispatcher.cc
+++ b/content/browser/service_worker/service_worker_fetch_dispatcher.cc
@@ -81,6 +81,9 @@ class DelegatingURLLoaderClient final : public mojom::URLLoaderClient {
   void OnDataDownloaded(int64_t data_length, int64_t encoded_length) override {
     client_->OnDataDownloaded(data_length, encoded_length);
   }
+  void OnTransferSizeUpdated(int32_t transfer_size_diff) override {
+    client_->OnTransferSizeUpdated(transfer_size_diff);
+  }
   void OnReceiveResponse(
       const ResourceResponseHead& head,
       mojom::DownloadedTempFilePtr downloaded_file) override {