Implement upload progress handling in 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 85cf9d7db3ad27aae10f29f51f41cb6f0955f03d..c50ad9f2416042eade3a11c328417351fee8458c 100644
--- a/content/browser/service_worker/service_worker_fetch_dispatcher.cc
+++ b/content/browser/service_worker/service_worker_fetch_dispatcher.cc
@@ -87,6 +87,11 @@ class DelegatingURLLoaderClient final : public mojom::URLLoaderClient {
   void OnDataDownloaded(int64_t data_length, int64_t encoded_length) override {
     client_->OnDataDownloaded(data_length, encoded_length);
   }
+  void OnUploadProgress(int64_t current_position,
+                        int64_t total_size,
+                        const base::Closure& ack_callback) override {
+    client_->OnUploadProgress(current_position, total_size, ack_callback);
+  }
   void OnReceiveCachedMetadata(const std::vector<uint8_t>& data) override {
     client_->OnReceiveCachedMetadata(data);
   }