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 7416f176854d7e230a3907619b153a47d9e4612d..c809da5b2686d8b1647b13e55c7e17df1d35edb0 100644
--- a/content/browser/service_worker/service_worker_fetch_dispatcher.cc
+++ b/content/browser/service_worker/service_worker_fetch_dispatcher.cc
@@ -80,6 +80,11 @@ 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);
   }