Implement CachedMetadata handling on MojoAsyncResourceHandler

content/browser/service_worker/service_worker_fetch_dispatcher.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/service_worker/service_worker_fetch_dispatcher.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 64 matching lines @@
 // wrapped client.
 class DelegatingURLLoaderClient final : public mojom::URLLoaderClient {
  public:
   explicit DelegatingURLLoaderClient(mojom::URLLoaderClientPtr client)
       : binding_(this), client_(std::move(client)) {}
   ~DelegatingURLLoaderClient() override {}
 
   void OnDataDownloaded(int64_t data_length, int64_t encoded_length) override {
     client_->OnDataDownloaded(data_length, encoded_length);
   }
+  void OnReceiveCachedMetadata(const std::vector<uint8_t>& data) override {
+    client_->OnReceiveCachedMetadata(data);
+  }
   void OnTransferSizeUpdated(int32_t transfer_size_diff) override {
     client_->OnTransferSizeUpdated(transfer_size_diff);
   }
   void OnReceiveResponse(
       const ResourceResponseHead& head,
       mojom::DownloadedTempFilePtr downloaded_file) override {
     client_->OnReceiveResponse(head, std::move(downloaded_file));
   }
   void OnReceiveRedirect(const net::RedirectInfo& redirect_info,
                          const ResourceResponseHead& head) override {
@@ skipping 387 matching lines @@
 }
 
 ServiceWorkerMetrics::EventType ServiceWorkerFetchDispatcher::GetEventType()
     const {
   if (request_->fetch_type == ServiceWorkerFetchType::FOREIGN_FETCH)
     return ServiceWorkerMetrics::EventType::FOREIGN_FETCH;
   return ResourceTypeToEventType(resource_type_);
 }
 
 }  // namespace content