Show service worker navigation preload requests in DevTools Network tab

content/renderer/service_worker/service_worker_context_client.cc

 // Copyright 2015 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/renderer/service_worker/service_worker_context_client.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/lazy_instance.h"
@@ skipping 268 matching lines @@
     const bool report_security_info = false;
     WebURLLoaderImpl::PopulateURLResponse(url_, response_head, response_.get(),
                                           report_security_info);
     MaybeReportResponseToClient();
   }
 
   void OnReceiveRedirect(const net::RedirectInfo& redirect_info,
                          const ResourceResponseHead& response_head) override {
     // This will delete |this|.
     ReportErrorToClient(
-        "Service Worker navigation preload doesn't suport redirect.");
+        "Service Worker navigation preload doesn't support redirects.");
   }
 
   void OnDataDownloaded(int64_t data_length,
                         int64_t encoded_data_length) override {
     NOTREACHED();
   }
 
   void OnReceiveCachedMetadata(const std::vector<uint8_t>& data) override {}
 
   void OnTransferSizeUpdated(int32_t transfer_size_diff) override {
-    NOTREACHED();
+    // TODO(horo): Send this transfer size update notification to DevTools.
   }
 
   void OnStartLoadingResponseBody(
       mojo::ScopedDataPipeConsumerHandle body) override {
     DCHECK(!body_.is_valid());
     body_ = std::move(body);
     MaybeReportResponseToClient();
   }
 
   void OnComplete(const ResourceRequestCompletionStatus& status) override {
     if (status.error_code != net::OK) {
       // This will delete |this|.
       ReportErrorToClient("Service Worker navigation preload network error.");
       return;
     }
 
     ServiceWorkerContextClient* client =
         ServiceWorkerContextClient::ThreadSpecificInstance();
     if (!client)
       return;
     // This will delete |this|.
-    client->OnNavigationPreloadComplete(fetch_event_id_);
+    client->OnNavigationPreloadComplete(fetch_event_id_,
+                                        status.encoded_data_length);
   }
 
  private:
   void MaybeReportResponseToClient() {
     if (!response_ || !body_.is_valid())
       return;
     ServiceWorkerContextClient* client =
         ServiceWorkerContextClient::ThreadSpecificInstance();
     if (!client)
       return;
@@ skipping 612 matching lines @@
   TRACE_EVENT0("ServiceWorker",
                "ServiceWorkerContextClient::OnInstallEvent");
   proxy_->dispatchInstallEvent(request_id);
 }
 
 void ServiceWorkerContextClient::DispatchFetchEvent(
     int fetch_event_id,
     const ServiceWorkerFetchRequest& request,
     mojom::FetchEventPreloadHandlePtr preload_handle,
     const DispatchFetchEventCallback& callback) {
-  std::unique_ptr<NavigationPreloadRequest> preload_request =
-      preload_handle
-          ? base::MakeUnique<NavigationPreloadRequest>(
-                fetch_event_id, request.url, std::move(preload_handle))
-          : nullptr;
+  std::unique_ptr<NavigationPreloadRequest> preload_request;
+  if (preload_handle) {
+    proxy_->onNavigationPreloadSent(fetch_event_id, request.url);
+    preload_request = base::MakeUnique<NavigationPreloadRequest>(
+        fetch_event_id, request.url, std::move(preload_handle));
+  }
   const bool navigation_preload_sent = !!preload_request;
   blink::WebServiceWorkerRequest webRequest;
   TRACE_EVENT0("ServiceWorker",
                "ServiceWorkerContextClient::DispatchFetchEvent");
   context_->fetch_event_callbacks.AddWithID(
       base::MakeUnique<FetchCallback>(callback), fetch_event_id);
   if (preload_request) {
     context_->preload_requests.AddWithID(std::move(preload_request),
                                          fetch_event_id);
   }
@@ skipping 268 matching lines @@
 }
 
 void ServiceWorkerContextClient::OnNavigationPreloadError(
     int fetch_event_id,
     std::unique_ptr<blink::WebServiceWorkerError> error) {
   proxy_->onNavigationPreloadError(fetch_event_id, std::move(error));
   context_->preload_requests.Remove(fetch_event_id);
 }
 
 void ServiceWorkerContextClient::OnNavigationPreloadComplete(
-    int fetch_event_id) {
+    int fetch_event_id,
+    int64_t encoded_data_length) {
+  proxy_->onNavigationPreloadCompleted(fetch_event_id, encoded_data_length);
   context_->preload_requests.Remove(fetch_event_id);
 }
 
 base::WeakPtr<ServiceWorkerContextClient>
 ServiceWorkerContextClient::GetWeakPtr() {
   DCHECK(worker_task_runner_->RunsTasksOnCurrentThread());
   DCHECK(context_);
   return context_->weak_factory.GetWeakPtr();
 }
 
 }  // namespace content