Show service worker navigation preload requests in DevTools Network tab.

content/browser/devtools/service_worker_devtools_agent_host.cc

Index: content/browser/devtools/service_worker_devtools_agent_host.cc
diff --git a/content/browser/devtools/service_worker_devtools_agent_host.cc b/content/browser/devtools/service_worker_devtools_agent_host.cc
index 0745308c983acdb949b4c69d523b86684251fb0e..50cd14136a709c8fd1dc8aeca4fdbd65ba0196e0 100644
--- a/content/browser/devtools/service_worker_devtools_agent_host.cc
+++ b/content/browser/devtools/service_worker_devtools_agent_host.cc
@@ -5,6 +5,7 @@
 #include "content/browser/devtools/service_worker_devtools_agent_host.h"
 
 #include "base/strings/stringprintf.h"
+#include "content/browser/devtools/protocol/network_handler.h"
 #include "content/browser/devtools/service_worker_devtools_manager.h"
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/browser/service_worker/service_worker_version.h"
@@ -115,6 +116,42 @@ void ServiceWorkerDevToolsAgentHost::WorkerVersionDoomed() {
   version_doomed_time_ = base::Time::Now();
 }
 
+void ServiceWorkerDevToolsAgentHost::NavigationPreloadRequestSent(
+    const std::string& request_id,
+    const ResourceRequest& request) {
+  if (!session())
+    return;
+  if (protocol::NetworkHandler* network_handler =
+          protocol::NetworkHandler::FromSession(session())) {
+    network_handler->NavigationPreloadRequestSent(worker_id().first, request_id,
+                                                  request);
+  }
+}
+
+void ServiceWorkerDevToolsAgentHost::NavigationPreloadResponseReceived(
+    const std::string& request_id,
+    const GURL& url,
+    const ResourceResponseHead& head) {
+  if (!session())
+    return;
+  if (protocol::NetworkHandler* network_handler =
+          protocol::NetworkHandler::FromSession(session())) {
+    network_handler->NavigationPreloadResponseReceived(worker_id().first,
+                                                       request_id, url, head);
+  }
+}
+
+void ServiceWorkerDevToolsAgentHost::NavigationPreloadCompleted(
+    const std::string& request_id,
+    const ResourceRequestCompletionStatus& completion_status) {
+  if (!session())
+    return;
+  if (protocol::NetworkHandler* network_handler =
+          protocol::NetworkHandler::FromSession(session())) {
+    network_handler->NavigationPreloadCompleted(request_id, completion_status);
+  }
+}
+
 int64_t ServiceWorkerDevToolsAgentHost::service_worker_version_id() const {
   return service_worker_->version_id();
 }