Add workerReady timing for ServiceWorker controlled requests [2/3]

content/browser/service_worker/service_worker_url_request_job.cc

Index: content/browser/service_worker/service_worker_url_request_job.cc
diff --git a/content/browser/service_worker/service_worker_url_request_job.cc b/content/browser/service_worker/service_worker_url_request_job.cc
index 2db0cfb6ccc4ac116ecabaeb6a7140c07a48b634..666a1be972ddcc3b11799716a16285498ab1128e 100644
--- a/content/browser/service_worker/service_worker_url_request_job.cc
+++ b/content/browser/service_worker/service_worker_url_request_job.cc
@@ -296,7 +296,8 @@ void ServiceWorkerURLRequestJob::GetExtraResponseInfo(
     bool* was_fallback_required_by_service_worker,
     GURL* original_url_via_service_worker,
     blink::WebServiceWorkerResponseType* response_type_via_service_worker,
-    base::TimeTicks* worker_start_time) const {
+    base::TimeTicks* worker_start_time,
+    base::TimeTicks* worker_ready_time) const {
   if (response_type_ != FORWARD_TO_SERVICE_WORKER) {
     *was_fetched_via_service_worker = false;
     *was_fallback_required_by_service_worker = false;
@@ -310,6 +311,7 @@ void ServiceWorkerURLRequestJob::GetExtraResponseInfo(
   *original_url_via_service_worker = response_url_;
   *response_type_via_service_worker = service_worker_response_type_;
   *worker_start_time = worker_start_time_;
+  *worker_ready_time = worker_ready_time_;
 }
 
 
@@ -471,7 +473,8 @@ bool ServiceWorkerURLRequestJob::CreateRequestBodyBlob(std::string* blob_uuid,
 }
 
 void ServiceWorkerURLRequestJob::DidPrepareFetchEvent() {
-  load_timing_info_.send_start = base::TimeTicks::Now();
+  worker_ready_time_ = base::TimeTicks::Now();
+  load_timing_info_.send_start = worker_ready_time_;
 }
 
 void ServiceWorkerURLRequestJob::DidDispatchFetchEvent(