Keep workerStart timing info over request job restarts

content/browser/service_worker/service_worker_url_request_job.h

 // 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.
 
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_URL_REQUEST_JOB_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_URL_REQUEST_JOB_H_
 
 #include <map>
 #include <string>
 
@@ skipping 98 matching lines @@
   // StreamRegisterObserver override:
   void OnStreamRegistered(Stream* stream) override;
 
   void GetExtraResponseInfo(
       bool* was_fetched_via_service_worker,
       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;
 
+  const base::TimeTicks& worker_start_time() const {
+    return worker_start_time_;
+  }
+
  protected:
   ~ServiceWorkerURLRequestJob() override;
 
  private:
   enum ResponseType {
     NOT_DETERMINED,
     FALLBACK_TO_NETWORK,
     FORWARD_TO_SERVICE_WORKER,
   };
 
@@ skipping 75 matching lines @@
   scoped_refptr<ServiceWorkerVersion> streaming_version_;
 
   base::WeakPtrFactory<ServiceWorkerURLRequestJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerURLRequestJob);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_URL_REQUEST_JOB_H_