[ServiceWorker] Propagates ServiceWorker fetched response's URL and wasFetchedViaServiceWorker flag.

content/browser/loader/resource_loader.cc

 // Copyright (c) 2012 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/loader/resource_loader.h"
 
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/time/time.h"
@@ skipping 36 matching lines @@
   response->head.content_length = request->GetExpectedContentSize();
   request->GetMimeType(&response->head.mime_type);
   net::HttpResponseInfo response_info = request->response_info();
   response->head.was_fetched_via_spdy = response_info.was_fetched_via_spdy;
   response->head.was_npn_negotiated = response_info.was_npn_negotiated;
   response->head.npn_negotiated_protocol =
       response_info.npn_negotiated_protocol;
   response->head.connection_info = response_info.connection_info;
   response->head.was_fetched_via_proxy = request->was_fetched_via_proxy();
   response->head.socket_address = request->GetSocketAddress();
+  response->head.was_fetched_via_service_worker =
+      request->was_fetched_via_service_worker();
+  response->head.original_url_via_service_worker =
+      request->original_url_via_service_worker();
   AppCacheInterceptor::GetExtraResponseInfo(
       request,
       &response->head.appcache_id,
       &response->head.appcache_manifest_url);
   // TODO(mmenke):  Figure out if LOAD_ENABLE_LOAD_TIMING is safe to remove.
   if (request->load_flags() & net::LOAD_ENABLE_LOAD_TIMING)
     request->GetLoadTimingInfo(&response->head.load_timing);
 }
 
 }  // namespace
@@ skipping 629 matching lines @@
       case net::URLRequestStatus::FAILED:
         status = STATUS_UNDEFINED;
         break;
     }
 
     UMA_HISTOGRAM_ENUMERATION("Net.Prefetch.Pattern", status, STATUS_MAX);
   }
 }
 
 }  // namespace content