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

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 769bd562ffbacb0bf1aa3f8f03bc760630ddf0a2..611b3a1c4c101b954d8e321becfb0345f319fffc 100644
--- a/content/browser/service_worker/service_worker_url_request_job.cc
+++ b/content/browser/service_worker/service_worker_url_request_job.cc
@@ -258,6 +258,7 @@ void ServiceWorkerURLRequestJob::DidDispatchFetchEvent(
     blob_request_->Start();
   }
 
+  response_url_ = response.url;

[Mike West, 2014/07/09 12:14:46]

What's the lifetime of the RequestJob? Do we need to worry about resetting this
value after the request completes, or do we just destroy the object?

[horo, 2014/07/10 06:17:56]

ServiceWorkerURLRequestJob is created per a request in
ServiceWorkerControlleeRequestHandler::MaybeCreateJob().
So we don't need to worry about resetting the value.

   CreateResponseHeader(
       response.status_code, response.status_text, response.headers);
   if (!blob_request_)
@@ -293,6 +294,8 @@ void ServiceWorkerURLRequestJob::CreateResponseHeader(
 void ServiceWorkerURLRequestJob::CommitResponseHeader() {
   http_response_info_.reset(new net::HttpResponseInfo());
   http_response_info_->headers.swap(http_response_headers_);
+  http_response_info_->was_fetched_via_service_worker = true;
+  http_response_info_->original_url_via_service_worker = response_url_;
   NotifyHeadersComplete();
 }