[Not for review] record detailed time breakdown of SW related requests.

content/browser/service_worker/service_worker_context_request_handler.h

Index: content/browser/service_worker/service_worker_context_request_handler.h
diff --git a/content/browser/service_worker/service_worker_context_request_handler.h b/content/browser/service_worker/service_worker_context_request_handler.h
index 26bf3869d41dcf21e5285fc1651f917dbffed1d9..7910e4280b1a83cbdd864e68a3247c774d6fb88c 100644
--- a/content/browser/service_worker/service_worker_context_request_handler.h
+++ b/content/browser/service_worker/service_worker_context_request_handler.h
@@ -8,6 +8,7 @@
 #include <stdint.h>
 
 #include "base/macros.h"
+#include "base/time/time.h"
 #include "content/browser/service_worker/service_worker_request_handler.h"
 
 namespace content {
@@ -58,7 +59,8 @@ class CONTENT_EXPORT ServiceWorkerContextRequestHandler
       base::WeakPtr<ServiceWorkerContextCore> context,
       base::WeakPtr<ServiceWorkerProviderHost> provider_host,
       base::WeakPtr<storage::BlobStorageContext> blob_storage_context,
-      ResourceType resource_type);
+      ResourceType resource_type,
+      base::TimeTicks request_start);
   ~ServiceWorkerContextRequestHandler() override;
 
   // Called via custom URLRequestJobFactory.
@@ -75,6 +77,7 @@ class CONTENT_EXPORT ServiceWorkerContextRequestHandler
                                          CreateJobStatus* out_status);
 
   scoped_refptr<ServiceWorkerVersion> version_;
+  const base::TimeTicks creation_time;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerContextRequestHandler);
 };