ServiceWorker: Add UMA to measure execution times of oninstall/onfetch

content/browser/service_worker/service_worker_dispatcher_host.h

 // Copyright 2013 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_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_
 
 #include <vector>
 
 #include "base/id_map.h"
@@ skipping 149 matching lines @@
   int render_process_id_;
   MessagePortMessageFilter* const message_port_message_filter_;
   scoped_refptr<ServiceWorkerContextWrapper> context_wrapper_;
 
   IDMap<ServiceWorkerHandle, IDMapOwnPointer> handles_;
   IDMap<ServiceWorkerRegistrationHandle, IDMapOwnPointer> registration_handles_;
 
   bool channel_ready_;  // True after BrowserMessageFilter::sender_ != NULL.
   ScopedVector<IPC::Message> pending_messages_;
 
+  IDMap<base::TimeTicks, IDMapExternalPointer> registration_start_timings_;

[nhiroki, 2014/09/26 07:28:17]

Why don't you use std::map?

[shimazu, 2014/09/29 08:15:47]

Done.

+
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerDispatcherHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_