Introduce ServiceWorker.ActivatedWorkerPreparationForMainFrame.Time UMA.

content/browser/service_worker/service_worker_context_watcher.h

 // Copyright 2015 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_CONTEXT_WATCHER_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WATCHER_H_
 
 #include <stdint.h>
 
 #include <vector>
 
 #include "base/callback.h"
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "content/browser/service_worker/service_worker_context_observer.h"
 #include "content/browser/service_worker/service_worker_info.h"
 
 namespace content {
 
 class ServiceWorkerContextWrapper;
+enum class EmbeddedWorkerStatus;
 
 // Used to monitor the status change of the ServiceWorker registrations and
 // versions in the ServiceWorkerContext from UI thread.
 class ServiceWorkerContextWatcher
     : public ServiceWorkerContextObserver,
       public base::RefCountedThreadSafe<ServiceWorkerContextWatcher> {
  public:
   typedef base::Callback<void(
       const std::vector<ServiceWorkerRegistrationInfo>&)>
       WorkerRegistrationUpdatedCallback;
@@ skipping 35 matching lines @@
   void SendVersionInfo(const ServiceWorkerVersionInfo& version);
 
   // ServiceWorkerContextObserver implements
   void OnNewLiveRegistration(int64_t registration_id,
                              const GURL& pattern) override;
   void OnNewLiveVersion(int64_t version_id,
                         int64_t registration_id,
                         const GURL& script_url) override;
   void OnRunningStateChanged(
       int64_t version_id,
-      content::ServiceWorkerVersion::RunningStatus running_status) override;
+      content::EmbeddedWorkerStatus running_status) override;
   void OnVersionStateChanged(
       int64_t version_id,
       content::ServiceWorkerVersion::Status status) override;
   void OnMainScriptHttpResponseInfoSet(
       int64_t version_id,
       base::Time script_response_time,
       base::Time script_last_modified) override;
   void OnErrorReported(int64_t version_id,
                        int process_id,
                        int thread_id,
@@ skipping 18 matching lines @@
       version_info_map_;
   scoped_refptr<ServiceWorkerContextWrapper> context_;
   WorkerRegistrationUpdatedCallback registration_callback_;
   WorkerVersionUpdatedCallback version_callback_;
   WorkerErrorReportedCallback error_callback_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WATCHER_H_