ServiceWorker: Add UMA for Activate and Install event results.

content/browser/service_worker/service_worker_registration.cc

 // 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.
 
 #include "content/browser/service_worker/service_worker_registration.h"
 
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/browser/service_worker/service_worker_info.h"
+#include "content/browser/service_worker/service_worker_metrics.h"
 #include "content/browser/service_worker/service_worker_register_job.h"
 #include "content/browser/service_worker/service_worker_utils.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace content {
 
 namespace {
 
 ServiceWorkerVersionInfo GetVersionInfo(ServiceWorkerVersion* version) {
   if (!version)
@@ skipping 270 matching lines @@
   activating_version->DispatchActivateEvent(
       base::Bind(&ServiceWorkerRegistration::OnActivateEventFinished,
                  this, activating_version));
 }
 
 void ServiceWorkerRegistration::OnActivateEventFinished(
     ServiceWorkerVersion* activating_version,
     ServiceWorkerStatusCode status) {
   if (!context_ || activating_version != active_version())
     return;
+  ServiceWorkerMetrics::RecordActivateEventStatus(status);
+
   // "If activateFailed is true, then:..."
   if (status != SERVICE_WORKER_OK) {
     // "Set registration's active worker to null." (The spec's step order may
     // differ. It's OK because the other steps queue a task.)
     UnsetVersion(activating_version);
 
     // "Run the Update State algorithm passing registration's active worker and
     // 'redundant' as the arguments."
     activating_version->SetStatus(ServiceWorkerVersion::REDUNDANT);
 
@@ skipping 80 matching lines @@
   if (!context_) {
     callback.Run(SERVICE_WORKER_ERROR_ABORT);
     return;
   }
   context_->storage()->NotifyDoneInstallingRegistration(
       this, version.get(), status);
   callback.Run(status);
 }
 
 }  // namespace content