Introduce ServiceWorker.MainFramePageLoad.CoreTransition and RedirectChainLength UMAs.

content/browser/service_worker/service_worker_metrics.h

 // Copyright 2014 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_METRICS_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_METRICS_H_
 
 #include <stddef.h>
 
 #include "base/macros.h"
 #include "base/time/time.h"
 #include "content/browser/service_worker/service_worker_database.h"
 #include "content/common/service_worker/service_worker_types.h"
 #include "third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerResponseError.h"
+#include "ui/base/page_transition_types.h"
 
 class GURL;
 
 namespace content {
 
 enum class EmbeddedWorkerStatus;
 
 class ServiceWorkerMetrics {
  public:
   // Used for UMA. Append-only.
@@ skipping 141 matching lines @@
   static void CountWriteDatabaseResult(ServiceWorkerDatabase::Status status);
   static void RecordDestroyDatabaseResult(ServiceWorkerDatabase::Status status);
 
   // Used for ServiceWorkerStorage.
   static void RecordPurgeResourceResult(int net_error);
   static void RecordDeleteAndStartOverResult(DeleteAndStartOverResult result);
 
   // Counts the number of page loads controlled by a Service Worker.
   static void CountControlledPageLoad(Site site,
                                       const GURL& url,
-                                      bool is_main_frame_load);
+                                      bool is_main_frame_load,
+                                      ui::PageTransition page_transition,
+                                      size_t redirect_chain_length);
 
   // Records the result of trying to start a worker. |is_installed| indicates
   // whether the version has been installed.
   static void RecordStartWorkerStatus(ServiceWorkerStatusCode status,
                                       EventType purpose,
                                       bool is_installed);
 
   // Records the time taken to successfully start a worker. |is_installed|
   // indicates whether the version has been installed.
   static void RecordStartWorkerTime(base::TimeDelta time,
@@ skipping 95 matching lines @@
   static void RecordStartStatusAfterFailure(int failure_count,
                                             ServiceWorkerStatusCode status);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(ServiceWorkerMetrics);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_METRICS_H_