[Background Sync] Gather UMA data for Background Sync

content/browser/background_sync/background_sync_manager.h

Index: content/browser/background_sync/background_sync_manager.h
diff --git a/content/browser/background_sync/background_sync_manager.h b/content/browser/background_sync/background_sync_manager.h
index e49c815894fcd003337c2519fdfa23313a6077ed..a235dac15b29489cd1e7193f3945ea288c9b1d70 100644
--- a/content/browser/background_sync/background_sync_manager.h
+++ b/content/browser/background_sync/background_sync_manager.h
@@ -48,7 +48,8 @@ class CONTENT_EXPORT BackgroundSyncManager
     ERROR_TYPE_OK = 0,
     ERROR_TYPE_STORAGE,
     ERROR_TYPE_NOT_FOUND,
-    ERROR_TYPE_NO_SERVICE_WORKER
+    ERROR_TYPE_NO_SERVICE_WORKER,
+    ERROR_TYPE_MAX = ERROR_TYPE_NO_SERVICE_WORKER
   };
 
   using StatusCallback = base::Callback<void(ErrorType)>;
@@ -207,11 +208,12 @@ class CONTENT_EXPORT BackgroundSyncManager
       int64 sw_registration_id,
       const RegistrationKey& registration_key,
       BackgroundSyncRegistration::RegistrationId sync_registration_id,
+      SyncPeriodicity periodicity,
       const StatusCallback& callback);
-  void UnregisterDidStore(
-      int64 sw_registration_id,
-      const StatusCallback& callback,
-      ServiceWorkerStatusCode status);
+  void UnregisterDidStore(int64 sw_registration_id,
+                          SyncPeriodicity periodicity,
+                          const StatusCallback& callback,
+                          ServiceWorkerStatusCode status);
 
   // GetRegistration callbacks
   void GetRegistrationImpl(int64 sw_registration_id,
@@ -223,6 +225,7 @@ class CONTENT_EXPORT BackgroundSyncManager
                             SyncPeriodicity periodicity,
                             const StatusAndRegistrationsCallback& callback);
 
+  bool AreOptionConditionsMet(const BackgroundSyncRegistrationOptions& options);
   bool IsRegistrationReadyToFire(
       const BackgroundSyncRegistration& registration);
 
@@ -238,7 +241,8 @@ class CONTENT_EXPORT BackgroundSyncManager
   void FireReadyEventsDidFindRegistration(
       const RegistrationKey& registration_key,
       BackgroundSyncRegistration::RegistrationId registration_id,
-      const base::Closure& callback,
+      const base::Closure& event_fired_callback,
+      const base::Closure& event_completed_callback,
       ServiceWorkerStatusCode service_worker_status,
       const scoped_refptr<ServiceWorkerRegistration>&
           service_worker_registration);
@@ -250,6 +254,7 @@ class CONTENT_EXPORT BackgroundSyncManager
       int64 service_worker_id,
       const RegistrationKey& key,
       BackgroundSyncRegistration::RegistrationId sync_registration_id,
+      const base::Closure& callback,
       ServiceWorkerStatusCode status_code);
   void EventCompleteImpl(
       int64 service_worker_id,
@@ -261,6 +266,9 @@ class CONTENT_EXPORT BackgroundSyncManager
                              const base::Closure& callback,
                              ServiceWorkerStatusCode status_code);
 
+  // Called when all sync events have completed.
+  static void OnAllSyncEventsCompleted(const base::TimeTicks& start_time);
+
   // OnRegistrationDeleted callbacks
   void OnRegistrationDeletedImpl(int64 registration_id,
                                  const base::Closure& callback);
@@ -276,6 +284,7 @@ class CONTENT_EXPORT BackgroundSyncManager
   void CompleteOperationCallback(const CallbackT& callback,
                                  Params... parameters);
   base::Closure MakeEmptyCompletion();
+  base::Closure MakeClosureCompletion(const base::Closure& callback);
   StatusAndRegistrationCallback MakeStatusAndRegistrationCompletion(
       const StatusAndRegistrationCallback& callback);
   StatusAndRegistrationsCallback MakeStatusAndRegistrationsCompletion(