Destroy the notification database when corruption occurs.

content/browser/notifications/platform_notification_context_impl.h

Index: content/browser/notifications/platform_notification_context_impl.h
diff --git a/content/browser/notifications/platform_notification_context_impl.h b/content/browser/notifications/platform_notification_context_impl.h
index ddbf2a7169130cf33f940a7f44a87733def37b5d..c84d02950986f7d96939cf923d143a0bff4dd100 100644
--- a/content/browser/notifications/platform_notification_context_impl.h
+++ b/content/browser/notifications/platform_notification_context_impl.h
@@ -58,6 +58,7 @@ class CONTENT_EXPORT PlatformNotificationContextImpl
   // ServiceWorkerContextObserver implementation.
   void OnRegistrationDeleted(int64_t registration_id,
                              const GURL& pattern) override;
+  void OnStorageWiped() override;
 
  private:
   friend class PlatformNotificationContextTest;
@@ -78,7 +79,8 @@ class CONTENT_EXPORT PlatformNotificationContextImpl
   // database has been opened, |success_closure| will be invoked on the task
   // thread, otherwise |failure_closure_| will be invoked on the IO thread.
   void OpenDatabase(const base::Closure& success_closure,
-                    const base::Closure& failure_closure);
+                    const base::Closure& failure_closure,
+                    bool delete_on_corruption);
 
   // Deletes all notifications associated with |service_worker_registration_id|
   // belonging to |origin|. Must be called on the |task_runner_| thread.
@@ -107,6 +109,10 @@ class CONTENT_EXPORT PlatformNotificationContextImpl
                                 const GURL& origin,
                                 const DeleteResultCallback& callback);
 
+  // Destroys the database regardless of its initialization status. This method
+  // must only be called on the |task_runner_| thread.
+  void DestroyDatabase();
+
   // Returns the path in which the database should be initialized. May be empty.
   base::FilePath GetDatabasePath() const;