[WebAPKs] Plumb service worker scope to notifications

chrome/browser/notifications/notification.h

Index: chrome/browser/notifications/notification.h
diff --git a/chrome/browser/notifications/notification.h b/chrome/browser/notifications/notification.h
index 6c7b9f205e8b09ecbeb0df1e53fd5e96d71bb63e..542b49ea747237c4e0e9439b316fbe6b94be78d0 100644
--- a/chrome/browser/notifications/notification.h
+++ b/chrome/browser/notifications/notification.h
@@ -43,6 +43,11 @@ class Notification : public message_center::Notification {
   // A unique identifier used to update (replace) or remove a notification.
   const std::string& tag() const { return tag_; }
 
+  const GURL& service_worker_scope() const { return service_worker_scope_; }
+  void set_service_worker_scope(const GURL& service_worker_scope) {
+    service_worker_scope_ = service_worker_scope;
+  }
+
   // Id of the delegate embedded inside this instance.
   std::string delegate_id() const { return delegate()->id(); }
 
@@ -52,6 +57,10 @@ class Notification : public message_center::Notification {
   // The user-supplied tag for the notification.
   std::string tag_;
 
+  // The service worker scope if the notification was displayed by a service
+  // worker.

[Peter Beverloo, 2016/07/19 14:17:17]

nit: maybe specify that it's used for WebAPKs?

+  GURL service_worker_scope_;
+
   // A proxy object that allows access back to the JavaScript object that
   // represents the notification, for firing events.
   scoped_refptr<NotificationDelegate> delegate_;