[ServiceWorker] Mojofy InstallEvent of Service Worker

third_party/WebKit/Source/modules/serviceworkers/InstallEvent.h

Index: third_party/WebKit/Source/modules/serviceworkers/InstallEvent.h
diff --git a/third_party/WebKit/Source/modules/serviceworkers/InstallEvent.h b/third_party/WebKit/Source/modules/serviceworkers/InstallEvent.h
index e2fb165655ac6a1a5dbe7bdd949762914746adb5..bb1511c9d0dfb611c28d98e9b4a058020c54dd72 100644
--- a/third_party/WebKit/Source/modules/serviceworkers/InstallEvent.h
+++ b/third_party/WebKit/Source/modules/serviceworkers/InstallEvent.h
@@ -20,6 +20,7 @@ class MODULES_EXPORT InstallEvent : public ExtendableEvent {
                               const ExtendableEventInit&);
   static InstallEvent* Create(const AtomicString& type,
                               const ExtendableEventInit&,
+                              const int event_id,
                               WaitUntilObserver*);
 
   ~InstallEvent() override;
@@ -34,7 +35,9 @@ class MODULES_EXPORT InstallEvent : public ExtendableEvent {
   InstallEvent(const AtomicString& type, const ExtendableEventInit&);
   InstallEvent(const AtomicString& type,
                const ExtendableEventInit&,
+               const int event_id,
                WaitUntilObserver*);
+  int event_id_;
 };
 
 }  // namespace blink