[v8 gc] Introduce a base class for all objects that can have pending activity

third_party/WebKit/Source/modules/notifications/Notification.h

Index: third_party/WebKit/Source/modules/notifications/Notification.h
diff --git a/third_party/WebKit/Source/modules/notifications/Notification.h b/third_party/WebKit/Source/modules/notifications/Notification.h
index 68af8e1882702511e61918f00048e58c2096eb5c..0b9295a0c5aa76d347e32e9503d9834f4355a95d 100644
--- a/third_party/WebKit/Source/modules/notifications/Notification.h
+++ b/third_party/WebKit/Source/modules/notifications/Notification.h
@@ -31,6 +31,7 @@
 #ifndef Notification_h
 #define Notification_h
 
+#include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/SerializedScriptValue.h"
@@ -57,7 +58,7 @@ class NotificationOptions;
 class NotificationPermissionCallback;
 class ScriptState;
 
-class MODULES_EXPORT Notification final : public RefCountedGarbageCollectedEventTargetWithInlineData<Notification>, public ActiveDOMObject, public WebNotificationDelegate {
+class MODULES_EXPORT Notification final : public RefCountedGarbageCollectedEventTargetWithInlineData<Notification>, public ActiveScriptWrappable, public ActiveDOMObject, public WebNotificationDelegate {
     REFCOUNTED_GARBAGE_COLLECTED_EVENT_TARGET(Notification);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(Notification);
     DEFINE_WRAPPERTYPEINFO();
@@ -113,7 +114,9 @@ public:
 
     // ActiveDOMObject interface.
     void stop() override;
-    bool hasPendingActivity() const override;
+
+    // ActiveScriptWrappable interface.
+    bool hasPendingActivity() const final;
 
     DECLARE_VIRTUAL_TRACE();