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

third_party/WebKit/Source/modules/presentation/PresentationRequest.h

Index: third_party/WebKit/Source/modules/presentation/PresentationRequest.h
diff --git a/third_party/WebKit/Source/modules/presentation/PresentationRequest.h b/third_party/WebKit/Source/modules/presentation/PresentationRequest.h
index 8e355b7a0c22e3a51f539b5f60e9586e9fea7ea6..64479b1a63086aee7e6cbd2adf0441efb5120a0c 100644
--- a/third_party/WebKit/Source/modules/presentation/PresentationRequest.h
+++ b/third_party/WebKit/Source/modules/presentation/PresentationRequest.h
@@ -5,6 +5,7 @@
 #ifndef PresentationRequest_h
 #define PresentationRequest_h
 
+#include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "core/dom/ActiveDOMObject.h"
 #include "core/events/EventTarget.h"
@@ -18,6 +19,7 @@ namespace blink {
 // which websites can start or join presentation connections.
 class PresentationRequest final
     : public RefCountedGarbageCollectedEventTargetWithInlineData<PresentationRequest>
+    , public ActiveScriptWrappable
     , public ActiveDOMObject {
     REFCOUNTED_GARBAGE_COLLECTED_EVENT_TARGET(PresentationRequest);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(PresentationRequest);
@@ -31,8 +33,8 @@ public:
     const AtomicString& interfaceName() const override;
     ExecutionContext* getExecutionContext() const override;
 
-    // ActiveDOMObject implementation.
-    bool hasPendingActivity() const;
+    // ActiveScriptWrappable implementation.
+    bool hasPendingActivity() const final;
 
     ScriptPromise start(ScriptState*);
     ScriptPromise reconnect(ScriptState*, const String& id);