Reland: Reland: Implement new Blink IDL attribute [SetReference]

Source/core/testing/Internals.h

Index: Source/core/testing/Internals.h
diff --git a/Source/core/testing/Internals.h b/Source/core/testing/Internals.h
index a701bdd10c411c7dc94c77275b85b3e8ff49f2f1..8a7e39187c86c1e17537947ff5e67d88581ddc39 100644
--- a/Source/core/testing/Internals.h
+++ b/Source/core/testing/Internals.h
@@ -33,6 +33,7 @@
 #include "core/dom/ContextLifecycleObserver.h"
 #include "core/dom/NodeList.h"
 #include "core/page/scrolling/ScrollingCoordinator.h"
+#include "platform/Timer.h"
 #include "wtf/ArrayBuffer.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
@@ -298,6 +299,9 @@ public:
 
     bool loseSharedGraphicsContext3D();
 
+    void garbageCollectV8WithoutContext();
+    void garbageCollectV8WithoutContextTimerFired(Timer<Internals>*);
+
 private:
     explicit Internals(Document*);
     Document* contextDocument() const;
@@ -311,6 +315,7 @@ private:
     RefPtr<InternalRuntimeFlags> m_runtimeFlags;
     RefPtr<ScrollingCoordinator> m_scrollingCoordinator;
     RefPtr<InternalProfilers> m_profilers;
+    Timer<Internals> m_gcWithoutContextTimer;
 };
 
 } // namespace WebCore