Oilpan: move Screen and its supplement to the oilpan heap.

Source/core/frame/Screen.cpp

Index: Source/core/frame/Screen.cpp
diff --git a/Source/core/frame/Screen.cpp b/Source/core/frame/Screen.cpp
index 269e6af44cd1bf29ff8354a2c468d91d9393187d..edc3186946e5eb70cdeb354c77c8c4c2d6bf97a5 100644
--- a/Source/core/frame/Screen.cpp
+++ b/Source/core/frame/Screen.cpp
@@ -132,4 +132,11 @@ ExecutionContext* Screen::executionContext() const
     return m_frame->document();
 }
 
+void Screen::trace(Visitor* visitor)
+{
+#if ENABLE(OILPAN)

[haraken, 2014/03/14 11:39:45]

Is this flag needed?

[zerny-chromium, 2014/03/14 11:54:48]

This is needed after a recent change because Supplementable no longer has a
trace method for the non GC case.

[sof, 2014/03/14 12:01:31]

Yes, we don't add a virtual trace() for the non-heap Supplementables.

+    HeapSupplementable<Screen>::trace(visitor);
+#endif
+}
+
 } // namespace WebCore