Remove tons of OILPAN.

sky/engine/core/css/MediaQueryMatcher.cpp

Index: sky/engine/core/css/MediaQueryMatcher.cpp
diff --git a/sky/engine/core/css/MediaQueryMatcher.cpp b/sky/engine/core/css/MediaQueryMatcher.cpp
index 948efdd171a6e158622a89dfb5e17f86a474b1ed..070fdd4314441dab104f246bd5e6928354d69655 100644
--- a/sky/engine/core/css/MediaQueryMatcher.cpp
+++ b/sky/engine/core/css/MediaQueryMatcher.cpp
@@ -144,13 +144,4 @@ void MediaQueryMatcher::viewportChanged()
     m_document->enqueueMediaQueryChangeListeners(listenersToNotify);
 }
 
-void MediaQueryMatcher::trace(Visitor* visitor)
-{
-#if ENABLE(OILPAN)
-    visitor->trace(m_document);
-    visitor->trace(m_mediaLists);
-    visitor->trace(m_viewportListeners);
-#endif
-}
-
 }