Remove tons of OILPAN.

sky/engine/core/page/EventHandler.cpp

Index: sky/engine/core/page/EventHandler.cpp
diff --git a/sky/engine/core/page/EventHandler.cpp b/sky/engine/core/page/EventHandler.cpp
index a8a45a6ea671713685980f555b8352db78a25653..6e1ecb8b2c7d497955fa83f241c40045899ff636 100644
--- a/sky/engine/core/page/EventHandler.cpp
+++ b/sky/engine/core/page/EventHandler.cpp
@@ -184,25 +184,6 @@ EventHandler::~EventHandler()
     ASSERT(!m_fakeMouseMoveEventTimer.isActive());
 }
 
-void EventHandler::trace(Visitor* visitor)
-{
-#if ENABLE(OILPAN)
-    visitor->trace(m_mousePressNode);
-    visitor->trace(m_capturingMouseEventsNode);
-    visitor->trace(m_nodeUnderMouse);
-    visitor->trace(m_lastNodeUnderMouse);
-    visitor->trace(m_clickNode);
-    visitor->trace(m_dragTarget);
-    visitor->trace(m_latchedWheelEventNode);
-    visitor->trace(m_previousWheelScrolledNode);
-    visitor->trace(m_targetForTouchID);
-    visitor->trace(m_touchSequenceDocument);
-    visitor->trace(m_scrollGestureHandlingNode);
-    visitor->trace(m_previousGestureScrolledNode);
-    visitor->trace(m_lastDeferredTapElement);
-#endif
-}
-
 void EventHandler::clear()
 {
     m_hoverTimer.stop();