Remove tons of OILPAN.

sky/engine/core/html/canvas/CanvasRenderingContext2D.cpp

Index: sky/engine/core/html/canvas/CanvasRenderingContext2D.cpp
diff --git a/sky/engine/core/html/canvas/CanvasRenderingContext2D.cpp b/sky/engine/core/html/canvas/CanvasRenderingContext2D.cpp
index 18467c3839211bb9168a7b026bb066224f3ccd88..53657df9d635b6a22cbff8a7188d1be863d8e759 100644
--- a/sky/engine/core/html/canvas/CanvasRenderingContext2D.cpp
+++ b/sky/engine/core/html/canvas/CanvasRenderingContext2D.cpp
@@ -161,16 +161,6 @@ void CanvasRenderingContext2D::restoreContext()
     }
 }
 
-void CanvasRenderingContext2D::trace(Visitor* visitor)
-{
-#if ENABLE(OILPAN)
-    visitor->trace(m_stateStack);
-    visitor->trace(m_fetchedFonts);
-    visitor->trace(m_hitRegionManager);
-#endif
-    CanvasRenderingContext::trace(visitor);
-}
-
 void CanvasRenderingContext2D::dispatchContextLostEvent(Timer<CanvasRenderingContext2D>*)
 {
     if (contextLostRestoredEventsEnabled()) {
@@ -354,13 +344,6 @@ void CanvasRenderingContext2D::State::fontsNeedUpdate(CSSFontSelector* fontSelec
     m_font.update(fontSelector);
 }
 
-void CanvasRenderingContext2D::State::trace(Visitor* visitor)
-{
-    visitor->trace(m_strokeStyle);
-    visitor->trace(m_fillStyle);
-    CSSFontSelectorClient::trace(visitor);
-}
-
 void CanvasRenderingContext2D::realizeSaves(GraphicsContext* context)
 {
     validateStateStack();