Remove tons of OILPAN.

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

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008 Dirk Schulze <krit@webkit.org>
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  * Copyright (C) 2012, 2013 Intel Corporation. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
@@ skipping 143 matching lines @@
         if (contextLostRestoredEventsEnabled()) {
             m_dispatchContextRestoredEventTimer.startOneShot(0, FROM_HERE);
         } else {
             // legacy synchronous context restoration.
             reset();
             m_isContextLost = false;
         }
     }
 }
 
-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()) {
         RefPtr<Event> event = Event::createCancelable(EventTypeNames::contextlost);
         canvas()->dispatchEvent(event);
         if (event->defaultPrevented()) {
             m_contextRestorable = false;
         }
     }
 
@@ skipping 163 matching lines @@
 }
 
 void CanvasRenderingContext2D::State::fontsNeedUpdate(CSSFontSelector* fontSelector)
 {
     ASSERT_ARG(fontSelector, fontSelector == m_font.fontSelector());
     ASSERT(m_realizedFont);
 
     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();
     if (state().m_unrealizedSaveCount) {
         ASSERT(m_stateStack.size() >= 1);
         // Reduce the current state's unrealized count by one now,
         // to reflect the fact we are saving one state.
         m_stateStack.last()->m_unrealizedSaveCount--;
         m_stateStack.append(adoptPtr(new State(state())));
         // Set the new state's unrealized count to 0, because it has no outstanding saves.
@@ skipping 2087 matching lines @@
 
 unsigned CanvasRenderingContext2D::hitRegionsCount() const
 {
     if (m_hitRegionManager)
         return m_hitRegionManager->getHitRegionsCount();
 
     return 0;
 }
 
 } // namespace blink