Update from https://crrev.com/308331

sky/engine/platform/graphics/GraphicsContext.cpp

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 1453 matching lines @@
 void GraphicsContext::clipRRect(const SkRRect& rect, AntiAliasingMode aa, SkRegion::Op op)
 {
     if (contextDisabled())
         return;
 
     realizeCanvasSave();
 
     m_canvas->clipRRect(rect, op, aa == AntiAliased);
 }
 
-void GraphicsContext::beginCull(const FloatRect& rect)
-{
-    if (contextDisabled())
-        return;
-
-    realizeCanvasSave();
-    m_canvas->pushCull(rect);
-}
-
-void GraphicsContext::endCull()
-{
-    if (contextDisabled())
-        return;
-
-    realizeCanvasSave();
-
-    m_canvas->popCull();
-}
-
 void GraphicsContext::rotate(float angleInRadians)
 {
     if (contextDisabled())
         return;
 
     realizeCanvasSave();
 
     m_canvas->rotate(WebCoreFloatToSkScalar(angleInRadians * (180.0f / 3.14159265f)));
 }
 
@@ skipping 363 matching lines @@
         // FIXME: This is to not break tests (it results in the filter bitmap flag
         // being set to true). We need to decide if we respect InterpolationNone
         // being returned from computeInterpolationQuality.
         resampling = InterpolationLow;
     }
     resampling = limitInterpolationQuality(this, resampling);
     paint->setFilterLevel(static_cast<SkPaint::FilterLevel>(resampling));
 }
 
 } // namespace blink