Remove writing mode code from the linebox tree.

sky/engine/core/rendering/style/ShadowList.cpp

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 80 matching lines @@
         if (!fromShadow)
             fromShadow = toShadow->style() == Inset ? &defaultInsetShadowData : &defaultShadowData;
         else if (!toShadow)
             toShadow = fromShadow->style() == Inset ? &defaultInsetShadowData : &defaultShadowData;
         shadows.append(toShadow->blend(*fromShadow, progress));
     }
 
     return ShadowList::adopt(shadows);
 }
 
-PassOwnPtr<DrawLooperBuilder> ShadowList::createDrawLooper(DrawLooperBuilder::ShadowAlphaMode alphaMode, bool isHorizontal) const
+PassOwnPtr<DrawLooperBuilder> ShadowList::createDrawLooper(DrawLooperBuilder::ShadowAlphaMode alphaMode) const
 {
     OwnPtr<DrawLooperBuilder> drawLooperBuilder = DrawLooperBuilder::create();
     for (size_t i = shadows().size(); i--; ) {
         const ShadowData& shadow = shadows()[i];
-        float shadowX = isHorizontal ? shadow.x() : shadow.y();
-        float shadowY = isHorizontal ? shadow.y() : -shadow.x();
-        drawLooperBuilder->addShadow(FloatSize(shadowX, shadowY), shadow.blur(), shadow.color(),
+        drawLooperBuilder->addShadow(FloatSize(shadow.x(), shadow.y()), shadow.blur(), shadow.color(),
             DrawLooperBuilder::ShadowRespectsTransforms, alphaMode);
     }
     drawLooperBuilder->addUnmodifiedContent();
     return drawLooperBuilder.release();
 }
 
 } // namespace blink