First past at removing writing mode.

sky/engine/core/css/CSSComputedStyleDeclaration.cpp

Index: sky/engine/core/css/CSSComputedStyleDeclaration.cpp
diff --git a/sky/engine/core/css/CSSComputedStyleDeclaration.cpp b/sky/engine/core/css/CSSComputedStyleDeclaration.cpp
index a4ca0848b4d5482e96777c9441be44de58efd640..b81111176433e42498c28e88b87c5ca6ad705dba 100644
--- a/sky/engine/core/css/CSSComputedStyleDeclaration.cpp
+++ b/sky/engine/core/css/CSSComputedStyleDeclaration.cpp
@@ -303,7 +303,6 @@ static const CSSPropertyID staticComputableProperties[] = {
     CSSPropertyWebkitUserDrag,
     CSSPropertyWebkitUserModify,
     CSSPropertyWebkitUserSelect,
-    CSSPropertyWebkitWritingMode,
     CSSPropertyMaskSourceType,
 };
 
@@ -2409,8 +2408,6 @@ PassRefPtr<CSSValue> CSSComputedStyleDeclaration::getPropertyCSSValue(CSSPropert
         }
         case CSSPropertyPointerEvents:
             return cssValuePool().createValue(style->pointerEvents());
-        case CSSPropertyWebkitWritingMode:
-            return cssValuePool().createValue(style->writingMode());
         case CSSPropertyWebkitTextCombine:
             return cssValuePool().createValue(style->textCombine());
         case CSSPropertyWebkitTextOrientation: