Remove backface visibility

sky/engine/core/css/parser/BisonCSSParser-in.cpp

 /*
  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
  * Copyright (C) 2012 Intel Corporation. All rights reserved.
  *
@@ skipping 367 matching lines @@
         return valueID == CSSValueClip || valueID == CSSValueEllipsis;
     case CSSPropertyTextRendering: // auto | optimizeSpeed | optimizeLegibility | geometricPrecision
         return valueID == CSSValueAuto || valueID == CSSValueOptimizespeed || valueID == CSSValueOptimizelegibility || valueID == CSSValueGeometricprecision;
     case CSSPropertyUnicodeBidi:
         return valueID == CSSValueNormal || valueID == CSSValueEmbed
             || valueID == CSSValueBidiOverride || valueID == CSSValueWebkitIsolate
             || valueID == CSSValueWebkitIsolateOverride || valueID == CSSValueWebkitPlaintext;
     case CSSPropertyTouchActionDelay: // none | script
         ASSERT(RuntimeEnabledFeatures::cssTouchActionDelayEnabled());
         return valueID == CSSValueScript || valueID == CSSValueNone;
-    case CSSPropertyBackfaceVisibility:
-    case CSSPropertyWebkitBackfaceVisibility:
-        return valueID == CSSValueVisible || valueID == CSSValueHidden;
     case CSSPropertyWebkitBoxDecorationBreak:
         return valueID == CSSValueClone || valueID == CSSValueSlice;
     case CSSPropertyAlignContent:
         // FIXME: Per CSS alignment, this property should accept an optional <overflow-position>. We should share this parsing code with 'justify-self'.
         return valueID == CSSValueFlexStart || valueID == CSSValueFlexEnd || valueID == CSSValueCenter || valueID == CSSValueSpaceBetween || valueID == CSSValueSpaceAround || valueID == CSSValueStretch;
     case CSSPropertyAlignItems:
         // FIXME: Per CSS alignment, this property should accept the same arguments as 'justify-self' so we should share its parsing code.
         return valueID == CSSValueFlexStart || valueID == CSSValueFlexEnd || valueID == CSSValueCenter || valueID == CSSValueBaseline || valueID == CSSValueStretch;
     case CSSPropertyAlignSelf:
         // FIXME: Per CSS alignment, this property should accept the same arguments as 'justify-self' so we should share its parsing code.
@@ skipping 57 matching lines @@
     case CSSPropertyOverflowY:
     case CSSPropertyPointerEvents:
     case CSSPropertyPosition:
     case CSSPropertyTextAlignLast:
     case CSSPropertyTextDecorationStyle:
     case CSSPropertyTextJustify:
     case CSSPropertyTextOverflow:
     case CSSPropertyTextRendering:
     case CSSPropertyTouchActionDelay:
     case CSSPropertyUnicodeBidi:
-    case CSSPropertyBackfaceVisibility:
-    case CSSPropertyWebkitBackfaceVisibility:
     case CSSPropertyWebkitBorderAfterStyle:
     case CSSPropertyWebkitBorderBeforeStyle:
     case CSSPropertyWebkitBorderEndStyle:
     case CSSPropertyWebkitBorderStartStyle:
     case CSSPropertyWebkitBoxDecorationBreak:
     case CSSPropertyAlignContent:
     case CSSPropertyFlexDirection:
     case CSSPropertyFlexWrap:
     case CSSPropertyJustifyContent:
     case CSSPropertyFontKerning:
@@ skipping 1083 matching lines @@
         m_observer->endProperty(isPropertyParsed, m_tokenizer.safeUserStringTokenOffset(), errorType);
 }
 
 void BisonCSSParser::startEndUnknownRule()
 {
     if (m_observer)
         m_observer->startEndUnknownRule();
 }
 
 }