Remove backface visibility

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

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 24 matching lines @@
     , m_aspectRatioDenominator(RenderStyle::initialAspectRatioDenominator())
     , m_aspectRatioNumerator(RenderStyle::initialAspectRatioNumerator())
     , m_perspective(RenderStyle::initialPerspective())
     , m_perspectiveOriginX(RenderStyle::initialPerspectiveOriginX())
     , m_perspectiveOriginY(RenderStyle::initialPerspectiveOriginY())
     , m_clipPath(RenderStyle::initialClipPath())
     , m_textDecorationColor(StyleColor::currentColor())
     , m_order(RenderStyle::initialOrder())
     , m_objectPosition(RenderStyle::initialObjectPosition())
     , m_transformStyle3D(RenderStyle::initialTransformStyle3D())
-    , m_backfaceVisibility(RenderStyle::initialBackfaceVisibility())
     , m_alignContent(RenderStyle::initialAlignContent())
     , m_alignItems(RenderStyle::initialAlignItems())
     , m_alignItemsOverflowAlignment(RenderStyle::initialAlignItemsOverflowAlignment())
     , m_alignSelf(RenderStyle::initialAlignSelf())
     , m_alignSelfOverflowAlignment(RenderStyle::initialAlignSelfOverflowAlignment())
     , m_justifyContent(RenderStyle::initialJustifyContent())
     , textOverflow(RenderStyle::initialTextOverflow())
     , m_textDecorationStyle(RenderStyle::initialTextDecorationStyle())
     , m_wrapFlow(RenderStyle::initialWrapFlow())
     , m_wrapThrough(RenderStyle::initialWrapThrough())
@@ skipping 22 matching lines @@
     , m_filter(o.m_filter)
     , m_counterDirectives(o.m_counterDirectives ? clone(*o.m_counterDirectives) : nullptr)
     , m_boxShadow(o.m_boxShadow)
     , m_animations(o.m_animations ? CSSAnimationData::create(*o.m_animations) : nullptr)
     , m_transitions(o.m_transitions ? CSSTransitionData::create(*o.m_transitions) : nullptr)
     , m_clipPath(o.m_clipPath)
     , m_textDecorationColor(o.m_textDecorationColor)
     , m_order(o.m_order)
     , m_objectPosition(o.m_objectPosition)
     , m_transformStyle3D(o.m_transformStyle3D)
-    , m_backfaceVisibility(o.m_backfaceVisibility)
     , m_alignContent(o.m_alignContent)
     , m_alignItems(o.m_alignItems)
     , m_alignItemsOverflowAlignment(o.m_alignItemsOverflowAlignment)
     , m_alignSelf(o.m_alignSelf)
     , m_alignSelfOverflowAlignment(o.m_alignSelfOverflowAlignment)
     , m_justifyContent(o.m_justifyContent)
     , textOverflow(o.textOverflow)
     , m_textDecorationStyle(o.m_textDecorationStyle)
     , m_wrapFlow(o.m_wrapFlow)
     , m_wrapThrough(o.m_wrapThrough)
@@ skipping 26 matching lines @@
         && m_filter == o.m_filter
         && counterDataEquivalent(o)
         && shadowDataEquivalent(o)
         && animationDataEquivalent(o)
         && transitionDataEquivalent(o)
         && m_clipPath == o.m_clipPath
         && m_textDecorationColor == o.m_textDecorationColor
         && m_order == o.m_order
         && m_objectPosition == o.m_objectPosition
         && m_transformStyle3D == o.m_transformStyle3D
-        && m_backfaceVisibility == o.m_backfaceVisibility
         && m_alignContent == o.m_alignContent
         && m_alignItems == o.m_alignItems
         && m_alignItemsOverflowAlignment == o.m_alignItemsOverflowAlignment
         && m_alignSelf == o.m_alignSelf
         && m_alignSelfOverflowAlignment == o.m_alignSelfOverflowAlignment
         && m_justifyContent == o.m_justifyContent
         && textOverflow == o.textOverflow
         && m_textDecorationStyle == o.m_textDecorationStyle
         && m_wrapFlow == o.m_wrapFlow
         && m_wrapThrough == o.m_wrapThrough
@@ skipping 34 matching lines @@
         return false;
     return m_transitions->transitionsMatchForStyleRecalc(*o.m_transitions);
 }
 
 bool StyleRareNonInheritedData::hasFilters() const
 {
     return m_filter.get() && !m_filter->m_operations.isEmpty();
 }
 
 } // namespace blink