Remove backface visibility

sky/engine/core/rendering/RenderObject.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google 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
@@ skipping 320 matching lines @@
     bool childNeedsOverflowRecalcAfterStyleChange() const { return m_bitfields.childNeedsOverflowRecalcAfterStyleChange(); }
 
     bool isSelectionBorder() const;
 
     bool hasClip() const { return isOutOfFlowPositioned() && !style()->hasAutoClip(); }
     bool hasOverflowClip() const { return m_bitfields.hasOverflowClip(); }
     bool hasClipOrOverflowClip() const { return hasClip() || hasOverflowClip(); }
 
     bool hasTransform() const { return m_bitfields.hasTransform(); }
     bool hasClipPath() const { return style() && style()->clipPath(); }
-    bool hasHiddenBackface() const { return style() && style()->backfaceVisibility() == BackfaceVisibilityHidden; }
 
     inline bool preservesNewline() const;
 
     RenderView* view() const { return document().renderView(); };
     FrameView* frameView() const { return document().view(); };
 
     bool isRooted() const;
 
     // TODO(ojan): Make this a reference now that it can't be null.
     Node* node() const
     {
         return m_node.get();
     }
 
     Document& document() const { return m_node->document(); }
     LocalFrame* frame() const { return document().frame(); }
 
     // Returns the object containing this one. Can be different from parent for positioned elements.
     // If paintInvalidationContainer and paintInvalidationContainerSkipped are not null, on return *paintInvalidationContainerSkipped
     // is true if the renderer returned is an ancestor of paintInvalidationContainer.
     RenderObject* container(const RenderBox* paintInvalidationContainer = 0, bool* paintInvalidationContainerSkipped = 0) const;
 
-    // TODO(esprehn): Remove this.
-    RenderObject* hoverAncestor() const { return parent(); }
-
     Element* offsetParent() const;
 
     void markContainingBlocksForLayout(bool scheduleRelayout = true, RenderObject* newRoot = 0, SubtreeLayoutScope* = 0);
     void setNeedsLayout(MarkingBehavior = MarkContainingBlockChain, SubtreeLayoutScope* = 0);
     void clearNeedsLayout();
     void setChildNeedsLayout(MarkingBehavior = MarkContainingBlockChain, SubtreeLayoutScope* = 0);
     void setNeedsPositionedMovementLayout();
     void setPreferredLogicalWidthsDirty(MarkingBehavior = MarkContainingBlockChain);
     void clearPreferredLogicalWidthsDirty();
     void invalidateContainerPreferredLogicalWidths();
@@ skipping 117 matching lines @@
     };
 
     void getTextDecorations(unsigned decorations, AppliedTextDecoration& underline, AppliedTextDecoration& overline, AppliedTextDecoration& linethrough, bool quirksMode = false, bool firstlineStyle = false);
 
     // Return the RenderBox in the container chain which is responsible for painting this object, or 0
     // if painting is root-relative. This is the container that should be passed to the 'forPaintInvalidation'
     // methods.
     const RenderView* containerForPaintInvalidation() const;
     const RenderBox* adjustCompositedContainerForSpecialAncestors(const RenderBox* paintInvalidationContainer) const;
 
+    // Overriden by RenderText for character length, used in line layout code.
     virtual unsigned length() const { return 1; }
 
     // FIXME(sky): Remove
     bool isFloatingOrOutOfFlowPositioned() const { return isOutOfFlowPositioned(); }
 
     bool isTransparent() const { return style()->hasOpacity(); }
     float opacity() const { return style()->opacity(); }
 
     enum SelectionState {
         SelectionNone, // The object is not selected.
@@ skipping 71 matching lines @@
 
     bool shouldUseTransformFromContainer(const RenderObject* container) const;
     void getTransformFromContainer(const RenderObject* container, const LayoutSize& offsetInContainer, TransformationMatrix&) const;
 
     bool createsGroup() const { return isTransparent() || style()->hasFilter(); }
 
     virtual void addFocusRingRects(Vector<IntRect>&, const LayoutPoint& /* additionalOffset */, const RenderBox* /* paintContainer */ = 0) const { };
 
     RespectImageOrientationEnum shouldRespectImageOrientation() const;
 
-    bool isRelayoutBoundaryForInspector() const;
-
     bool onlyNeededPositionedMovementLayout() const { return m_bitfields.onlyNeededPositionedMovementLayout(); }
     void setOnlyNeededPositionedMovementLayout(bool b) { m_bitfields.setOnlyNeededPositionedMovementLayout(b); }
 
     bool neededLayoutBecauseOfChildren() const { return m_bitfields.neededLayoutBecauseOfChildren(); }
     void setNeededLayoutBecauseOfChildren(bool b) { m_bitfields.setNeededLayoutBecauseOfChildren(b); }
 
     void setNeedsOverflowRecalcAfterStyleChange();
     void markContainingBlocksForOverflowRecalc();
 
 protected:
@@ skipping 255 matching lines @@
 void showTree(const blink::RenderObject*);
 void showLineTree(const blink::RenderObject*);
 void showRenderTree(const blink::RenderObject* object1);
 // We don't make object2 an optional parameter so that showRenderTree
 // can be called from gdb easily.
 void showRenderTree(const blink::RenderObject* object1, const blink::RenderObject* object2);
 
 #endif
 
 #endif  // SKY_ENGINE_CORE_RENDERING_RENDEROBJECT_H_