Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 0 insertions, 1047 deletions

diff --git a/WebCore/rendering/RenderObject.h b/WebCore/rendering/RenderObject.h
deleted file mode 100644
index 9cb4e36..0000000
--- a/WebCore/rendering/RenderObject.h
+++ /dev/null
@@ -1,1047 +0,0 @@
-/*
- * 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 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
- * 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,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- */
-
-#ifndef RenderObject_h
-#define RenderObject_h
-
-#include "AffineTransform.h"
-#include "CachedResourceClient.h"
-#include "CSSPrimitiveValue.h"
-#include "Document.h"
-#include "Element.h"
-#include "FloatQuad.h"
-#include "PaintInfo.h"
-#include "RenderObjectChildList.h"
-#include "RenderStyle.h"
-#include "TextAffinity.h"
-#include "TransformationMatrix.h"
-#include <wtf/UnusedParam.h>
-
-#if PLATFORM(CG) || PLATFORM(CAIRO) || PLATFORM(QT)
-#define HAVE_PATH_BASED_BORDER_RADIUS_DRAWING 1
-#endif
-
-namespace WebCore {
-
-class AnimationController;
-class HitTestResult;
-class InlineBox;
-class InlineFlowBox;
-class OverlapTestRequestClient;
-class Path;
-class Position;
-class RenderBoxModelObject;
-class RenderInline;
-class RenderBlock;
-class RenderFlow;
-class RenderLayer;
-class RenderTheme;
-class TransformState;
-class VisiblePosition;
-#if ENABLE(SVG)
-class RenderSVGResourceContainer;
-#endif
-
-enum HitTestFilter {
-    HitTestAll,
-    HitTestSelf,
-    HitTestDescendants
-};
-
-enum HitTestAction {
-    HitTestBlockBackground,
-    HitTestChildBlockBackground,
-    HitTestChildBlockBackgrounds,
-    HitTestFloat,
-    HitTestForeground
-};
-
-// Sides used when drawing borders and outlines.  This is in RenderObject rather than RenderBoxModelObject since outlines can
-// be drawn by SVG around bounding boxes.
-enum BoxSide {
-    BSTop,
-    BSBottom,
-    BSLeft,
-    BSRight
-};
-
-const int caretWidth = 1;
-
-#if ENABLE(DASHBOARD_SUPPORT)
-struct DashboardRegionValue {
-    bool operator==(const DashboardRegionValue& o) const
-    {
-        return type == o.type && bounds == o.bounds && clip == o.clip && label == o.label;
-    }
-    bool operator!=(const DashboardRegionValue& o) const
-    {
-        return !(*this == o);
-    }
-
-    String label;
-    IntRect bounds;
-    IntRect clip;
-    int type;
-};
-#endif
-
-// Base class for all rendering tree objects.
-class RenderObject : public CachedResourceClient {
-    friend class RenderBlock;
-    friend class RenderBox;
-    friend class RenderLayer;
-    friend class RenderObjectChildList;
-    friend class RenderSVGContainer;
-public:
-    // Anonymous objects should pass the document as their node, and they will then automatically be
-    // marked as anonymous in the constructor.
-    RenderObject(Node*);
-    virtual ~RenderObject();
-
-    RenderTheme* theme() const;
-
-    virtual const char* renderName() const = 0;
-
-    RenderObject* parent() const { return m_parent; }
-    bool isDescendantOf(const RenderObject*) const;
-
-    RenderObject* previousSibling() const { return m_previous; }
-    RenderObject* nextSibling() const { return m_next; }
-
-    RenderObject* firstChild() const
-    {
-        if (const RenderObjectChildList* children = virtualChildren())
-            return children->firstChild();
-        return 0;
-    }
-    RenderObject* lastChild() const
-    {
-        if (const RenderObjectChildList* children = virtualChildren())
-            return children->lastChild();
-        return 0;
-    }
-    virtual RenderObjectChildList* virtualChildren() { return 0; }
-    virtual const RenderObjectChildList* virtualChildren() const { return 0; }
-
-    RenderObject* nextInPreOrder() const;
-    RenderObject* nextInPreOrder(RenderObject* stayWithin) const;
-    RenderObject* nextInPreOrderAfterChildren() const;
-    RenderObject* nextInPreOrderAfterChildren(RenderObject* stayWithin) const;
-    RenderObject* previousInPreOrder() const;
-    RenderObject* childAt(unsigned) const;
-
-    RenderObject* firstLeafChild() const;
-    RenderObject* lastLeafChild() const;
-
-    // The following six functions are used when the render tree hierarchy changes to make sure layers get
-    // properly added and removed.  Since containership can be implemented by any subclass, and since a hierarchy
-    // can contain a mixture of boxes and other object types, these functions need to be in the base class.
-    RenderLayer* enclosingLayer() const;
-    void addLayers(RenderLayer* parentLayer, RenderObject* newObject);
-    void removeLayers(RenderLayer* parentLayer);
-    void moveLayers(RenderLayer* oldParent, RenderLayer* newParent);
-    RenderLayer* findNextLayer(RenderLayer* parentLayer, RenderObject* startPoint, bool checkParent = true);
-
-    // Convenience function for getting to the nearest enclosing box of a RenderObject.
-    RenderBox* enclosingBox() const;
-    RenderBoxModelObject* enclosingBoxModelObject() const;
-
-    virtual bool isEmpty() const { return firstChild() == 0; }
-
-#ifndef NDEBUG
-    void setHasAXObject(bool flag) { m_hasAXObject = flag; }
-    bool hasAXObject() const { return m_hasAXObject; }
-    bool isSetNeedsLayoutForbidden() const { return m_setNeedsLayoutForbidden; }
-    void setNeedsLayoutIsForbidden(bool flag) { m_setNeedsLayoutForbidden = flag; }
-#endif
-
-    // Obtains the nearest enclosing block (including this block) that contributes a first-line style to our inline
-    // children.
-    virtual RenderBlock* firstLineBlock() const;
-
-    // Called when an object that was floating or positioned becomes a normal flow object
-    // again.  We have to make sure the render tree updates as needed to accommodate the new
-    // normal flow object.
-    void handleDynamicFloatPositionChange();
-    
-    // RenderObject tree manipulation
-    //////////////////////////////////////////
-    virtual bool canHaveChildren() const { return virtualChildren(); }
-    virtual bool isChildAllowed(RenderObject*, RenderStyle*) const { return true; }
-    virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0);
-    virtual void addChildIgnoringContinuation(RenderObject* newChild, RenderObject* beforeChild = 0) { return addChild(newChild, beforeChild); }
-    virtual void removeChild(RenderObject*);
-    virtual bool createsAnonymousWrapper() const { return false; }
-    //////////////////////////////////////////
-
-protected:
-    //////////////////////////////////////////
-    // Helper functions. Dangerous to use!
-    void setPreviousSibling(RenderObject* previous) { m_previous = previous; }
-    void setNextSibling(RenderObject* next) { m_next = next; }
-    void setParent(RenderObject* parent) { m_parent = parent; }
-    //////////////////////////////////////////
-private:
-    void addAbsoluteRectForLayer(IntRect& result);
-    void setLayerNeedsFullRepaint();
-
-public:
-#ifndef NDEBUG
-    void showTreeForThis() const;
-
-    void showRenderObject() const;
-    // We don't make printedCharacters an optional parameter so that
-    // showRenderObject can be called from gdb easily.
-    void showRenderObject(int printedCharacters) const;
-    void showRenderTreeAndMark(const RenderObject* markedObject1 = 0, const char* markedLabel1 = 0, const RenderObject* markedObject2 = 0, const char* markedLabel2 = 0, int depth = 0) const;
-#endif
-
-    static RenderObject* createObject(Node*, RenderStyle*);
-
-    // Overloaded new operator.  Derived classes must override operator new
-    // in order to allocate out of the RenderArena.
-    void* operator new(size_t, RenderArena*) throw();
-
-    // Overridden to prevent the normal delete from being called.
-    void operator delete(void*, size_t);
-
-private:
-    // The normal operator new is disallowed on all render objects.
-    void* operator new(size_t) throw();
-
-public:
-    RenderArena* renderArena() const { return document()->renderArena(); }
-
-    virtual bool isApplet() const { return false; }
-    virtual bool isBR() const { return false; }
-    virtual bool isBlockFlow() const { return false; }
-    virtual bool isBoxModelObject() const { return false; }
-    virtual bool isCounter() const { return false; }
-    virtual bool isDetails() const { return false; }
-    virtual bool isDetailsMarker() const { return false; }
-    virtual bool isEmbeddedObject() const { return false; }
-    virtual bool isFieldset() const { return false; }
-    virtual bool isFileUploadControl() const { return false; }
-    virtual bool isFrame() const { return false; }
-    virtual bool isFrameSet() const { return false; }
-    virtual bool isImage() const { return false; }
-    virtual bool isInlineBlockOrInlineTable() const { return false; }
-    virtual bool isListBox() const { return false; }
-    virtual bool isListItem() const { return false; }
-    virtual bool isListMarker() const { return false; }
-    virtual bool isMedia() const { return false; }
-    virtual bool isMenuList() const { return false; }
-#if ENABLE(METER_TAG)
-    virtual bool isMeter() const { return false; }
-#endif
-#if ENABLE(PROGRESS_TAG)
-    virtual bool isProgress() const { return false; }
-#endif
-    virtual bool isRenderBlock() const { return false; }
-    virtual bool isRenderButton() const { return false; }
-    virtual bool isRenderIFrame() const { return false; }
-    virtual bool isRenderImage() const { return false; }
-    virtual bool isRenderInline() const { return false; }
-    virtual bool isRenderPart() const { return false; }
-    virtual bool isRenderView() const { return false; }
-    virtual bool isReplica() const { return false; }
-
-    virtual bool isRuby() const { return false; }
-    virtual bool isRubyBase() const { return false; }
-    virtual bool isRubyRun() const { return false; }
-    virtual bool isRubyText() const { return false; }
-
-    virtual bool isSlider() const { return false; }
-    virtual bool isSummary() const { return false; }
-    virtual bool isTable() const { return false; }
-    virtual bool isTableCell() const { return false; }
-    virtual bool isTableCol() const { return false; }
-    virtual bool isTableRow() const { return false; }
-    virtual bool isTableSection() const { return false; }
-    virtual bool isTextControl() const { return false; }
-    virtual bool isTextArea() const { return false; }
-    virtual bool isTextField() const { return false; }
-    virtual bool isVideo() const { return false; }
-    virtual bool isWidget() const { return false; }
-    virtual bool isCanvas() const { return false; }
-
-    bool isRoot() const { return document()->documentElement() == m_node; }
-    bool isBody() const;
-    bool isHR() const;
-    bool isLegend() const;
-
-    bool isHTMLMarquee() const;
-
-    inline bool isBeforeContent() const;
-    inline bool isAfterContent() const;
-    static inline bool isBeforeContent(const RenderObject* obj) { return obj && obj->isBeforeContent(); }
-    static inline bool isAfterContent(const RenderObject* obj) { return obj && obj->isAfterContent(); }
-
-    bool childrenInline() const { return m_childrenInline; }
-    void setChildrenInline(bool b = true) { m_childrenInline = b; }
-    bool hasColumns() const { return m_hasColumns; }
-    void setHasColumns(bool b = true) { m_hasColumns = b; }
-    bool cellWidthChanged() const { return m_cellWidthChanged; }
-    void setCellWidthChanged(bool b = true) { m_cellWidthChanged = b; }
-
-    virtual bool requiresForcedStyleRecalcPropagation() const { return false; }
-
-#if ENABLE(MATHML)
-    virtual bool isRenderMathMLBlock() const { return false; }
-#endif // ENABLE(MATHML)
-
-#if ENABLE(SVG)
-    // FIXME: Until all SVG renders can be subclasses of RenderSVGModelObject we have
-    // to add SVG renderer methods to RenderObject with an ASSERT_NOT_REACHED() default implementation.
-    virtual bool isSVGRoot() const { return false; }
-    virtual bool isSVGContainer() const { return false; }
-    virtual bool isSVGViewportContainer() const { return false; } 
-    virtual bool isSVGGradientStop() const { return false; }
-    virtual bool isSVGHiddenContainer() const { return false; }
-    virtual bool isSVGPath() const { return false; }
-    virtual bool isSVGText() const { return false; }
-    virtual bool isSVGTextPath() const { return false; }
-    virtual bool isSVGInline() const { return false; }
-    virtual bool isSVGInlineText() const { return false; }
-    virtual bool isSVGImage() const { return false; }
-    virtual bool isSVGForeignObject() const { return false; }
-    virtual bool isSVGResourceContainer() const { return false; }
-    virtual bool isSVGResourceFilterPrimitive() const { return false; }
-    virtual bool isSVGShadowTreeRootContainer() const { return false; }
-
-    virtual RenderSVGResourceContainer* toRenderSVGResourceContainer();
-
-    // FIXME: Those belong into a SVG specific base-class for all renderers (see above)
-    // Unfortunately we don't have such a class yet, because it's not possible for all renderers
-    // to inherit from RenderSVGObject -> RenderObject (some need RenderBlock inheritance for instance)
-    virtual void setNeedsTransformUpdate() { }
-    virtual void setNeedsBoundariesUpdate();
-
-    // Per SVG 1.1 objectBoundingBox ignores clipping, masking, filter effects, opacity and stroke-width.
-    // This is used for all computation of objectBoundingBox relative units and by SVGLocateable::getBBox().
-    // NOTE: Markers are not specifically ignored here by SVG 1.1 spec, but we ignore them
-    // since stroke-width is ignored (and marker size can depend on stroke-width).
-    // objectBoundingBox is returned local coordinates.
-    // The name objectBoundingBox is taken from the SVG 1.1 spec.
-    virtual FloatRect objectBoundingBox() const;
-    virtual FloatRect strokeBoundingBox() const;
-
-    // Returns the smallest rectangle enclosing all of the painted content
-    // respecting clipping, masking, filters, opacity, stroke-width and markers
-    virtual FloatRect repaintRectInLocalCoordinates() const;
-
-    // This only returns the transform="" value from the element
-    // most callsites want localToParentTransform() instead.
-    virtual AffineTransform localTransform() const;
-
-    // Returns the full transform mapping from local coordinates to local coords for the parent SVG renderer
-    // This includes any viewport transforms and x/y offsets as well as the transform="" value off the element.
-    virtual const AffineTransform& localToParentTransform() const;
-
-    // SVG uses FloatPoint precise hit testing, and passes the point in parent
-    // coordinates instead of in repaint container coordinates.  Eventually the
-    // rest of the rendering tree will move to a similar model.
-    virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction);
-#endif
-
-    bool isAnonymous() const { return m_isAnonymous; }
-    void setIsAnonymous(bool b) { m_isAnonymous = b; }
-    bool isAnonymousBlock() const
-    {
-        return m_isAnonymous && style()->display() == BLOCK && style()->styleType() == NOPSEUDO && !isListMarker();
-    }
-    bool isAnonymousColumnsBlock() const { return style()->specifiesColumns() && isAnonymousBlock(); }
-    bool isAnonymousColumnSpanBlock() const { return style()->columnSpan() && isAnonymousBlock(); }
-    bool isElementContinuation() const { return node() && node()->renderer() != this; }
-    bool isInlineElementContinuation() const { return isElementContinuation() && isInline(); }
-    bool isBlockElementContinuation() const { return isElementContinuation() && !isInline(); }
-    virtual RenderBoxModelObject* virtualContinuation() const { return 0; }
-
-    bool isFloating() const { return m_floating; }
-    bool isPositioned() const { return m_positioned; } // absolute or fixed positioning
-    bool isRelPositioned() const { return m_relPositioned; } // relative positioning
-    bool isText() const  { return m_isText; }
-    bool isBox() const { return m_isBox; }
-    bool isInline() const { return m_inline; }  // inline object
-    bool isRunIn() const { return style()->display() == RUN_IN; } // run-in object
-    bool isDragging() const { return m_isDragging; }
-    bool isReplaced() const { return m_replaced; } // a "replaced" element (see CSS)
-    
-    bool hasLayer() const { return m_hasLayer; }
-    
-    bool hasBoxDecorations() const { return m_paintBackground; }
-    bool mustRepaintBackgroundOrBorder() const;
-    bool hasBackground() const { return style()->hasBackground(); }
-    bool needsLayout() const { return m_needsLayout || m_normalChildNeedsLayout || m_posChildNeedsLayout || m_needsPositionedMovementLayout; }
-    bool selfNeedsLayout() const { return m_needsLayout; }
-    bool needsPositionedMovementLayout() const { return m_needsPositionedMovementLayout; }
-    bool needsPositionedMovementLayoutOnly() const { return m_needsPositionedMovementLayout && !m_needsLayout && !m_normalChildNeedsLayout && !m_posChildNeedsLayout; }
-    bool posChildNeedsLayout() const { return m_posChildNeedsLayout; }
-    bool normalChildNeedsLayout() const { return m_normalChildNeedsLayout; }
-    
-    bool preferredLogicalWidthsDirty() const { return m_preferredLogicalWidthsDirty; }
-
-    bool isSelectionBorder() const;
-
-    bool hasClip() const { return isPositioned() && style()->hasClip(); }
-    bool hasOverflowClip() const { return m_hasOverflowClip; }
-
-    bool hasTransform() const { return m_hasTransform; }
-    bool hasMask() const { return style() && style()->hasMask(); }
-
-    void drawLineForBoxSide(GraphicsContext*, int x1, int y1, int x2, int y2, BoxSide,
-                            Color, EBorderStyle, int adjbw1, int adjbw2);
-#if HAVE(PATH_BASED_BORDER_RADIUS_DRAWING)
-    void drawBoxSideFromPath(GraphicsContext*, IntRect, Path, 
-                            float thickness, float drawThickness, BoxSide, const RenderStyle*, 
-                            Color, EBorderStyle);
-#else
-    // FIXME: This function should be removed when all ports implement GraphicsContext::clipConvexPolygon()!!
-    // At that time, everyone can use RenderObject::drawBoxSideFromPath() instead. This should happen soon.
-    void drawArcForBoxSide(GraphicsContext*, int x, int y, float thickness, IntSize radius, int angleStart,
-                           int angleSpan, BoxSide, Color, EBorderStyle, bool firstCorner);
-#endif
-
-    IntRect borderInnerRect(const IntRect&, unsigned short topWidth, unsigned short bottomWidth,
-                            unsigned short leftWidth, unsigned short rightWidth) const;
-
-    // The pseudo element style can be cached or uncached.  Use the cached method if the pseudo element doesn't respect
-    // any pseudo classes (and therefore has no concept of changing state).
-    RenderStyle* getCachedPseudoStyle(PseudoId, RenderStyle* parentStyle = 0) const;
-    PassRefPtr<RenderStyle> getUncachedPseudoStyle(PseudoId, RenderStyle* parentStyle = 0, RenderStyle* ownStyle = 0) const;
-    
-    virtual void updateDragState(bool dragOn);
-
-    RenderView* view() const;
-
-    // Returns true if this renderer is rooted, and optionally returns the hosting view (the root of the hierarchy).
-    bool isRooted(RenderView** = 0);
-
-    Node* node() const { return m_isAnonymous ? 0 : m_node; }
-    void setNode(Node* node) { m_node = node; }
-
-    Document* document() const { return m_node->document(); }
-    Frame* frame() const { return document()->frame(); }
-
-    bool hasOutlineAnnotation() const;
-    bool hasOutline() const { return style()->hasOutline() || hasOutlineAnnotation(); }
-
-    // Returns the object containing this one. Can be different from parent for positioned elements.
-    // If repaintContainer and repaintContainerSkipped are not null, on return *repaintContainerSkipped
-    // is true if the renderer returned is an ancestor of repaintContainer.
-    RenderObject* container(RenderBoxModelObject* repaintContainer = 0, bool* repaintContainerSkipped = 0) const;
-
-    virtual RenderObject* hoverAncestor() const { return parent(); }
-
-    // IE Extension that can be called on any RenderObject.  See the implementation for the details.
-    RenderBoxModelObject* offsetParent() const;
-
-    void markContainingBlocksForLayout(bool scheduleRelayout = true, RenderObject* newRoot = 0);
-    void setNeedsLayout(bool b, bool markParents = true);
-    void setChildNeedsLayout(bool b, bool markParents = true);
-    void setNeedsPositionedMovementLayout();
-    void setPreferredLogicalWidthsDirty(bool, bool markParents = true);
-    void invalidateContainerPreferredLogicalWidths();
-    
-    void setNeedsLayoutAndPrefWidthsRecalc()
-    {
-        setNeedsLayout(true);
-        setPreferredLogicalWidthsDirty(true);
-    }
-
-    void setPositioned(bool b = true)  { m_positioned = b;  }
-    void setRelPositioned(bool b = true) { m_relPositioned = b; }
-    void setFloating(bool b = true) { m_floating = b; }
-    void setInline(bool b = true) { m_inline = b; }
-    void setHasBoxDecorations(bool b = true) { m_paintBackground = b; }
-    void setIsText() { m_isText = true; }
-    void setIsBox() { m_isBox = true; }
-    void setReplaced(bool b = true) { m_replaced = b; }
-    void setHasOverflowClip(bool b = true) { m_hasOverflowClip = b; }
-    void setHasLayer(bool b = true) { m_hasLayer = b; }
-    void setHasTransform(bool b = true) { m_hasTransform = b; }
-    void setHasReflection(bool b = true) { m_hasReflection = b; }
-
-    void scheduleRelayout();
-
-    void updateFillImages(const FillLayer*, const FillLayer*);
-    void updateImage(StyleImage*, StyleImage*);
-
-    virtual void paint(PaintInfo&, int tx, int ty);
-
-    // Recursive function that computes the size and position of this object and all its descendants.
-    virtual void layout();
-
-    /* This function performs a layout only if one is needed. */
-    void layoutIfNeeded() { if (needsLayout()) layout(); }
-    
-    // used for element state updates that cannot be fixed with a
-    // repaint and do not need a relayout
-    virtual void updateFromElement() { }
-
-#if ENABLE(DASHBOARD_SUPPORT)
-    virtual void addDashboardRegions(Vector<DashboardRegionValue>&);
-    void collectDashboardRegions(Vector<DashboardRegionValue>&);
-#endif
-
-    bool hitTest(const HitTestRequest&, HitTestResult&, const IntPoint&, int tx, int ty, HitTestFilter = HitTestAll);
-    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
-    virtual void updateHitTestResult(HitTestResult&, const IntPoint&);
-
-    VisiblePosition positionForCoordinates(int x, int y);
-    virtual VisiblePosition positionForPoint(const IntPoint&);
-    VisiblePosition createVisiblePosition(int offset, EAffinity);
-    VisiblePosition createVisiblePosition(const Position&);
-
-    virtual void dirtyLinesFromChangedChild(RenderObject*);
-
-    // Called to update a style that is allowed to trigger animations.
-    // FIXME: Right now this will typically be called only when updating happens from the DOM on explicit elements.
-    // We don't yet handle generated content animation such as first-letter or before/after (we'll worry about this later).
-    void setAnimatableStyle(PassRefPtr<RenderStyle>);
-
-    // Set the style of the object and update the state of the object accordingly.
-    virtual void setStyle(PassRefPtr<RenderStyle>);
-
-    // Updates only the local style ptr of the object.  Does not update the state of the object,
-    // and so only should be called when the style is known not to have changed (or from setStyle).
-    void setStyleInternal(PassRefPtr<RenderStyle>);
-
-    // returns the containing block level element for this element.
-    RenderBlock* containingBlock() const;
-
-    // Convert the given local point to absolute coordinates
-    // FIXME: Temporary. If useTransforms is true, take transforms into account. Eventually localToAbsolute() will always be transform-aware.
-    FloatPoint localToAbsolute(FloatPoint localPoint = FloatPoint(), bool fixed = false, bool useTransforms = false) const;
-    FloatPoint absoluteToLocal(FloatPoint, bool fixed = false, bool useTransforms = false) const;
-
-    // Convert a local quad to absolute coordinates, taking transforms into account.
-    FloatQuad localToAbsoluteQuad(const FloatQuad& quad, bool fixed = false) const
-    {
-        return localToContainerQuad(quad, 0, fixed);
-    }
-    // Convert a local quad into the coordinate system of container, taking transforms into account.
-    FloatQuad localToContainerQuad(const FloatQuad&, RenderBoxModelObject* repaintContainer, bool fixed = false) const;
-
-    // Return the offset from the container() renderer (excluding transforms). In multi-column layout,
-    // different offsets apply at different points, so return the offset that applies to the given point.
-    virtual IntSize offsetFromContainer(RenderObject*, const IntPoint&) const;
-    // Return the offset from an object up the container() chain. Asserts that none of the intermediate objects have transforms.
-    IntSize offsetFromAncestorContainer(RenderObject*) const;
-    
-    virtual void absoluteRects(Vector<IntRect>&, int, int) { }
-    // FIXME: useTransforms should go away eventually
-    IntRect absoluteBoundingBoxRect(bool useTransforms = false);
-
-    // Build an array of quads in absolute coords for line boxes
-    virtual void absoluteQuads(Vector<FloatQuad>&) { }
-
-    void absoluteFocusRingQuads(Vector<FloatQuad>&);
-
-    // the rect that will be painted if this object is passed as the paintingRoot
-    IntRect paintingRootRect(IntRect& topLevelRect);
-
-    virtual int minPreferredLogicalWidth() const { return 0; }
-    virtual int maxPreferredLogicalWidth() const { return 0; }
-
-    RenderStyle* style() const { return m_style.get(); }
-    RenderStyle* firstLineStyle() const { return document()->usesFirstLineRules() ? firstLineStyleSlowCase() : style(); }
-    RenderStyle* style(bool firstLine) const { return firstLine ? firstLineStyle() : style(); }
-
-    // Used only by Element::pseudoStyleCacheIsInvalid to get a first line style based off of a
-    // given new style, without accessing the cache.
-    PassRefPtr<RenderStyle> uncachedFirstLineStyle(RenderStyle*) const;
-
-    // Anonymous blocks that are part of of a continuation chain will return their inline continuation's outline style instead.
-    // This is typically only relevant when repainting.
-    virtual RenderStyle* outlineStyleForRepaint() const { return style(); }
-    
-    void getTextDecorationColors(int decorations, Color& underline, Color& overline,
-                                 Color& linethrough, bool quirksMode = 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 'forRepaint'
-    // methods.
-    RenderBoxModelObject* containerForRepaint() const;
-    // Actually do the repaint of rect r for this object which has been computed in the coordinate space
-    // of repaintContainer. If repaintContainer is 0, repaint via the view.
-    void repaintUsingContainer(RenderBoxModelObject* repaintContainer, const IntRect& r, bool immediate = false);
-    
-    // Repaint the entire object.  Called when, e.g., the color of a border changes, or when a border
-    // style changes.
-    void repaint(bool immediate = false);
-
-    // Repaint a specific subrectangle within a given object.  The rect |r| is in the object's coordinate space.
-    void repaintRectangle(const IntRect&, bool immediate = false);
-
-    // Repaint only if our old bounds and new bounds are different. The caller may pass in newBounds and newOutlineBox if they are known.
-    bool repaintAfterLayoutIfNeeded(RenderBoxModelObject* repaintContainer, const IntRect& oldBounds, const IntRect& oldOutlineBox, const IntRect* newBoundsPtr = 0, const IntRect* newOutlineBoxPtr = 0);
-
-    // Repaint only if the object moved.
-    virtual void repaintDuringLayoutIfMoved(const IntRect& rect);
-
-    // Called to repaint a block's floats.
-    virtual void repaintOverhangingFloats(bool paintAllDescendants = false);
-
-    bool checkForRepaintDuringLayout() const;
-
-    // Returns the rect that should be repainted whenever this object changes.  The rect is in the view's
-    // coordinate space.  This method deals with outlines and overflow.
-    IntRect absoluteClippedOverflowRect()
-    {
-        return clippedOverflowRectForRepaint(0);
-    }
-    virtual IntRect clippedOverflowRectForRepaint(RenderBoxModelObject* repaintContainer);    
-    virtual IntRect rectWithOutlineForRepaint(RenderBoxModelObject* repaintContainer, int outlineWidth);
-
-    // Given a rect in the object's coordinate space, compute a rect suitable for repainting
-    // that rect in view coordinates.
-    void computeAbsoluteRepaintRect(IntRect& r, bool fixed = false)
-    {
-        return computeRectForRepaint(0, r, fixed);
-    }
-    // Given a rect in the object's coordinate space, compute a rect suitable for repainting
-    // that rect in the coordinate space of repaintContainer.
-    virtual void computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect&, bool fixed = false);
-
-    // If multiple-column layout results in applying an offset to the given point, add the same
-    // offset to the given size.
-    virtual void adjustForColumns(IntSize&, const IntPoint&) const { }
-
-    virtual unsigned int length() const { return 1; }
-
-    bool isFloatingOrPositioned() const { return (isFloating() || isPositioned()); }
-
-    bool isTransparent() const { return style()->opacity() < 1.0f; }
-    float opacity() const { return style()->opacity(); }
-
-    bool hasReflection() const { return m_hasReflection; }
-
-    // Applied as a "slop" to dirty rect checks during the outline painting phase's dirty-rect checks.
-    int maximalOutlineSize(PaintPhase) const;
-
-    void setHasMarkupTruncation(bool b = true) { m_hasMarkupTruncation = b; }
-    bool hasMarkupTruncation() const { return m_hasMarkupTruncation; }
-
-    enum SelectionState {
-        SelectionNone, // The object is not selected.
-        SelectionStart, // The object either contains the start of a selection run or is the start of a run
-        SelectionInside, // The object is fully encompassed by a selection run
-        SelectionEnd, // The object either contains the end of a selection run or is the end of a run
-        SelectionBoth // The object contains an entire run or is the sole selected object in that run
-    };
-
-    // The current selection state for an object.  For blocks, the state refers to the state of the leaf
-    // descendants (as described above in the SelectionState enum declaration).
-    SelectionState selectionState() const { return static_cast<SelectionState>(m_selectionState);; }
-
-    // Sets the selection state for an object.
-    virtual void setSelectionState(SelectionState state) { m_selectionState = state; }
-
-    // A single rectangle that encompasses all of the selected objects within this object.  Used to determine the tightest
-    // possible bounding box for the selection.
-    IntRect selectionRect(bool clipToVisibleContent = true) { return selectionRectForRepaint(0, clipToVisibleContent); }
-    virtual IntRect selectionRectForRepaint(RenderBoxModelObject* /*repaintContainer*/, bool /*clipToVisibleContent*/ = true) { return IntRect(); }
-
-    // Whether or not an object can be part of the leaf elements of the selection.
-    virtual bool canBeSelectionLeaf() const { return false; }
-
-    // Whether or not a block has selected children.
-    bool hasSelectedChildren() const { return m_selectionState != SelectionNone; }
-
-    // Obtains the selection colors that should be used when painting a selection.
-    Color selectionBackgroundColor() const;
-    Color selectionForegroundColor() const;
-    Color selectionEmphasisMarkColor() const;
-
-    // Whether or not a given block needs to paint selection gaps.
-    virtual bool shouldPaintSelectionGaps() const { return false; }
-
-#if ENABLE(DRAG_SUPPORT)
-    Node* draggableNode(bool dhtmlOK, bool uaOK, int x, int y, bool& dhtmlWillDrag) const;
-#endif
-
-    /**
-     * Returns the local coordinates of the caret within this render object.
-     * @param caretOffset zero-based offset determining position within the render object.
-     * @param extraWidthToEndOfLine optional out arg to give extra width to end of line -
-     * useful for character range rect computations
-     */
-    virtual IntRect localCaretRect(InlineBox*, int caretOffset, int* extraWidthToEndOfLine = 0);
-
-    bool isMarginBeforeQuirk() const { return m_marginBeforeQuirk; }
-    bool isMarginAfterQuirk() const { return m_marginAfterQuirk; }
-    void setMarginBeforeQuirk(bool b = true) { m_marginBeforeQuirk = b; }
-    void setMarginAfterQuirk(bool b = true) { m_marginAfterQuirk = b; }
-
-    // When performing a global document tear-down, the renderer of the document is cleared.  We use this
-    // as a hook to detect the case of document destruction and don't waste time doing unnecessary work.
-    bool documentBeingDestroyed() const;
-
-    virtual void destroy();
-
-    // Virtual function helpers for CSS3 Flexible Box Layout
-    virtual bool isFlexibleBox() const { return false; }
-    virtual bool isFlexingChildren() const { return false; }
-    virtual bool isStretchingChildren() const { return false; }
-
-    virtual int caretMinOffset() const;
-    virtual int caretMaxOffset() const;
-    virtual unsigned caretMaxRenderedOffset() const;
-
-    virtual int previousOffset(int current) const;
-    virtual int previousOffsetForBackwardDeletion(int current) const;
-    virtual int nextOffset(int current) const;
-
-    virtual void imageChanged(CachedImage*, const IntRect* = 0);
-    virtual void imageChanged(WrappedImagePtr, const IntRect* = 0) { }
-    virtual bool willRenderImage(CachedImage*);
-
-    void selectionStartEnd(int& spos, int& epos) const;
-
-    bool hasOverrideSize() const { return m_hasOverrideSize; }
-    void setHasOverrideSize(bool b) { m_hasOverrideSize = b; }
-    
-    void remove() { if (parent()) parent()->removeChild(this); }
-
-    AnimationController* animation() const;
-
-    bool visibleToHitTesting() const { return style()->visibility() == VISIBLE && style()->pointerEvents() != PE_NONE; }
-
-    // Map points and quads through elements, potentially via 3d transforms. You should never need to call these directly; use
-    // localToAbsolute/absoluteToLocal methods instead.
-    virtual void mapLocalToContainer(RenderBoxModelObject* repaintContainer, bool useTransforms, bool fixed, TransformState&) const;
-    virtual void mapAbsoluteToLocalPoint(bool fixed, bool useTransforms, TransformState&) const;
-
-    bool shouldUseTransformFromContainer(const RenderObject* container) const;
-    void getTransformFromContainer(const RenderObject* container, const IntSize& offsetInContainer, TransformationMatrix&) const;
-    
-    virtual void addFocusRingRects(Vector<IntRect>&, int /*tx*/, int /*ty*/) { };
-
-    IntRect absoluteOutlineBounds() const
-    {
-        return outlineBoundsForRepaint(0);
-    }
-
-protected:
-    // Overrides should call the superclass at the end
-    virtual void styleWillChange(StyleDifference, const RenderStyle* newStyle);
-    // Overrides should call the superclass at the start
-    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
-
-    void paintFocusRing(GraphicsContext*, int tx, int ty, RenderStyle*);
-    void paintOutline(GraphicsContext*, int tx, int ty, int w, int h);
-    void addPDFURLRect(GraphicsContext*, const IntRect&);
-
-    virtual IntRect viewRect() const;
-
-    void adjustRectForOutlineAndShadow(IntRect&) const;
-
-    void arenaDelete(RenderArena*, void* objectBase);
-
-    virtual IntRect outlineBoundsForRepaint(RenderBoxModelObject* /*repaintContainer*/, IntPoint* /*cachedOffsetToRepaintContainer*/ = 0) const { return IntRect(); }
-
-    class LayoutRepainter {
-    public:
-        LayoutRepainter(RenderObject& object, bool checkForRepaint, const IntRect* oldBounds = 0)
-            : m_object(object)
-            , m_repaintContainer(0)
-            , m_checkForRepaint(checkForRepaint)
-        {
-            if (m_checkForRepaint) {
-                m_repaintContainer = m_object.containerForRepaint();
-                m_oldBounds = oldBounds ? *oldBounds : m_object.clippedOverflowRectForRepaint(m_repaintContainer);
-                m_oldOutlineBox = m_object.outlineBoundsForRepaint(m_repaintContainer);
-            }
-        }
-        
-        // Return true if it repainted.
-        bool repaintAfterLayout()
-        {
-            return m_checkForRepaint ? m_object.repaintAfterLayoutIfNeeded(m_repaintContainer, m_oldBounds, m_oldOutlineBox) : false;
-        }
-        
-        bool checkForRepaint() const { return m_checkForRepaint; }
-        
-    private:
-        RenderObject& m_object;
-        RenderBoxModelObject* m_repaintContainer;
-        IntRect m_oldBounds;
-        IntRect m_oldOutlineBox;
-        bool m_checkForRepaint;
-    };
-    
-private:
-    RenderStyle* firstLineStyleSlowCase() const;
-    StyleDifference adjustStyleDifference(StyleDifference, unsigned contextSensitiveProperties) const;
-
-    Color selectionColor(int colorProperty) const;
-    
-    RefPtr<RenderStyle> m_style;
-
-    Node* m_node;
-
-    RenderObject* m_parent;
-    RenderObject* m_previous;
-    RenderObject* m_next;
-
-#ifndef NDEBUG
-    bool m_hasAXObject;
-    bool m_setNeedsLayoutForbidden : 1;
-#endif
-
-    // 32 bits have been used here. THERE ARE NO FREE BITS AVAILABLE.
-    bool m_needsLayout               : 1;
-    bool m_needsPositionedMovementLayout :1;
-    bool m_normalChildNeedsLayout    : 1;
-    bool m_posChildNeedsLayout       : 1;
-    bool m_preferredLogicalWidthsDirty           : 1;
-    bool m_floating                  : 1;
-
-    bool m_positioned                : 1;
-    bool m_relPositioned             : 1;
-    bool m_paintBackground           : 1; // if the box has something to paint in the
-                                          // background painting phase (background, border, etc)
-
-    bool m_isAnonymous               : 1;
-    bool m_isText                    : 1;
-    bool m_isBox                     : 1;
-    bool m_inline                    : 1;
-    bool m_replaced                  : 1;
-    bool m_isDragging                : 1;
-
-    bool m_hasLayer                  : 1;
-    bool m_hasOverflowClip           : 1; // Set in the case of overflow:auto/scroll/hidden
-    bool m_hasTransform              : 1;
-    bool m_hasReflection             : 1;
-
-    bool m_hasOverrideSize           : 1;
-    
-public:
-    bool m_hasCounterNodeMap         : 1;
-    bool m_everHadLayout             : 1;
-
-private:
-    // These bitfields are moved here from subclasses to pack them together
-    // from RenderBlock
-    bool m_childrenInline : 1;
-    bool m_marginBeforeQuirk : 1;
-    bool m_marginAfterQuirk : 1;
-    bool m_hasMarkupTruncation : 1;
-    unsigned m_selectionState : 3; // SelectionState
-    bool m_hasColumns : 1;
-    
-    // from RenderTableCell
-    bool m_cellWidthChanged : 1;
-
-private:
-    // Store state between styleWillChange and styleDidChange
-    static bool s_affectsParentBlock;
-};
-
-inline bool RenderObject::documentBeingDestroyed() const
-{
-    return !document()->renderer();
-}
-
-inline bool RenderObject::isBeforeContent() const
-{
-    if (style()->styleType() != BEFORE)
-        return false;
-    // Text nodes don't have their own styles, so ignore the style on a text node.
-    if (isText() && !isBR())
-        return false;
-    return true;
-}
-
-inline bool RenderObject::isAfterContent() const
-{
-    if (style()->styleType() != AFTER)
-        return false;
-    // Text nodes don't have their own styles, so ignore the style on a text node.
-    if (isText() && !isBR())
-        return false;
-    return true;
-}
-
-inline void RenderObject::setNeedsLayout(bool b, bool markParents)
-{
-    bool alreadyNeededLayout = m_needsLayout;
-    m_needsLayout = b;
-    if (b) {
-        ASSERT(!isSetNeedsLayoutForbidden());
-        if (!alreadyNeededLayout) {
-            if (markParents)
-                markContainingBlocksForLayout();
-            if (hasLayer())
-                setLayerNeedsFullRepaint();
-        }
-    } else {
-        m_everHadLayout = true;
-        m_posChildNeedsLayout = false;
-        m_normalChildNeedsLayout = false;
-        m_needsPositionedMovementLayout = false;
-    }
-}
-
-inline void RenderObject::setChildNeedsLayout(bool b, bool markParents)
-{
-    bool alreadyNeededLayout = m_normalChildNeedsLayout;
-    m_normalChildNeedsLayout = b;
-    if (b) {
-        ASSERT(!isSetNeedsLayoutForbidden());
-        if (!alreadyNeededLayout && markParents)
-            markContainingBlocksForLayout();
-    } else {
-        m_posChildNeedsLayout = false;
-        m_normalChildNeedsLayout = false;
-        m_needsPositionedMovementLayout = false;
-    }
-}
-
-inline void RenderObject::setNeedsPositionedMovementLayout()
-{
-    bool alreadyNeededLayout = needsLayout();
-    m_needsPositionedMovementLayout = true;
-    if (!alreadyNeededLayout) {
-        markContainingBlocksForLayout();
-        if (hasLayer())
-            setLayerNeedsFullRepaint();
-    }
-}
-
-inline bool objectIsRelayoutBoundary(const RenderObject *obj) 
-{
-    // FIXME: In future it may be possible to broaden this condition in order to improve performance.
-    // Table cells are excluded because even when their CSS height is fixed, their height()
-    // may depend on their contents.
-    return obj->isTextControl()
-        || (obj->hasOverflowClip() && !obj->style()->width().isIntrinsicOrAuto() && !obj->style()->height().isIntrinsicOrAuto() && !obj->style()->height().isPercent() && !obj->isTableCell())
-#if ENABLE(SVG)
-           || obj->isSVGRoot()
-#endif
-           ;
-}
-
-inline void RenderObject::markContainingBlocksForLayout(bool scheduleRelayout, RenderObject* newRoot)
-{
-    ASSERT(!scheduleRelayout || !newRoot);
-
-    RenderObject* o = container();
-    RenderObject* last = this;
-
-    while (o) {
-        // Don't mark the outermost object of an unrooted subtree. That object will be 
-        // marked when the subtree is added to the document.
-        RenderObject* container = o->container();
-        if (!container && !o->isRenderView())
-            return;
-        if (!last->isText() && (last->style()->position() == FixedPosition || last->style()->position() == AbsolutePosition)) {
-            if ((last->style()->top().isAuto() && last->style()->bottom().isAuto()) || last->style()->top().isStatic()) {
-                RenderObject* parent = last->parent();
-                if (!parent->normalChildNeedsLayout()) {
-                    parent->setChildNeedsLayout(true, false);
-                    if (parent != newRoot)
-                        parent->markContainingBlocksForLayout(scheduleRelayout, newRoot);
-                }
-            }
-            if (o->m_posChildNeedsLayout)
-                return;
-            o->m_posChildNeedsLayout = true;
-            ASSERT(!o->isSetNeedsLayoutForbidden());
-        } else {
-            if (o->m_normalChildNeedsLayout)
-                return;
-            o->m_normalChildNeedsLayout = true;
-            ASSERT(!o->isSetNeedsLayoutForbidden());
-        }
-
-        if (o == newRoot)
-            return;
-
-        last = o;
-        if (scheduleRelayout && objectIsRelayoutBoundary(last))
-            break;
-        o = container;
-    }
-
-    if (scheduleRelayout)
-        last->scheduleRelayout();
-}
-
-inline void makeMatrixRenderable(TransformationMatrix& matrix, bool has3DRendering)
-{
-#if !ENABLE(3D_RENDERING)
-    UNUSED_PARAM(has3DRendering);
-    matrix.makeAffine();
-#else
-    if (!has3DRendering)
-        matrix.makeAffine();
-#endif
-}
-
-inline int adjustForAbsoluteZoom(int value, RenderObject* renderer)
-{
-    return adjustForAbsoluteZoom(value, renderer->style());
-}
-
-inline FloatPoint adjustFloatPointForAbsoluteZoom(const FloatPoint& point, RenderObject* renderer)
-{
-    // The result here is in floats, so we don't need the truncation hack from the integer version above.
-    float zoomFactor = renderer->style()->effectiveZoom();
-    if (zoomFactor == 1)
-        return point;
-    return FloatPoint(point.x() / zoomFactor, point.y() / zoomFactor);
-}
-
-inline void adjustFloatQuadForAbsoluteZoom(FloatQuad& quad, RenderObject* renderer)
-{
-    quad.setP1(adjustFloatPointForAbsoluteZoom(quad.p1(), renderer));
-    quad.setP2(adjustFloatPointForAbsoluteZoom(quad.p2(), renderer));
-    quad.setP3(adjustFloatPointForAbsoluteZoom(quad.p3(), renderer));
-    quad.setP4(adjustFloatPointForAbsoluteZoom(quad.p4(), renderer));
-}
-
-inline void adjustFloatRectForAbsoluteZoom(FloatRect& rect, RenderObject* renderer)
-{
-    RenderStyle* style = renderer->style();
-    rect.setX(adjustFloatForAbsoluteZoom(rect.x(), style));
-    rect.setY(adjustFloatForAbsoluteZoom(rect.y(), style));
-    rect.setWidth(adjustFloatForAbsoluteZoom(rect.width(), style));
-    rect.setHeight(adjustFloatForAbsoluteZoom(rect.height(), style));
-}
-
-} // namespace WebCore
-
-#ifndef NDEBUG
-// Outside the WebCore namespace for ease of invocation from gdb.
-void showTree(const WebCore::RenderObject*);
-void showRenderTree(const WebCore::RenderObject* object1);
-// We don't make object2 an optional parameter so that showRenderTree
-// can be called from gdb easily.
-void showRenderTree(const WebCore::RenderObject* object1, const WebCore::RenderObject* object2);
-#endif
-
-#endif // RenderObject_h