Preliminary paint property walk implementation for SPv2

third_party/WebKit/Source/core/layout/LayoutObject.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 42 matching lines @@
 #include "platform/transforms/TransformationMatrix.h"
 
 namespace blink {
 
 class AffineTransform;
 class Cursor;
 class Document;
 class HitTestLocation;
 class HitTestResult;
 class InlineBox;
-class PseudoStyleRequest;
 class LayoutBoxModelObject;
 class LayoutBlock;
 class LayoutFlowThread;
 class LayoutGeometryMap;
-class PaintLayer;
 class LayoutMultiColumnSpannerPlaceholder;
 class LayoutView;
+class ObjectPaintProperties;
+class PaintLayer;
+class PseudoStyleRequest;
 class TransformState;
 
 struct PaintInfo;
 
 enum CursorDirective {
     SetCursorBasedOnStyle,
     SetCursor,
     DoNotSetCursor
 };
 
@@ skipping 265 matching lines @@
     // TODO(jchaffraix): |newChild| cannot be nullptr and should be a reference.
     virtual void addChild(LayoutObject* newChild, LayoutObject* beforeChild = nullptr);
     virtual void addChildIgnoringContinuation(LayoutObject* newChild, LayoutObject* beforeChild = nullptr) { return addChild(newChild, beforeChild); }
     virtual void removeChild(LayoutObject*);
     virtual bool createsAnonymousWrapper() const { return false; }
     //////////////////////////////////////////
 
     // Sets the parent of this object but doesn't add it as a child of the parent.
     void setDangerousOneWayParent(LayoutObject*);
 
+    // For SPv2 only. The ObjectPaintProperties structure holds references to the
+    // property tree nodes that are created by the layout object for painting.
+    // The property nodes are only updated during InUpdatePaintProperties phase
+    // of the document lifecycle and shall remain immutable during other phases.
+    ObjectPaintProperties* objectPaintProperties() const;
+    ObjectPaintProperties& ensureObjectPaintProperties();
+    void clearObjectPaintProperties();
+
 private:
     //////////////////////////////////////////
     // Helper functions. Dangerous to use!
     void setPreviousSibling(LayoutObject* previous) { m_previous = previous; }
     void setNextSibling(LayoutObject* next) { m_next = next; }
     void setParent(LayoutObject* parent)
     {
         m_parent = parent;
 
         // Only update if our flow thread state is different from our new parent and if we're not a LayoutFlowThread.
@@ skipping 1635 matching lines @@
 void showTree(const blink::LayoutObject*);
 void showLineTree(const blink::LayoutObject*);
 void showLayoutTree(const blink::LayoutObject* object1);
 // We don't make object2 an optional parameter so that showLayoutTree
 // can be called from gdb easily.
 void showLayoutTree(const blink::LayoutObject* object1, const blink::LayoutObject* object2);
 
 #endif
 
 #endif // LayoutObject_h