Move rendering/RenderLayer* to layout/

Source/core/rendering/RenderLayerStackingNode.h

Index: Source/core/rendering/RenderLayerStackingNode.h
diff --git a/Source/core/rendering/RenderLayerStackingNode.h b/Source/core/rendering/RenderLayerStackingNode.h
deleted file mode 100644
index ce3ee4464090e1a9a03785aad2e00d318f737f7d..0000000000000000000000000000000000000000
--- a/Source/core/rendering/RenderLayerStackingNode.h
+++ /dev/null
@@ -1,216 +0,0 @@
-/*
- * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
- * Copyright (C) 2013 Intel Corporation. All rights reserved.
- *
- * Portions are Copyright (C) 1998 Netscape Communications Corporation.
- *
- * Other contributors:
- *   Robert O'Callahan <roc+@cs.cmu.edu>
- *   David Baron <dbaron@fas.harvard.edu>
- *   Christian Biesinger <cbiesinger@web.de>
- *   Randall Jesup <rjesup@wgate.com>
- *   Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>
- *   Josh Soref <timeless@mac.com>
- *   Boris Zbarsky <bzbarsky@mit.edu>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- * Alternatively, the contents of this file may be used under the terms
- * of either the Mozilla Public License Version 1.1, found at
- * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
- * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
- * (the "GPL"), in which case the provisions of the MPL or the GPL are
- * applicable instead of those above.  If you wish to allow use of your
- * version of this file only under the terms of one of those two
- * licenses (the MPL or the GPL) and not to allow others to use your
- * version of this file under the LGPL, indicate your decision by
- * deletingthe provisions above and replace them with the notice and
- * other provisions required by the MPL or the GPL, as the case may be.
- * If you do not delete the provisions above, a recipient may use your
- * version of this file under any of the LGPL, the MPL or the GPL.
- */
-
-#ifndef RenderLayerStackingNode_h
-#define RenderLayerStackingNode_h
-
-#include "core/rendering/RenderLayerModelObject.h"
-#include "wtf/Noncopyable.h"
-#include "wtf/OwnPtr.h"
-#include "wtf/Vector.h"
-
-namespace blink {
-
-class RenderLayer;
-class RenderLayerCompositor;
-class RenderStyle;
-
-class RenderLayerStackingNode {
-    WTF_MAKE_NONCOPYABLE(RenderLayerStackingNode);
-public:
-    explicit RenderLayerStackingNode(RenderLayer*);
-    ~RenderLayerStackingNode();
-
-    int zIndex() const { return renderer()->style()->zIndex(); }
-
-    // A stacking context is a layer that has a non-auto z-index.
-    bool isStackingContext() const { return !renderer()->style()->hasAutoZIndex(); }
-
-    // Update our normal and z-index lists.
-    void updateLayerListsIfNeeded();
-
-    bool zOrderListsDirty() const { return m_zOrderListsDirty; }
-    void dirtyZOrderLists();
-    void updateZOrderLists();
-    void clearZOrderLists();
-    void dirtyStackingContextZOrderLists();
-
-    bool hasPositiveZOrderList() const { return posZOrderList() && posZOrderList()->size(); }
-    bool hasNegativeZOrderList() const { return negZOrderList() && negZOrderList()->size(); }
-
-    // FIXME: should check for dirtiness here?
-    bool isNormalFlowOnly() const { return m_isNormalFlowOnly; }
-    void updateIsNormalFlowOnly();
-    bool normalFlowListDirty() const { return m_normalFlowListDirty; }
-    void dirtyNormalFlowList();
-
-    void updateStackingNodesAfterStyleChange(const RenderStyle* oldStyle);
-
-    RenderLayerStackingNode* ancestorStackingContextNode() const;
-
-    RenderLayer* layer() const { return m_layer; }
-
-#if ENABLE(ASSERT)
-    bool layerListMutationAllowed() const { return m_layerListMutationAllowed; }
-    void setLayerListMutationAllowed(bool flag) { m_layerListMutationAllowed = flag; }
-#endif
-
-private:
-    friend class RenderLayerStackingNodeIterator;
-    friend class RenderLayerStackingNodeReverseIterator;
-    friend class LayoutTreeAsText;
-
-    Vector<RenderLayerStackingNode*>* posZOrderList() const
-    {
-        ASSERT(!m_zOrderListsDirty);
-        ASSERT(isStackingContext() || !m_posZOrderList);
-        return m_posZOrderList.get();
-    }
-
-    Vector<RenderLayerStackingNode*>* normalFlowList() const
-    {
-        ASSERT(!m_normalFlowListDirty);
-        return m_normalFlowList.get();
-    }
-
-    Vector<RenderLayerStackingNode*>* negZOrderList() const
-    {
-        ASSERT(!m_zOrderListsDirty);
-        ASSERT(isStackingContext() || !m_negZOrderList);
-        return m_negZOrderList.get();
-    }
-
-    void rebuildZOrderLists();
-    void collectLayers(OwnPtr<Vector<RenderLayerStackingNode*> >& posZOrderList, OwnPtr<Vector<RenderLayerStackingNode*> >& negZOrderList);
-
-#if ENABLE(ASSERT)
-    bool isInStackingParentZOrderLists() const;
-    bool isInStackingParentNormalFlowList() const;
-    void updateStackingParentForZOrderLists(RenderLayerStackingNode* stackingParent);
-    void updateStackingParentForNormalFlowList(RenderLayerStackingNode* stackingParent);
-    void setStackingParent(RenderLayerStackingNode* stackingParent) { m_stackingParent = stackingParent; }
-#endif
-
-    bool shouldBeNormalFlowOnly() const;
-
-    void updateNormalFlowList();
-
-    bool isDirtyStackingContext() const { return m_zOrderListsDirty && isStackingContext(); }
-
-    RenderLayerCompositor* compositor() const;
-    // FIXME: Investigate changing this to Renderbox.
-    RenderLayerModelObject* renderer() const;
-
-    RenderLayer* m_layer;
-
-    // m_posZOrderList holds a sorted list of all the descendant nodes within
-    // that have z-indices of 0 or greater (auto will count as 0).
-    // m_negZOrderList holds descendants within our stacking context with
-    // negative z-indices.
-    OwnPtr<Vector<RenderLayerStackingNode*> > m_posZOrderList;
-    OwnPtr<Vector<RenderLayerStackingNode*> > m_negZOrderList;
-
-    // This list contains child nodes that cannot create stacking contexts.
-    OwnPtr<Vector<RenderLayerStackingNode*> > m_normalFlowList;
-
-    unsigned m_zOrderListsDirty : 1;
-    unsigned m_normalFlowListDirty: 1;
-    unsigned m_isNormalFlowOnly : 1;
-
-#if ENABLE(ASSERT)
-    unsigned m_layerListMutationAllowed : 1;
-    RenderLayerStackingNode* m_stackingParent;
-#endif
-};
-
-inline void RenderLayerStackingNode::clearZOrderLists()
-{
-    ASSERT(!isStackingContext());
-
-#if ENABLE(ASSERT)
-    updateStackingParentForZOrderLists(0);
-#endif
-
-    m_posZOrderList.clear();
-    m_negZOrderList.clear();
-}
-
-inline void RenderLayerStackingNode::updateZOrderLists()
-{
-    if (!m_zOrderListsDirty)
-        return;
-
-    if (!isStackingContext()) {
-        clearZOrderLists();
-        m_zOrderListsDirty = false;
-        return;
-    }
-
-    rebuildZOrderLists();
-}
-
-#if ENABLE(ASSERT)
-class LayerListMutationDetector {
-public:
-    explicit LayerListMutationDetector(RenderLayerStackingNode* stackingNode)
-        : m_stackingNode(stackingNode)
-        , m_previousMutationAllowedState(stackingNode->layerListMutationAllowed())
-    {
-        m_stackingNode->setLayerListMutationAllowed(false);
-    }
-
-    ~LayerListMutationDetector()
-    {
-        m_stackingNode->setLayerListMutationAllowed(m_previousMutationAllowedState);
-    }
-
-private:
-    RenderLayerStackingNode* m_stackingNode;
-    bool m_previousMutationAllowedState;
-};
-#endif
-
-} // namespace blink
-
-#endif // RenderLayerStackingNode_h