Remove block continuation support.

Source/core/layout/LayoutBlock.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 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.
@@ skipping 149 matching lines @@
     RootInlineBox* lineAtIndex(int) const;
     int lineCount(const RootInlineBox* = 0, bool* = 0) const;
     int heightForLineCount(int);
     void clearTruncation();
 
     void addContinuationWithOutline(LayoutInline*);
 
     virtual LayoutBoxModelObject* virtualContinuation() const override final { return continuation(); }
     bool isAnonymousBlockContinuation() const { return continuation() && isAnonymousBlock(); }
     LayoutInline* inlineElementContinuation() const;
-    LayoutBlock* blockElementContinuation() const;
 
     using LayoutBoxModelObject::continuation;
     using LayoutBoxModelObject::setContinuation;
 
     static LayoutBlock* createAnonymousWithParentAndDisplay(const LayoutObject*, EDisplay = BLOCK);
-    static LayoutBlockFlow* createAnonymousColumnsWithParent(const LayoutObject*);
-    static LayoutBlockFlow* createAnonymousColumnSpanWithParent(const LayoutObject*);
     LayoutBlock* createAnonymousBlock(EDisplay display = BLOCK) const { return createAnonymousWithParentAndDisplay(this, display); }
-    LayoutBlockFlow* createAnonymousColumnsBlock() const { return createAnonymousColumnsWithParent(this); }
-    LayoutBlockFlow* createAnonymousColumnSpanBlock() const { return createAnonymousColumnSpanWithParent(this); }
 
     virtual LayoutBox* createAnonymousBoxWithSameTypeAs(const LayoutObject* parent) const override;
 
     int columnGap() const;
 
     // Accessors for logical width/height and margins in the containing block's block-flow direction.
     LayoutUnit logicalWidthForChild(const LayoutBox& child) const { return isHorizontalWritingMode() ? child.size().width() : child.size().height(); }
     LayoutUnit logicalHeightForChild(const LayoutBox& child) const { return isHorizontalWritingMode() ? child.size().height() : child.size().width(); }
     LayoutSize logicalSizeForChild(const LayoutBox& child) const { return isHorizontalWritingMode() ? child.size() : child.size().transposedSize(); }
     LayoutUnit logicalTopForChild(const LayoutBox& child) const { return isHorizontalWritingMode() ? child.location().y() : child.location().x(); }
@@ skipping 120 matching lines @@
 
     // Promote all children and make them siblings that come right after this block.
     void promoteAllChildrenAndInsertAfter();
 
     virtual void removeLeftoverAnonymousBlock(LayoutBlock* child);
 
     static void collapseAnonymousBlockChild(LayoutBlock* parent, LayoutBlock* child);
 
     virtual void dirtyLinesFromChangedChild(LayoutObject* child) override final { m_lineBoxes.dirtyLinesFromChangedChild(this, child); }
 
-    void addChildToContinuation(LayoutObject* newChild, LayoutObject* beforeChild);
     virtual void addChildIgnoringContinuation(LayoutObject* newChild, LayoutObject* beforeChild) override;
-    void addChildToAnonymousColumnBlocks(LayoutObject* newChild, LayoutObject* beforeChild);
-
-    void addChildIgnoringAnonymousColumnBlocks(LayoutObject* newChild, LayoutObject* beforeChild = 0);
 
     virtual bool isSelfCollapsingBlock() const override;
 
     void removeAnonymousWrappersIfRequired();
 
     void insertIntoTrackedLayoutBoxMaps(LayoutBox* descendant, TrackedDescendantsMap*&, TrackedContainerMap*&);
     static void removeFromTrackedLayoutBoxMaps(LayoutBox* descendant, TrackedDescendantsMap*&, TrackedContainerMap*&);
 
     Node* nodeForHitTest() const;
 
@@ skipping 26 matching lines @@
 
 private:
     virtual LayoutRect localCaretRect(InlineBox*, int caretOffset, LayoutUnit* extraWidthToEndOfLine = 0) override final;
     bool isInlineBoxWrapperActuallyChild() const;
 
     void markLinesDirtyInBlockRange(LayoutUnit logicalTop, LayoutUnit logicalBottom, RootInlineBox* highest = 0);
 
     Position positionForBox(InlineBox*, bool start = true) const;
     PositionWithAffinity positionForPointWithInlineChildren(const LayoutPoint&);
 
-    void makeChildrenAnonymousColumnBlocks(LayoutObject* beforeChild, LayoutBlockFlow* newBlockBox, LayoutObject* newChild);
-
-    void splitBlocks(LayoutBlock* fromBlock, LayoutBlock* toBlock, LayoutBlock* middleBlock,
-        LayoutObject* beforeChild, LayoutBoxModelObject* oldCont);
-    void splitFlow(LayoutObject* beforeChild, LayoutBlock* newBlockBox,
-        LayoutObject* newChild, LayoutBoxModelObject* oldCont);
-    LayoutBlock* clone() const;
-    LayoutBlock* continuationBefore(LayoutObject* beforeChild);
-    LayoutBlockFlow* containingColumnsBlock(bool allowAnonymousColumnBlock = true);
-    LayoutBlockFlow* columnsBlockForSpanningElement(LayoutObject* newChild);
-
     // End helper functions and structs used by layoutBlockChildren.
 
     void removeFromGlobalMaps();
     bool widthAvailableToChildrenHasChanged();
 
 protected:
     bool isPageLogicalHeightKnown(LayoutUnit logicalOffset) const { return pageLogicalHeightForOffset(logicalOffset); }
 
     // Returns the logicalOffset at the top of the next page. If the offset passed in is already at the top of the current page,
     // then nextPageLogicalTop with ExcludePageBoundary will still move to the top of the next page. nextPageLogicalTop with
@@ skipping 45 matching lines @@
     // FIXME: This is temporary as we move code that accesses block flow
     // member variables out of LayoutBlock and into LayoutBlockFlow.
     friend class LayoutBlockFlow;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutBlock, isLayoutBlock());
 
 } // namespace blink
 
 #endif // LayoutBlock_h