Move line/continuation specific parts of willBeDestroyed() into LayoutBlockFlow.

third_party/WebKit/Source/core/layout/LayoutBlockFlow.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) 2003-2013 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ skipping 73 matching lines @@
 //
 // This is suggested by CSS to correctly the layout mixed inlines and blocks
 // lines (http://www.w3.org/TR/CSS21/visuren.html#anonymous-block-level). See
 // LayoutBlock::addChild about how the invariant is enforced.
 class CORE_EXPORT LayoutBlockFlow : public LayoutBlock {
 public:
     explicit LayoutBlockFlow(ContainerNode*);
     ~LayoutBlockFlow() override;
 
     static LayoutBlockFlow* createAnonymous(Document*);
+    bool beingDestroyed() const { return m_beingDestroyed; }
 
     bool isLayoutBlockFlow() const final { return true; }
 
     void layoutBlock(bool relayoutChildren) override;
 
     void computeOverflow(LayoutUnit oldClientAfterEdge, bool recomputeFloats = false) override;
 
     void deleteLineBoxTree() final;
 
     LayoutUnit availableLogicalWidthForLine(LayoutUnit position, IndentTextOrNot indentText, LayoutUnit logicalHeight = LayoutUnit()) const
@@ skipping 197 matching lines @@
     void showLineTreeAndMark(const InlineBox* = nullptr, const char* = nullptr, const InlineBox* = nullptr, const char* = nullptr, const LayoutObject* = nullptr) const;
 #endif
 
 protected:
     void rebuildFloatsFromIntruding();
     void layoutInlineChildren(bool relayoutChildren, LayoutUnit& paintInvalidationLogicalTop, LayoutUnit& paintInvalidationLogicalBottom, LayoutUnit afterEdge);
     void addLowestFloatFromChildren(LayoutBlockFlow*);
 
     void createFloatingObjects();
 
+    void willBeDestroyed() override;
     void styleWillChange(StyleDifference, const ComputedStyle& newStyle) override;
     void styleDidChange(StyleDifference, const ComputedStyle* oldStyle) override;
 
     void updateBlockChildDirtyBitsBeforeLayout(bool relayoutChildren, LayoutBox&);
 
     void addOverflowFromFloats();
 
     void computeSelfHitTestRects(Vector<LayoutRect>&, const LayoutPoint& layerOffset) const override;
 
     void absoluteRects(Vector<IntRect>&, const LayoutPoint& accumulatedOffset) const override;
@@ skipping 337 matching lines @@
 
 // END METHODS DEFINED IN LayoutBlockFlowLine
 
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutBlockFlow, isLayoutBlockFlow());
 
 } // namespace blink
 
 #endif // LayoutBlockFlow_h