No longer store page logical height in LayoutState.

third_party/WebKit/Source/core/layout/LayoutState.h

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 49 matching lines @@
 // for computations.
 class LayoutState {
   // LayoutState is always allocated on the stack.
   // The reason is that it is scoped to layout, thus we can avoid expensive
   // mallocs.
   DISALLOW_NEW();
   WTF_MAKE_NONCOPYABLE(LayoutState);
 
  public:
   // Constructor for root LayoutState created by LayoutView
-  LayoutState(LayoutUnit pageLogicalHeight,
-              LayoutView&);
+  explicit LayoutState(LayoutView&);
   // Constructor for sub-tree layout and orthogonal writing-mode roots
   explicit LayoutState(LayoutObject& root);
 
   LayoutState(LayoutBox&,
-              LayoutUnit pageLogicalHeight = LayoutUnit(),
               bool containingBlockLogicalWidthChanged = false);
 
   ~LayoutState();
 
   bool isPaginated() const { return m_isPaginated; }
 
   // The page logical offset is the object's offset from the top of the page in
   // the page progression direction (so an x-offset in vertical text and a
   // y-offset for horizontal text).
   LayoutUnit pageLogicalOffset(const LayoutBox&,
                                const LayoutUnit& childLogicalOffset) const;
 
   LayoutUnit heightOffsetForTableHeaders() const {
     return m_heightOffsetForTableHeaders;
   };
   void setHeightOffsetForTableHeaders(LayoutUnit offset) {
     m_heightOffsetForTableHeaders = offset;
   };
 
   const LayoutSize& paginationOffset() const { return m_paginationOffset; }
-  LayoutUnit pageLogicalHeight() const { return m_pageLogicalHeight; }
   bool containingBlockLogicalWidthChanged() const {
     return m_containingBlockLogicalWidthChanged;
   }
 
   bool paginationStateChanged() const { return m_paginationStateChanged; }
   void setPaginationStateChanged() { m_paginationStateChanged = true; }
 
   LayoutState* next() const { return m_next; }
 
   LayoutFlowThread* flowThread() const { return m_flowThread; }
 
   LayoutObject& layoutObject() const { return m_layoutObject; }
 
  private:
   // Do not add anything apart from bitfields until after m_flowThread. See
   // https://bugs.webkit.org/show_bug.cgi?id=100173
   bool m_isPaginated : 1;
 
   bool m_containingBlockLogicalWidthChanged : 1;
   bool m_paginationStateChanged : 1;
 
   LayoutFlowThread* m_flowThread;
 
   LayoutState* m_next;
 
   // x/y offset from the logical top / start of the first page. Does not include
   // relative positioning or scroll offsets.
   LayoutSize m_paginationOffset;
 
-  // The current page height for the pagination model that encloses us.
-  LayoutUnit m_pageLogicalHeight;
-
   // The height we need to make available for repeating table headers in
   // paginated layout.
   LayoutUnit m_heightOffsetForTableHeaders;
 
   LayoutObject& m_layoutObject;
 };
 
 }  // namespace blink
 
 #endif  // LayoutState_h