Remove pageLogicalHeightChanged() from LayoutState.

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

 /*
  * 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 14 matching lines @@
 
 #include "core/layout/LayoutState.h"
 
 #include "core/layout/LayoutFlowThread.h"
 #include "core/layout/LayoutInline.h"
 #include "core/layout/LayoutView.h"
 
 namespace blink {
 
 LayoutState::LayoutState(LayoutUnit pageLogicalHeight,
-                         bool pageLogicalHeightChanged,
                          LayoutView& view)
     : m_isPaginated(pageLogicalHeight),
-      m_pageLogicalHeightChanged(pageLogicalHeightChanged),
       m_containingBlockLogicalWidthChanged(false),
       m_paginationStateChanged(false),
       m_flowThread(nullptr),
       m_next(nullptr),
       m_pageLogicalHeight(pageLogicalHeight),
       m_layoutObject(view) {
   ASSERT(!view.layoutState());
   view.pushLayoutState(*this);
 }
 
 LayoutState::LayoutState(LayoutBox& layoutObject,
                          LayoutUnit pageLogicalHeight,
-                         bool pageLogicalHeightChanged,
                          bool containingBlockLogicalWidthChanged)
     : m_containingBlockLogicalWidthChanged(containingBlockLogicalWidthChanged),
       m_next(layoutObject.view()->layoutState()),
       m_layoutObject(layoutObject) {
   if (layoutObject.isLayoutFlowThread())
     m_flowThread = toLayoutFlowThread(&layoutObject);
   else if (!layoutObject.isOutOfFlowPositioned())
     m_flowThread = m_next->flowThread();
   else
     m_flowThread = nullptr;
   m_paginationStateChanged = m_next->m_paginationStateChanged;
   layoutObject.view()->pushLayoutState(*this);
   m_heightOffsetForTableHeaders = m_next->heightOffsetForTableHeaders();
 
   if (pageLogicalHeight || layoutObject.isLayoutFlowThread()) {
     // Entering a new pagination context.
     m_pageLogicalHeight = pageLogicalHeight;
-    m_pageLogicalHeightChanged = pageLogicalHeightChanged;
     m_paginationOffset = LayoutSize();
     m_isPaginated = true;
     return;
   }
 
   // Disable pagination for objects we don't support. For now this includes
   // overflow:scroll/auto, inline blocks and writing mode roots. Additionally,
   // pagination inside SVG is not allowed.
   if (layoutObject.getPaginationBreakability() == LayoutBox::ForbidBreaks ||
       (m_layoutObject.isSVG() && !m_layoutObject.isSVGRoot())) {
     m_flowThread = nullptr;
     m_pageLogicalHeight = LayoutUnit();
-    m_pageLogicalHeightChanged = false;
     m_isPaginated = false;
     return;
   }
 
   // Propagate the old page height and offset down.
   m_pageLogicalHeight = m_next->m_pageLogicalHeight;
-  m_pageLogicalHeightChanged = m_next->m_pageLogicalHeightChanged;
 
   m_isPaginated = m_pageLogicalHeight || m_flowThread;
   if (!m_isPaginated)
     return;
 
   // Now adjust the pagination offset, so that we can easily figure out how far
   // away we are from the start of the pagination context.
   m_paginationOffset = m_next->m_paginationOffset;
   bool fixed = layoutObject.isOutOfFlowPositioned() &&
                layoutObject.style()->position() == FixedPosition;
@@ skipping 11 matching lines @@
               layoutObject);
     }
   }
 
   // FIXME: <http://bugs.webkit.org/show_bug.cgi?id=13443> Apply control clip if
   // present.
 }
 
 LayoutState::LayoutState(LayoutObject& root)
     : m_isPaginated(false),
-      m_pageLogicalHeightChanged(false),
       m_containingBlockLogicalWidthChanged(false),
       m_paginationStateChanged(false),
       m_flowThread(nullptr),
       m_next(root.view()->layoutState()),
       m_layoutObject(root) {
   ASSERT(!m_next);
   // We'll end up pushing in LayoutView itself, so don't bother adding it.
   if (root.isLayoutView())
     return;
 
   root.view()->pushLayoutState(*this);
 }
 
 LayoutState::~LayoutState() {
   if (m_layoutObject.view()->layoutState()) {
     ASSERT(m_layoutObject.view()->layoutState() == this);
     m_layoutObject.view()->popLayoutState();
   }
 }
 
 LayoutUnit LayoutState::pageLogicalOffset(
     const LayoutBox& child,
     const LayoutUnit& childLogicalOffset) const {
   if (child.isHorizontalWritingMode())
     return m_paginationOffset.height() + childLogicalOffset;
   return m_paginationOffset.width() + childLogicalOffset;
 }
 
 }  // namespace blink