Need to remove line pagination struts when no longer fragmented.

third_party/WebKit/Source/core/layout/line/LineLayoutState.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
  *               All right reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2014 Adobe Systems Incorporated. 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
@@ skipping 26 matching lines @@
 class LineLayoutState {
   STACK_ALLOCATED();
 
  public:
   LineLayoutState(bool fullLayout)
       : m_lastFloat(nullptr),
         m_endLine(nullptr),
         m_floatIndex(0),
         m_endLineMatched(false),
         m_hasInlineChild(false),
-        m_isFullLayout(fullLayout) {}
+        m_isFullLayout(fullLayout),
+        m_needsPaginationStrutRecalculation(false) {}
 
   void markForFullLayout() { m_isFullLayout = true; }
   bool isFullLayout() const { return m_isFullLayout; }
 
+  bool needsPaginationStrutRecalculation() const {
+    return m_needsPaginationStrutRecalculation || isFullLayout();
+  }
+  void setNeedsPaginationStrutRecalculation() {
+    m_needsPaginationStrutRecalculation = true;
+  }
+
   bool endLineMatched() const { return m_endLineMatched; }
   void setEndLineMatched(bool endLineMatched) {
     m_endLineMatched = endLineMatched;
   }
 
   bool hasInlineChild() const { return m_hasInlineChild; }
   void setHasInlineChild(bool hasInlineChild) {
     m_hasInlineChild = hasInlineChild;
   }
 
@@ skipping 28 matching lines @@
   LineInfo m_lineInfo;
   unsigned m_floatIndex;
   LayoutUnit m_endLineLogicalTop;
   bool m_endLineMatched;
   // Used as a performance optimization to avoid doing a full paint invalidation
   // when our floats change but we don't have any inline children.
   bool m_hasInlineChild;
 
   bool m_isFullLayout;
 
+  bool m_needsPaginationStrutRecalculation;
+
   LayoutUnit m_adjustedLogicalLineTop;
 };
 
 }  // namespace blink
 
 #endif  // LineLayoutState_h