Need to remove line pagination struts when no longer fragmented.

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

Index: third_party/WebKit/Source/core/layout/line/LineLayoutState.h
diff --git a/third_party/WebKit/Source/core/layout/line/LineLayoutState.h b/third_party/WebKit/Source/core/layout/line/LineLayoutState.h
index 8fab748b6fe5551d44a9d74e49ddd61b4be6e9de..efede63e3bb503c73155ef2f1efc300feefb9432 100644
--- a/third_party/WebKit/Source/core/layout/line/LineLayoutState.h
+++ b/third_party/WebKit/Source/core/layout/line/LineLayoutState.h
@@ -44,11 +44,19 @@ class LineLayoutState {
         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;
@@ -97,6 +105,8 @@ class LineLayoutState {
 
   bool m_isFullLayout;
 
+  bool m_needsPaginationStrutRecalculation;
+
   LayoutUnit m_adjustedLogicalLineTop;
 };