*** DO NOT LAND *** Attempt to understand Regions complexity

Source/core/rendering/line/LineLayoutState.h

Index: Source/core/rendering/line/LineLayoutState.h
diff --git a/Source/core/rendering/line/LineLayoutState.h b/Source/core/rendering/line/LineLayoutState.h
index 963c515d4936dcdc1fc479d5666236504a9bd579..c1ebcdd0c8958f085a02ff0d31b152be431a6e26 100644
--- a/Source/core/rendering/line/LineLayoutState.h
+++ b/Source/core/rendering/line/LineLayoutState.h
@@ -35,7 +35,7 @@ class RenderBlockFlow;
 // during an entire linebox tree layout pass (aka layoutInlineChildren).
 class LineLayoutState {
 public:
-    LineLayoutState(bool fullLayout, LayoutUnit& repaintLogicalTop, LayoutUnit& repaintLogicalBottom, RenderFlowThread* flowThread)
+    LineLayoutState(bool fullLayout, LayoutUnit& repaintLogicalTop, LayoutUnit& repaintLogicalBottom)
         : m_lastFloat(0)
         , m_endLine(0)
         , m_floatIndex(0)
@@ -47,7 +47,6 @@ public:
         , m_repaintLogicalBottom(repaintLogicalBottom)
         , m_adjustedLogicalLineTop(0)
         , m_usesRepaintBounds(false)
-        , m_flowThread(flowThread)
     { }
 
     void markForFullLayout() { m_isFullLayout = true; }
@@ -94,9 +93,6 @@ public:
     LayoutUnit adjustedLogicalLineTop() const { return m_adjustedLogicalLineTop; }
     void setAdjustedLogicalLineTop(LayoutUnit value) { m_adjustedLogicalLineTop = value; }
 
-    RenderFlowThread* flowThread() const { return m_flowThread; }
-    void setFlowThread(RenderFlowThread* thread) { m_flowThread = thread; }
-
 private:
     Vector<RenderBlockFlow::FloatWithRect> m_floats;
     FloatingObject* m_lastFloat;
@@ -116,8 +112,6 @@ private:
     LayoutUnit m_adjustedLogicalLineTop;
 
     bool m_usesRepaintBounds;
-
-    RenderFlowThread* m_flowThread;
 };
 
 }