Merge overflowRectForFlowThreadPortion() into flowThreadPortionOverflowRectAt().

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

 /*
  * Copyright (C) 2012 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 142 matching lines @@
   }
 
   // Return the amount of flow thread contents that the specified fragmentainer
   // group can hold without overflowing.
   LayoutUnit fragmentainerGroupCapacity(
       const MultiColumnFragmentainerGroup& group) const {
     return group.logicalHeight() * usedColumnCount();
   }
 
   LayoutRect flowThreadPortionRect() const;
-  LayoutRect flowThreadPortionOverflowRect() const;
-  LayoutRect overflowRectForFlowThreadPortion(
-      const LayoutRect& flowThreadPortionRect,
-      bool isFirstPortion,
-      bool isLastPortion) const;
 
   // The used CSS value of column-count, i.e. how many columns there are room
   // for without overflowing.
   unsigned usedColumnCount() const {
     return multiColumnFlowThread()->columnCount();
   }
 
   bool heightIsAuto() const;
 
   // Find the column that contains the given block offset, and return the
@@ skipping 95 matching lines @@
   LayoutUnit m_oldLogicalTop;
 
   bool m_initialHeightCalculated;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutMultiColumnSet, isLayoutMultiColumnSet());
 
 }  // namespace blink
 
 #endif  // LayoutMultiColumnSet_h