Add #include <algorithm> to code that is missing it.

Source/core/layout/ColumnInfo.h

 /*
  * Copyright (C) 2010, 2011 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 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ColumnInfo_h
 #define ColumnInfo_h
 
 #include "platform/LayoutUnit.h"
 #include "wtf/FastAllocBase.h"
 #include "wtf/Noncopyable.h"
+#include <algorithm>
 
 namespace blink {
 
 class ColumnInfo {
     WTF_MAKE_NONCOPYABLE(ColumnInfo); WTF_MAKE_FAST_ALLOCATED(ColumnInfo);
 public:
     ColumnInfo()
         : m_desiredColumnWidth(0)
         , m_desiredColumnCount(1)
         , m_progressionAxis(InlineAxis)
@@ skipping 61 matching lines @@
     LayoutUnit m_columnHeight;
     LayoutUnit m_minimumColumnHeight;
     int m_forcedBreaks; // FIXME: We will ultimately need to cache more information to balance around forced breaks properly.
     LayoutUnit m_maximumDistanceBetweenForcedBreaks;
     LayoutUnit m_forcedBreakOffset;
 };
 
 }
 
 #endif