[New Multicolumn] Remove the term "balancing" from some member names.

Source/core/rendering/RenderMultiColumnSet.cpp

Index: Source/core/rendering/RenderMultiColumnSet.cpp
diff --git a/Source/core/rendering/RenderMultiColumnSet.cpp b/Source/core/rendering/RenderMultiColumnSet.cpp
index 01711123b4832c8d39ff2a6cd0ea71dad9bf1853..3b4b48dcf3a152eb1f6231ac252c6fa77717176f 100644
--- a/Source/core/rendering/RenderMultiColumnSet.cpp
+++ b/Source/core/rendering/RenderMultiColumnSet.cpp
@@ -143,7 +143,7 @@ void RenderMultiColumnSet::distributeImplicitBreaks()
     }
 }
 
-LayoutUnit RenderMultiColumnSet::calculateBalancedHeight(bool initial) const
+LayoutUnit RenderMultiColumnSet::calculateColumnHeight(bool initial) const
 {
     if (initial) {
         // Start with the lowest imaginable column height.
@@ -191,14 +191,14 @@ void RenderMultiColumnSet::addForcedBreak(LayoutUnit offsetFromFirstPage)
         m_contentRuns.append(ContentRun(offsetFromFirstPage));
 }
 
-bool RenderMultiColumnSet::recalculateBalancedHeight(bool initial)
+bool RenderMultiColumnSet::recalculateColumnHeight(bool initial)
 {
     ASSERT(multiColumnFlowThread()->requiresBalancing());
 
     LayoutUnit oldColumnHeight = m_computedColumnHeight;
     if (initial)
         distributeImplicitBreaks();
-    LayoutUnit newColumnHeight = calculateBalancedHeight(initial);
+    LayoutUnit newColumnHeight = calculateColumnHeight(initial);
     setAndConstrainColumnHeight(newColumnHeight);
 
     // After having calculated an initial column height, the multicol container typically needs at