Respect constrained height on nested multicol containers.

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

Index: third_party/WebKit/Source/core/layout/LayoutMultiColumnSet.h
diff --git a/third_party/WebKit/Source/core/layout/LayoutMultiColumnSet.h b/third_party/WebKit/Source/core/layout/LayoutMultiColumnSet.h
index e479a5951d6700e66c18500b614d49fee4060dcb..8f5e5bba35ffbb7d0d703e61a8f4e2880e00883b 100644
--- a/third_party/WebKit/Source/core/layout/LayoutMultiColumnSet.h
+++ b/third_party/WebKit/Source/core/layout/LayoutMultiColumnSet.h
@@ -136,10 +136,10 @@ class CORE_EXPORT LayoutMultiColumnSet : public LayoutBlockFlow {
   LayoutMultiColumnSet* nextSiblingMultiColumnSet() const;
   LayoutMultiColumnSet* previousSiblingMultiColumnSet() const;
 
-  // Return true if we have a fragmentainer group that can hold a column at the
-  // specified flow thread block offset.
-  bool hasFragmentainerGroupForColumnAt(LayoutUnit bottomOffsetInFlowThread,
-                                        PageBoundaryRule) const;
+  // Return true if we need to create additional fragmentainer group(s) to hold
+  // a column at the specified flow thread block offset.
+  bool needsNewFragmentainerGroupAt(LayoutUnit bottomOffsetInFlowThread,
+                                    PageBoundaryRule) const;
 
   MultiColumnFragmentainerGroup& appendNewFragmentainerGroup();