Remove obsolete NGConstraintSpace::ChildSpace

third_party/WebKit/Source/core/layout/ng/ng_constraint_space.cc

Index: third_party/WebKit/Source/core/layout/ng/ng_constraint_space.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_constraint_space.cc b/third_party/WebKit/Source/core/layout/ng/ng_constraint_space.cc
index 52dde27b0a7a8314b1a823a60a65250177c03b04..17b66150cb4766ad7f97c141a835f191edb71c10 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_constraint_space.cc
+++ b/third_party/WebKit/Source/core/layout/ng/ng_constraint_space.cc
@@ -102,14 +102,6 @@ NGLayoutOpportunityIterator* NGConstraintSpace::LayoutOpportunities(
   return iterator;
 }
 
-NGConstraintSpace* NGConstraintSpace::ChildSpace(
-    const ComputedStyle* style) const {
-  return NGConstraintSpaceBuilder(this)
-      .SetWritingMode(FromPlatformWritingMode(style->getWritingMode()))
-      .SetTextDirection(style->direction())
-      .ToConstraintSpace();
-}
-
 String NGConstraintSpace::ToString() const {
   return String::format("%s,%s %sx%s",
                         offset_.inline_offset.toString().ascii().data(),