[LayoutNG] Move ng_block_layout_algorithm to use constraint space builder.

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

Index: third_party/WebKit/Source/core/layout/ng/ng_constraint_space.h
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_constraint_space.h b/third_party/WebKit/Source/core/layout/ng/ng_constraint_space.h
index 917ebd4f3127f817d41a9926866a54958a78f594..e0b69603a5af6899f9da56d0dbf6d6e2745a6376 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_constraint_space.h
+++ b/third_party/WebKit/Source/core/layout/ng/ng_constraint_space.h
@@ -31,16 +31,6 @@ class CORE_EXPORT NGConstraintSpace final
   // coordinates.
   NGConstraintSpace(NGWritingMode, NGDirection, NGPhysicalConstraintSpace*);
 
-  // Constructs a derived constraint space that shares the exclusions of the
-  // input constraint space, but has a different container size, writing mode
-  // and direction. Sets the offset to zero. For use by layout algorithms
-  // to use as the basis to find layout opportunities for children.
-  // TODO(layout-dev): Remove once NGConstraintSpaceBuilder exists.
-  NGConstraintSpace(NGWritingMode,
-                    NGDirection,
-                    const NGConstraintSpace& other,
-                    NGLogicalSize);
-
   // This should live on NGBox or another layout bridge and probably take a root
   // NGConstraintSpace or a NGPhysicalConstraintSpace.
   static NGConstraintSpace* CreateFromLayoutObject(const LayoutBox&);
@@ -83,6 +73,9 @@ class CORE_EXPORT NGConstraintSpace final
   // return the size of the layout opportunity.
   virtual NGLogicalSize Size() const { return size_; }
 
+  // Sets the effective size of the constraint space.
+  void SetSize(NGLogicalSize);
+
   // Whether the current constraint space is for the newly established
   // Formatting Context.
   bool IsNewFormattingContext() const;