[LayoutNG] Move ng_block_layout_algorithm to use constraint space builder.

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

Index: third_party/WebKit/Source/core/layout/ng/ng_layout_algorithm.h
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_layout_algorithm.h b/third_party/WebKit/Source/core/layout/ng/ng_layout_algorithm.h
index f6a9c5370053fb1ca0b76cd8a1662b8978117369..f3a0c19cd4b74751c7c9ea321eaa15fd87bb018f 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_layout_algorithm.h
+++ b/third_party/WebKit/Source/core/layout/ng/ng_layout_algorithm.h
@@ -30,10 +30,8 @@ class CORE_EXPORT NGLayoutAlgorithm
   // to be able to store state information.
   // Returns true when done; when this function returns false, it has to be
   // called again. The out parameter will only be set when this function
-  // returns true. The same constraint space has to be passed each time.
-  // TODO(layout-ng): Should we have a StartLayout function to avoid passing
-  // the same space for each Layout iteration?
-  virtual bool Layout(const NGConstraintSpace*, NGPhysicalFragment**) = 0;
+  // returns true.
+  virtual bool Layout(NGPhysicalFragment**) = 0;
 
   DEFINE_INLINE_VIRTUAL_TRACE() {}
 };