[LayoutNG] Introduce NGPhysicalFragment and make NGFragment a 'view'

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 e8547c38f95a272fe85aa526760f036b76a8f955..f6a9c5370053fb1ca0b76cd8a1662b8978117369 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
@@ -12,7 +12,7 @@
 namespace blink {
 
 class NGConstraintSpace;
-class NGFragment;
+class NGPhysicalFragment;
 
 // Base class for all LayoutNG algorithms.
 class CORE_EXPORT NGLayoutAlgorithm
@@ -33,7 +33,7 @@ class CORE_EXPORT NGLayoutAlgorithm
   // 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*, NGFragment**) = 0;
+  virtual bool Layout(const NGConstraintSpace*, NGPhysicalFragment**) = 0;
 
   DEFINE_INLINE_VIRTUAL_TRACE() {}
 };