Make NGFragment to own NGPhysicalFragment

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

Index: third_party/WebKit/Source/core/layout/ng/ng_physical_constraint_space.h
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_physical_constraint_space.h b/third_party/WebKit/Source/core/layout/ng/ng_physical_constraint_space.h
index ebd5ea9d68c1341a9c0cf775a181771b7abe2c14..fa38fed7e1310f3eeac80b18eb2ccf0b913732e9 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_physical_constraint_space.h
+++ b/third_party/WebKit/Source/core/layout/ng/ng_physical_constraint_space.h
@@ -54,20 +54,18 @@ struct NGExclusion {
 // The NGPhysicalConstraintSpace contains the underlying data for the
 // NGConstraintSpace. It is not meant to be used directly as all members are in
 // the physical coordinate space. Instead NGConstraintSpace should be used.
-class CORE_EXPORT NGPhysicalConstraintSpace final

[cbiesinger, 2016/09/26 17:17:55]

Why remove the final?

-    : public GarbageCollectedFinalized<NGPhysicalConstraintSpace> {
+class CORE_EXPORT NGPhysicalConstraintSpace {
  public:
   NGPhysicalConstraintSpace();
   NGPhysicalConstraintSpace(NGPhysicalSize);
-  NGPhysicalConstraintSpace(const NGPhysicalConstraintSpace&);
+
+  ~NGPhysicalConstraintSpace() = default;
 
   NGPhysicalSize ContainerSize() const { return container_size_; }
 
   void AddExclusion(const NGExclusion, unsigned options = 0);
   const Vector<NGExclusion>& Exclusions(unsigned options = 0) const;
 
-  DEFINE_INLINE_TRACE() {}
-
  private:
   friend class NGConstraintSpace;