[LayoutNG] Move NGFloatingObject off Oilpan

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

Index: third_party/WebKit/Source/core/layout/ng/ng_layout_result.h
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_layout_result.h b/third_party/WebKit/Source/core/layout/ng/ng_layout_result.h
index 3ec776990cf99fe23231b975227433589e8698ad..64689633dfde025341e81d111a125cb33f70de24 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_layout_result.h
+++ b/third_party/WebKit/Source/core/layout/ng/ng_layout_result.h
@@ -7,6 +7,7 @@
 
 #include "core/CoreExport.h"
 #include "core/layout/ng/geometry/ng_static_position.h"
+#include "core/layout/ng/ng_floating_object.h"
 #include "core/layout/ng/ng_physical_fragment.h"
 #include "platform/LayoutUnit.h"
 #include "platform/heap/Handle.h"
@@ -15,7 +16,6 @@
 namespace blink {
 
 class LayoutObject;
-class NGPhysicalFragment;
 class NGBlockNode;
 struct NGFloatingObject;
 
@@ -48,7 +48,7 @@ class CORE_EXPORT NGLayoutResult : public RefCounted<NGLayoutResult> {
   // The float cannot be positioned right away inside of the 1st div because
   // the vertical position is not known at that moment. It will be known only
   // after the 2nd div collapses its margin with its parent.
-  const Vector<Persistent<NGFloatingObject>>& UnpositionedFloats() const {
+  const Vector<RefPtr<NGFloatingObject>>& UnpositionedFloats() const {
     return unpositioned_floats_;
   }
 
@@ -59,13 +59,13 @@ class CORE_EXPORT NGLayoutResult : public RefCounted<NGLayoutResult> {
                  PersistentHeapLinkedHashSet<WeakMember<NGBlockNode>>&
                      out_of_flow_descendants,
                  Vector<NGStaticPosition> out_of_flow_positions,
-                 Vector<Persistent<NGFloatingObject>>& unpositioned_floats);
+                 Vector<RefPtr<NGFloatingObject>>& unpositioned_floats);
 
   RefPtr<NGPhysicalFragment> physical_fragment_;
   LayoutObject* layout_object_;
   PersistentHeapLinkedHashSet<WeakMember<NGBlockNode>> out_of_flow_descendants_;
   Vector<NGStaticPosition> out_of_flow_positions_;
-  Vector<Persistent<NGFloatingObject>> unpositioned_floats_;
+  Vector<RefPtr<NGFloatingObject>> unpositioned_floats_;
 };
 
 }  // namespace blink