[LayoutNG] Move NGFloatingObject off Oilpan

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NGFloatingObject_h
 #define NGFloatingObject_h
 
 #include "core/layout/ng/geometry/ng_box_strut.h"
 #include "core/layout/ng/ng_block_node.h"
 #include "core/layout/ng/ng_constraint_space.h"
 #include "core/layout/ng/ng_exclusion.h"
+#include "core/layout/ng/ng_physical_fragment.h"
 #include "core/style/ComputedStyle.h"
 #include "core/style/ComputedStyleConstants.h"
-#include "platform/heap/Handle.h"
+#include "wtf/RefPtr.h"
 
 namespace blink {
 
-class NGPhysicalFragment;
-
 // Struct that keeps all information needed to position floats in LayoutNG.
-struct CORE_EXPORT NGFloatingObject
-    : public GarbageCollectedFinalized<NGFloatingObject> {
-  NGFloatingObject(const NGConstraintSpace* space,
-                   const NGConstraintSpace* parent_space,
-                   const ComputedStyle& style,
-                   const NGBoxStrut& margins,
-                   NGPhysicalFragment* fragment)
-      : space(space),
-        original_parent_space(parent_space),
-        margins(margins),
-        fragment(fragment) {
-    exclusion_type = NGExclusion::kFloatLeft;
-    if (style.floating() == EFloat::kRight)
-      exclusion_type = NGExclusion::kFloatRight;
-    clear_type = style.clear();
+struct CORE_EXPORT NGFloatingObject : public RefCounted<NGFloatingObject> {
+ public:
+  static RefPtr<NGFloatingObject> Create(const NGConstraintSpace* space,
+                                         const NGConstraintSpace* parent_space,
+                                         const ComputedStyle& style,
+                                         const NGBoxStrut& margins,
+                                         NGPhysicalFragment* fragment) {
+    return adoptRef(
+        new NGFloatingObject(space, parent_space, style, margins, fragment));
   }
 
   // Original constraint space of the float.
   RefPtr<const NGConstraintSpace> space;
 
   // Parent space is used so we can calculate the inline offset relative to
   // the original parent of this float.
   RefPtr<const NGConstraintSpace> original_parent_space;
 
   NGExclusion::Type exclusion_type;
   EClear clear_type;
   NGBoxStrut margins;
 
   RefPtr<NGPhysicalFragment> fragment;
 
   // In the case where a legacy FloatingObject is attached to not its own
   // parent, e.g. a float surrounded by a bunch of nested empty divs,
   // NG float fragment's LeftOffset() cannot be used as legacy FloatingObject's
   // left offset because that offset should be relative to the original float
   // parent.
   // {@code left_offset} is calculated when we know to which parent this float
   // would be attached.
   LayoutUnit left_offset;
 
-  DEFINE_INLINE_TRACE() {
+ private:
+  NGFloatingObject(const NGConstraintSpace* space,
+                   const NGConstraintSpace* parent_space,
+                   const ComputedStyle& style,
+                   const NGBoxStrut& margins,
+                   NGPhysicalFragment* fragment)
+      : space(space),
+        original_parent_space(parent_space),
+        margins(margins),
+        fragment(fragment) {
+    exclusion_type = NGExclusion::kFloatLeft;
+    if (style.floating() == EFloat::kRight)
+      exclusion_type = NGExclusion::kFloatRight;
+    clear_type = style.clear();
   }
 };
 
 }  // namespace blink
 
 #endif  // NGFloatingObject_h