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-rw-r--r--Source/WebCore/rendering/RenderOverflow.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/Source/WebCore/rendering/RenderOverflow.h b/Source/WebCore/rendering/RenderOverflow.h
index 2430b882d..257030527 100644
--- a/Source/WebCore/rendering/RenderOverflow.h
+++ b/Source/WebCore/rendering/RenderOverflow.h
@@ -22,6 +22,7 @@
#define RenderOverflow_h
#include "LayoutRect.h"
+#include <wtf/RefCounted.h>
namespace WebCore
{
@@ -34,10 +35,10 @@ namespace WebCore
// Layout overflow examples include other boxes that spill out of our box, For example, in the inline case a tall image
// could spill out of a line box.
-// Examples of visual overflow are shadows, text stroke (and eventually outline and border-image).
+// Examples of visual overflow are shadows, text stroke, outline (and eventually border-image).
// This object is allocated only when some of these fields have non-default values in the owning box.
-class RenderOverflow {
+class RenderOverflow : public WTF::RefCounted<RenderOverflow> {
WTF_MAKE_NONCOPYABLE(RenderOverflow); WTF_MAKE_FAST_ALLOCATED;
public:
RenderOverflow(const LayoutRect& layoutRect, const LayoutRect& visualRect)