1 files changed, 6 insertions, 3 deletions
diff --git a/Source/WebCore/rendering/RenderArena.h b/Source/WebCore/rendering/RenderArena.h
index 5538effd6..0f003db5c 100644
--- a/Source/WebCore/rendering/RenderArena.h
+++ b/Source/WebCore/rendering/RenderArena.h
@@ -38,15 +38,16 @@
 #include "Arena.h"
 #include <wtf/FastAllocBase.h>
 #include <wtf/Noncopyable.h>
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
 
 namespace WebCore {
 
 static const size_t gMaxRecycledSize = 1024;
 
-class RenderArena {
-    WTF_MAKE_NONCOPYABLE(RenderArena); WTF_MAKE_FAST_ALLOCATED;
+class RenderArena : public RefCounted<RenderArena> {
 public:
-    RenderArena(unsigned arenaSize = 8192);
+    static PassRefPtr<RenderArena> create() { return adoptRef(new RenderArena); }
     ~RenderArena();
 
     // Memory management functions
@@ -57,6 +58,8 @@ public:
     size_t totalRenderArenaAllocatedBytes() const { return m_totalAllocated; }
 
 private:
+    RenderArena(unsigned arenaSize = 8192);
+    
     // Underlying arena pool
     ArenaPool m_pool;