Uptake WebKit Changeset r149185.

Source/core/rendering/RenderArena.h

Index: Source/core/rendering/RenderArena.h
diff --git a/Source/core/rendering/RenderArena.h b/Source/core/rendering/RenderArena.h
index 0dd278d98f813d17428a465db479cb97e804079e..255509eda6589f5fcae051a79c92f5709a6721b0 100644
--- a/Source/core/rendering/RenderArena.h
+++ b/Source/core/rendering/RenderArena.h
@@ -36,17 +36,18 @@
 #define RenderArena_h
 
 #include "core/platform/Arena.h"
-#include <wtf/FastAllocBase.h>
-#include <wtf/Noncopyable.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:
-    explicit 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;