1 files changed, 7 insertions, 4 deletions
diff --git a/core/fpdfapi/render/cpdf_devicebuffer.h b/core/fpdfapi/render/cpdf_devicebuffer.h
index 61cdc9776b..bfab27503b 100644
--- a/core/fpdfapi/render/cpdf_devicebuffer.h
+++ b/core/fpdfapi/render/cpdf_devicebuffer.h
@@ -9,6 +9,8 @@
 
 #include <memory>
 
+#include "core/fxcrt/cfx_retain_ptr.h"
+#include "core/fxcrt/cfx_unowned_ptr.h"
 #include "core/fxcrt/fx_coordinates.h"
 
 class CFX_DIBitmap;
@@ -20,6 +22,7 @@ class CPDF_DeviceBuffer {
  public:
   CPDF_DeviceBuffer();
   ~CPDF_DeviceBuffer();
+
   bool Initialize(CPDF_RenderContext* pContext,
                   CFX_RenderDevice* pDevice,
                   FX_RECT* pRect,
@@ -30,11 +33,11 @@ class CPDF_DeviceBuffer {
   const CFX_Matrix* GetMatrix() const { return &m_Matrix; }
 
  private:
-  CFX_RenderDevice* m_pDevice;
-  CPDF_RenderContext* m_pContext;
-  FX_RECT m_Rect;
-  const CPDF_PageObject* m_pObject;
+  CFX_UnownedPtr<CFX_RenderDevice> m_pDevice;
+  CFX_UnownedPtr<CPDF_RenderContext> m_pContext;
+  CFX_UnownedPtr<const CPDF_PageObject> m_pObject;
   CFX_RetainPtr<CFX_DIBitmap> m_pBitmap;
+  FX_RECT m_Rect;
   CFX_Matrix m_Matrix;
 };