More better const-ness in CFX_CountRef<>

core/fpdfapi/fpdf_page/include/cpdf_path.h

Index: core/fpdfapi/fpdf_page/include/cpdf_path.h
diff --git a/core/fpdfapi/fpdf_page/include/cpdf_path.h b/core/fpdfapi/fpdf_page/include/cpdf_path.h
index 98de6960042098e5e635c0f7775837301b7002ce..e0ffa8c1dd2015c0f6a4c96b3488c577d8c6ff16 100644
--- a/core/fpdfapi/fpdf_page/include/cpdf_path.h
+++ b/core/fpdfapi/fpdf_page/include/cpdf_path.h
@@ -30,14 +30,14 @@ class CPDF_Path : public CFX_CountRef<CFX_PathData> {
     GetPrivateCopy()->Transform(pMatrix);
   }
   void Append(const CPDF_Path& other, const CFX_Matrix* pMatrix) {
-    GetObject()->Append(other.GetObject(), pMatrix);
+    GetPrivateCopy()->Append(other.GetObject(), pMatrix);
   }
 
   void AppendRect(FX_FLOAT left,
                   FX_FLOAT bottom,
                   FX_FLOAT right,
                   FX_FLOAT top) {
-    GetObject()->AppendRect(left, bottom, right, top);
+    GetPrivateCopy()->AppendRect(left, bottom, right, top);
   }
 };