1 files changed, 3 insertions, 1 deletions
diff --git a/core/fpdfapi/page/cpdf_function.h b/core/fpdfapi/page/cpdf_function.h
index 615c6a68d4..82a3a54327 100644
--- a/core/fpdfapi/page/cpdf_function.h
+++ b/core/fpdfapi/page/cpdf_function.h
@@ -55,12 +55,14 @@ class CPDF_Function {
                                              std::set<CPDF_Object*>* pVisited);
   bool Init(CPDF_Object* pObj, std::set<CPDF_Object*>* pVisited);
   virtual bool v_Init(CPDF_Object* pObj, std::set<CPDF_Object*>* pVisited) = 0;
-  virtual bool v_Call(float* inputs, float* results) const = 0;
+  virtual bool v_Call(const float* inputs, float* results) const = 0;
 
   uint32_t m_nInputs;
   uint32_t m_nOutputs;
   float* m_pDomains;
   float* m_pRanges;
+
+ private:
   const Type m_Type;
 };