3 files changed, 5 insertions, 5 deletions
diff --git a/core/fpdfapi/fpdf_page/include/cpdf_colorspace.h b/core/fpdfapi/fpdf_page/include/cpdf_colorspace.h
index 48ace36835..8bb6c57260 100644
--- a/core/fpdfapi/fpdf_page/include/cpdf_colorspace.h
+++ b/core/fpdfapi/fpdf_page/include/cpdf_colorspace.h
@@ -79,7 +79,7 @@ class CPDF_ColorSpace {
                                   FX_BOOL bTransMask = FALSE) const;
 
   CPDF_Array*& GetArray() { return m_pArray; }
-  virtual CPDF_ColorSpace* GetBaseCS() const { return NULL; }
+  virtual CPDF_ColorSpace* GetBaseCS() const { return nullptr; }
 
   virtual void EnableStdConversion(FX_BOOL bEnabled);
 
diff --git a/core/fpdfapi/fpdf_page/include/cpdf_form.h b/core/fpdfapi/fpdf_page/include/cpdf_form.h
index d36a976176..92acbca25a 100644
--- a/core/fpdfapi/fpdf_page/include/cpdf_form.h
+++ b/core/fpdfapi/fpdf_page/include/cpdf_form.h
@@ -21,7 +21,7 @@ class CPDF_Form : public CPDF_PageObjectHolder {
   CPDF_Form(CPDF_Document* pDocument,
             CPDF_Dictionary* pPageResources,
             CPDF_Stream* pFormStream,
-            CPDF_Dictionary* pParentResources = NULL);
+            CPDF_Dictionary* pParentResources = nullptr);
 
   ~CPDF_Form();
 
diff --git a/core/fpdfapi/fpdf_page/include/cpdf_image.h b/core/fpdfapi/fpdf_page/include/cpdf_image.h
index 48349deb3b..f475e53478 100644
--- a/core/fpdfapi/fpdf_page/include/cpdf_image.h
+++ b/core/fpdfapi/fpdf_page/include/cpdf_image.h
@@ -39,7 +39,7 @@ class CPDF_Image {
   CPDF_Dictionary* GetInlineDict() const { return m_pInlineDict; }
   CPDF_Stream* GetStream() const { return m_pStream; }
   CPDF_Dictionary* GetDict() const {
-    return m_pStream ? m_pStream->GetDict() : NULL;
+    return m_pStream ? m_pStream->GetDict() : nullptr;
   }
   CPDF_Dictionary* GetOC() const { return m_pOC; }
   CPDF_Document* GetDocument() const { return m_pDocument; }
@@ -51,8 +51,8 @@ class CPDF_Image {
   FX_BOOL IsMask() const { return m_bIsMask; }
   FX_BOOL IsInterpol() const { return m_bInterpolate; }
 
-  CFX_DIBSource* LoadDIBSource(CFX_DIBSource** ppMask = NULL,
-                               uint32_t* pMatteColor = NULL,
+  CFX_DIBSource* LoadDIBSource(CFX_DIBSource** ppMask = nullptr,
+                               uint32_t* pMatteColor = nullptr,
                                FX_BOOL bStdCS = FALSE,
                                uint32_t GroupFamily = 0,
                                FX_BOOL bLoadMask = FALSE) const;