1 files changed, 8 insertions, 0 deletions
diff --git a/core/fpdfapi/fpdf_page/cpdf_shadingpattern.cpp b/core/fpdfapi/fpdf_page/cpdf_shadingpattern.cpp
index 1636e17f4f..e2205f956d 100644
--- a/core/fpdfapi/fpdf_page/cpdf_shadingpattern.cpp
+++ b/core/fpdfapi/fpdf_page/cpdf_shadingpattern.cpp
@@ -50,6 +50,14 @@ CPDF_ShadingPattern::~CPDF_ShadingPattern() {
     m_pDocument->GetPageData()->ReleaseColorSpace(pCS->GetArray());
 }
 
+CPDF_TilingPattern* CPDF_ShadingPattern::AsTilingPattern() {
+  return nullptr;
+}
+
+CPDF_ShadingPattern* CPDF_ShadingPattern::AsShadingPattern() {
+  return this;
+}
+
 bool CPDF_ShadingPattern::Load() {
   if (m_ShadingType != kInvalidShading)
     return TRUE;