Merge to XFA: Use override in more classes in core/

core/include/fpdfapi/fpdf_resource.h

Index: core/include/fpdfapi/fpdf_resource.h
diff --git a/core/include/fpdfapi/fpdf_resource.h b/core/include/fpdfapi/fpdf_resource.h
index c41a306d54223db345492ca06629a371189210c2..5b6f3498fe060f69a7ddd5066dcbca14375b4eaf 100644
--- a/core/include/fpdfapi/fpdf_resource.h
+++ b/core/include/fpdfapi/fpdf_resource.h
@@ -664,7 +664,7 @@ class CPDF_TilingPattern : public CPDF_Pattern {
                      CPDF_Object* pPatternObj,
                      const CFX_AffineMatrix* parentMatrix);
 
-  virtual ~CPDF_TilingPattern();
+  ~CPDF_TilingPattern() override;
 
   FX_BOOL Load();
 
@@ -685,7 +685,7 @@ class CPDF_ShadingPattern : public CPDF_Pattern {
                       FX_BOOL bShading,
                       const CFX_AffineMatrix* parentMatrix);
 
-  virtual ~CPDF_ShadingPattern();
+  ~CPDF_ShadingPattern() override;
 
   CPDF_Object* m_pShadingObj;