Fix XFA compilation noise, part 1.

fpdfsdk/include/fsdk_baseform.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef FPDFSDK_INCLUDE_FSDK_BASEFORM_H_
 #define FPDFSDK_INCLUDE_FSDK_BASEFORM_H_
 
 #if _FX_OS_ == _FX_ANDROID_
@@ skipping 175 matching lines @@
   CPWL_Color GetFillPWLColor() const;
 
   void AddImageToAppearance(const CFX_ByteString& sAPType, CPDF_Stream* pImage);
   void RemoveAppearance(const CFX_ByteString& sAPType);
 
  public:
   FX_BOOL IsWidgetAppearanceValid(CPDF_Annot::AppearanceMode mode);
   void DrawAppearance(CFX_RenderDevice* pDevice,
                       const CPDF_Matrix* pUser2Device,
                       CPDF_Annot::AppearanceMode mode,
-                      const CPDF_RenderOptions* pOptions);
+                      const CPDF_RenderOptions* pOptions) override;
 
- public:
   FX_BOOL HitTest(FX_FLOAT pageX, FX_FLOAT pageY);
 
   CPDFSDK_InterForm* m_pInterForm;
   FX_BOOL m_bAppModified;
   int32_t m_nAppAge;
   int32_t m_nValueAge;
 
   mutable IXFA_Widget* m_hMixXFAWidget;
   mutable IXFA_WidgetHandler* m_pWidgetHandler;
 };
 
 class CPDFSDK_XFAWidget : public CPDFSDK_Annot {
  public:
   CPDFSDK_XFAWidget(IXFA_Widget* pAnnot,
                     CPDFSDK_PageView* pPageView,
                     CPDFSDK_InterForm* pInterForm);
-  virtual ~CPDFSDK_XFAWidget() {}
+  ~CPDFSDK_XFAWidget() override {}
 
- public:
-  virtual FX_BOOL IsXFAField();
-  virtual IXFA_Widget* GetXFAWidget() { return m_hXFAWidget; }
+  FX_BOOL IsXFAField() override;
+  IXFA_Widget* GetXFAWidget() const override { return m_hXFAWidget; }
+  CFX_ByteString GetType() const override;
+  CFX_ByteString GetSubType() const override { return ""; }
+  CFX_FloatRect GetRect() const override;
 
-  virtual CFX_ByteString GetType() const;
-  virtual CFX_ByteString GetSubType() const { return ""; }
-
-  virtual CFX_FloatRect GetRect();
-
- public:
   CPDFSDK_InterForm* GetInterForm() { return m_pInterForm; }
 
  private:
   CPDFSDK_InterForm* m_pInterForm;
   IXFA_Widget* m_hXFAWidget;
 };
 
 #define CPDFSDK_XFAWidgetMap \
   CFX_MapPtrTemplate<IXFA_Widget*, CPDFSDK_XFAWidget*>
 #define CPDFSDK_FieldSynchronizeMap CFX_MapPtrTemplate<CPDF_FormField*, int>
@@ skipping 139 matching lines @@
   static CPDF_Rect GetAnnotRect(CPDFSDK_Annot* pAnnot);
 
   CPDFSDK_PageView* m_pPageView;
   CFX_ByteString m_sType;
   CFX_ByteString m_sSubType;
   int m_nTabs;
   CPDFSDK_Annots m_Annots;
 };
 
 #endif  // FPDFSDK_INCLUDE_FSDK_BASEFORM_H_