Use override in more classes in fpdfsdk/

fpdfsdk/include/javascript/Field.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_JAVASCRIPT_FIELD_H_
 #define FPDFSDK_INCLUDE_JAVASCRIPT_FIELD_H_
 
 #include <string>  // For std::wstring.
@@ skipping 71 matching lines @@
   CFX_WideString widestring;
   CPDF_Rect rect;
   CPWL_Color color;
   CFX_DWordArray wordarray;
   CJS_WideStringArray widestringarray;
 };
 
 class Field : public CJS_EmbedObj {
  public:
   Field(CJS_Object* pJSObject);
-  virtual ~Field(void);
+  ~Field() override;
 
   FX_BOOL alignment(IFXJS_Context* cc,
                     CJS_PropValue& vp,
                     CFX_WideString& sError);
   FX_BOOL borderStyle(IFXJS_Context* cc,
                       CJS_PropValue& vp,
                       CFX_WideString& sError);
   FX_BOOL buttonAlignX(IFXJS_Context* cc,
                        CJS_PropValue& vp,
                        CFX_WideString& sError);
@@ skipping 423 matching lines @@
   CFX_WideString m_FieldName;
   int m_nFormControlIndex;
   FX_BOOL m_bCanSet;
 
   FX_BOOL m_bDelay;
   v8::Isolate* m_isolate;
 };
 
 class CJS_Field : public CJS_Object {
  public:
-  CJS_Field(JSFXObject pObject) : CJS_Object(pObject){};
-  virtual ~CJS_Field(void){};
+  CJS_Field(JSFXObject pObject) : CJS_Object(pObject) {}
+  ~CJS_Field(void) override {}
 
-  virtual FX_BOOL InitInstance(IFXJS_Context* cc);
+  FX_BOOL InitInstance(IFXJS_Context* cc) override;
 
   DECLARE_JS_CLASS(CJS_Field);
 
   JS_STATIC_PROP(alignment, Field);
   JS_STATIC_PROP(borderStyle, Field);
   JS_STATIC_PROP(buttonAlignX, Field);
   JS_STATIC_PROP(buttonAlignY, Field);
   JS_STATIC_PROP(buttonFitBounds, Field);
   JS_STATIC_PROP(buttonPosition, Field);
   JS_STATIC_PROP(buttonScaleHow, Field);
@@ skipping 65 matching lines @@
   JS_STATIC_METHOD(setLock, Field);
   JS_STATIC_METHOD(signatureGetModifications, Field);
   JS_STATIC_METHOD(signatureGetSeedValue, Field);
   JS_STATIC_METHOD(signatureInfo, Field);
   JS_STATIC_METHOD(signatureSetSeedValue, Field);
   JS_STATIC_METHOD(signatureSign, Field);
   JS_STATIC_METHOD(signatureValidate, Field);
 };
 
 #endif  // FPDFSDK_INCLUDE_JAVASCRIPT_FIELD_H_