Use override in more classes in fpdfsdk/

fpdfsdk/src/javascript/util.cpp

 // 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
 
 #include "../../include/javascript/JavaScript.h"
 #include "../../include/javascript/IJavaScript.h"
 #include "../../include/javascript/JS_Define.h"
 #include "../../include/javascript/JS_Object.h"
@@ skipping 30 matching lines @@
 JS_STATIC_METHOD_ENTRY(printf)
 JS_STATIC_METHOD_ENTRY(printx)
 JS_STATIC_METHOD_ENTRY(scand)
 JS_STATIC_METHOD_ENTRY(byteToChar)
 END_JS_STATIC_METHOD()
 
 IMPLEMENT_JS_CLASS(CJS_Util, util)
 
 util::util(CJS_Object* pJSObject) : CJS_EmbedObj(pJSObject) {}
 
-util::~util(void) {}
+util::~util() {
+}
 
 struct stru_TbConvert {
   const FX_WCHAR* lpszJSMark;
   const FX_WCHAR* lpszCppMark;
 };
 
 const stru_TbConvert fcTable[] = {
     {L"mmmm", L"%B"},
     {L"mmm", L"%b"},
     {L"mm", L"%m"},
@@ skipping 495 matching lines @@
   int iSize = params.size();
   if (iSize == 0)
     return FALSE;
   int nByte = params[0].ToInt();
   unsigned char cByte = (unsigned char)nByte;
   CFX_WideString csValue;
   csValue.Format(L"%c", cByte);
   vRet = csValue.c_str();
   return TRUE;
 }