Use override in more classes in fpdfsdk/

fpdfsdk/src/javascript/app.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 "../../../third_party/base/nonstd_unique_ptr.h"
 #include "../../include/javascript/JavaScript.h"
 #include "../../include/javascript/IJavaScript.h"
 #include "../../include/javascript/JS_Define.h"
@@ skipping 94 matching lines @@
 JS_STATIC_METHOD_ENTRY(response)
 JS_STATIC_METHOD_ENTRY(setInterval)
 JS_STATIC_METHOD_ENTRY(setTimeOut)
 END_JS_STATIC_METHOD()
 
 IMPLEMENT_JS_CLASS(CJS_App, app)
 
 app::app(CJS_Object* pJSObject)
     : CJS_EmbedObj(pJSObject), m_bCalculate(true), m_bRuntimeHighLight(false) {}
 
-app::~app(void) {
+app::~app() {
   for (int i = 0, sz = m_aTimer.GetSize(); i < sz; i++)
     delete m_aTimer[i];
 
   m_aTimer.RemoveAll();
 }
 
 FX_BOOL app::activeDocs(IFXJS_Context* cc,
                         CJS_PropValue& vp,
                         CFX_WideString& sError) {
   if (!vp.IsGetting())
@@ skipping 730 matching lines @@
                    CFX_WideString& sError) {
   return FALSE;
 }
 
 FX_BOOL app::execDialog(IFXJS_Context* cc,
                         const CJS_Parameters& params,
                         CJS_Value& vRet,
                         CFX_WideString& sError) {
   return TRUE;
 }