Use override in more classes in fpdfsdk/

fpdfsdk/src/javascript/JS_Context.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_ResMgr.h"
 #include "../../include/javascript/JS_Context.h"
 #include "../../include/javascript/JS_EventHandler.h"
 #include "../../include/javascript/JS_Runtime.h"
 #include "../../include/javascript/resource.h"
 
 /* -------------------------- CJS_Context -------------------------- */
 
 CJS_Context::CJS_Context(CJS_Runtime* pRuntime)
     : m_pRuntime(pRuntime), m_bBusy(FALSE), m_bMsgBoxEnable(TRUE) {
   m_pEventHandler = new CJS_EventHandler(this);
 }
 
-CJS_Context::~CJS_Context(void) {
+CJS_Context::~CJS_Context() {
   delete m_pEventHandler;
 }
 
 CPDFSDK_Document* CJS_Context::GetReaderDocument() {
   ASSERT(m_pRuntime != NULL);
 
   return m_pRuntime->GetReaderDocument();
 }
 
 CPDFDoc_Environment* CJS_Context::GetReaderApp() {
@@ skipping 316 matching lines @@
 void CJS_Context::OnBatchExec(CPDFSDK_Document* pTarget) {
   ASSERT(m_pEventHandler != NULL);
   m_pEventHandler->OnBatchExec(pTarget);
 }
 
 void CJS_Context::OnMenu_Exec(CPDFSDK_Document* pTarget,
                               const CFX_WideString& strTargetName) {
   ASSERT(m_pEventHandler != NULL);
   m_pEventHandler->OnMenu_Exec(pTarget, strTargetName);
 }