Review and cleanup lint warnings.

fpdfsdk/src/javascript/app.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_SRC_JAVASCRIPT_APP_H_
 #define FPDFSDK_SRC_JAVASCRIPT_APP_H_
 
+#include <vector>
+
 #include "fpdfsdk/src/javascript/JS_Define.h"
 
 class CJS_Runtime;
-
-/* ---------------------------- TimerObj ---------------------------- */
-
 class CJS_Timer;
 
 class TimerObj : public CJS_EmbedObj {
  public:
   TimerObj(CJS_Object* pJSObject);
   ~TimerObj() override;
 
  public:
   void SetTimer(CJS_Timer* pTimer);
   CJS_Timer* GetTimer() const;
@@ skipping 177 matching lines @@
   JS_STATIC_METHOD(openDoc, app);
   JS_STATIC_METHOD(openFDF, app);
   JS_STATIC_METHOD(popUpMenuEx, app);
   JS_STATIC_METHOD(popUpMenu, app);
   JS_STATIC_METHOD(response, app);
   JS_STATIC_METHOD(setInterval, app);
   JS_STATIC_METHOD(setTimeOut, app);
 };
 
 #endif  // FPDFSDK_SRC_JAVASCRIPT_APP_H_