Merge to XFA: Use stdint.h types throughout PDFium.

xfa/include/fwl/core/fwl_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 _FWL_APP_H
 #define _FWL_APP_H
 class IFWL_NoteThread;
 class IFWL_AdapterNative;
 class IFWL_Widget;
 class IFWL_WidgetMgr;
 class IFWL_ThemeProvider;
 class IFWL_AdapterWidgetMgr;
 class IFWL_App;
 class IFWL_App : public IFWL_NoteThread
 {
 public:
     static IFWL_App* Create(IFWL_AdapterNative *pAdapter);
     virtual FWL_ERR                             Initialize() = 0;
     virtual FWL_ERR                             Finalize() = 0;
     virtual IFWL_AdapterNative* GetAdapterNative() = 0;
     virtual IFWL_WidgetMgr*             GetWidgetMgr() = 0;
     virtual FWL_ERR                             SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) = 0;
-    virtual FWL_ERR                             Exit(FX_INT32 iExitCode = 0) = 0;
+    virtual FWL_ERR                             Exit(int32_t iExitCode = 0) = 0;
 };
 IFWL_App* FWL_GetApp();
 void FWL_SetApp(IFWL_App *pApp);
 IFWL_AdapterNative*     FWL_GetAdapterNative();
 IFWL_AdapterWidgetMgr* FWL_GetAdapterWidgetMgr();
 IFWL_ThemeProvider*     FWL_GetThemeProvider();
 extern FWL_ERR FWL_Execute(FX_WSTR wsExecutable, FX_WSTR wsParameters);
 FWL_ERR FWL_SetFullScreen(IFWL_Widget *pWidget, FX_BOOL bFullScreen);
 FX_BOOL FWL_AppIsActived();
 #endif