Use stdint.h types throughout PDFium.

fpdfsdk/include/pdfwindow/PWL_Caret.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_INCLUDE_PDFWINDOW_PWL_CARET_H_
 #define FPDFSDK_INCLUDE_PDFWINDOW_PWL_CARET_H_
 
 #include "PWL_Wnd.h"
@@ skipping 28 matching lines @@
         void                                            SetInvalidRect(CPDF_Rect rc) {m_rcInvalid = rc;}
 
 private:
         void                                            GetCaretApp(CFX_ByteTextBuf & sAppStream,const CPDF_Point & ptOffset);
         CPDF_Rect                                       GetCaretRect() const;
 
         FX_BOOL                                         m_bFlash;
         CPDF_Point                                      m_ptHead;
         CPDF_Point                                      m_ptFoot;
         FX_FLOAT                                        m_fWidth;
-        FX_INT32                                        m_nDelay;
+        int32_t                                 m_nDelay;
         CPDF_Rect                                       m_rcInvalid;
 };
 
 #endif  // FPDFSDK_INCLUDE_PDFWINDOW_PWL_CARET_H_