Remove no-op ShowFileDialog(s).

xfa/fxfa/include/fxfa.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 XFA_FXFA_INCLUDE_FXFA_H_
 #define XFA_FXFA_INCLUDE_FXFA_H_
 
 #include <vector>
@@ skipping 241 matching lines @@
    * @param[in] wsData            the data being uploaded.
    * @param[in] wsEncode      the encode of data including UTF-8, UTF-16,
    * ISO8859-1, any recognized [IANA]character encoding
    * @return TRUE Server permitted the post request, FALSE otherwise.
    */
   virtual FX_BOOL PutRequestURL(const CFX_WideStringC& wsURL,
                                 const CFX_WideStringC& wsData,
                                 const CFX_WideStringC& wsEncode) = 0;
 
   virtual void LoadString(int32_t iStringID, CFX_WideString& wsString) = 0;
-  virtual FX_BOOL ShowFileDialog(const CFX_WideStringC& wsTitle,
-                                 const CFX_WideStringC& wsFilter,
-                                 CFX_WideStringArray& wsPathArr,
-                                 FX_BOOL bOpen = TRUE) = 0;
   virtual IFWL_AdapterTimerMgr* GetTimerMgr() = 0;
 };
 
 #define XFA_INVALIDATE_AllPages 0x00000000
 #define XFA_INVALIDATE_CurrentPage 0x00000001
 #define XFA_PRINTOPT_ShowDialog 0x00000001
 #define XFA_PRINTOPT_CanCancel 0x00000002
 #define XFA_PRINTOPT_ShrinkPage 0x00000004
 #define XFA_PRINTOPT_AsImage 0x00000008
 #define XFA_PRINTOPT_ReverseOrder 0x00000010
@@ skipping 265 matching lines @@
   virtual CXFA_FFWidget* MoveToNext() = 0;
   virtual CXFA_FFWidget* MoveToPrevious() = 0;
   virtual CXFA_FFWidget* GetCurrentWidget() = 0;
   virtual FX_BOOL SetCurrentWidget(CXFA_FFWidget* hWidget) = 0;
 
  protected:
   ~IXFA_WidgetIterator() {}
 };
 
 #endif  // XFA_FXFA_INCLUDE_FXFA_H_