Convert FWL_ERR into an enum class.

xfa/fwl/basewidget/ifwl_combobox.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_FWL_BASEWIDGET_IFWL_COMBOBOX_H_
 #define XFA_FWL_BASEWIDGET_IFWL_COMBOBOX_H_
 
 #include "xfa/fwl/basewidget/ifwl_listbox.h"
@@ skipping 62 matching lines @@
 class IFWL_ComboBoxDP : public IFWL_ListBoxDP {
  public:
   virtual FX_FLOAT GetListHeight(IFWL_Widget* pWidget) = 0;
 };
 
 class IFWL_ComboBox : public IFWL_Widget {
  public:
   static IFWL_ComboBox* Create(const CFWL_WidgetImpProperties& properties);
 
   int32_t GetCurSel();
-  FWL_ERR SetCurSel(int32_t iSel);
-  FWL_ERR SetEditText(const CFX_WideString& wsText);
+  FWL_Error SetCurSel(int32_t iSel);
+  FWL_Error SetEditText(const CFX_WideString& wsText);
   int32_t GetEditTextLength() const;
-  FWL_ERR GetEditText(CFX_WideString& wsText,
-                      int32_t nStart = 0,
-                      int32_t nCount = -1) const;
-  FWL_ERR SetEditSelRange(int32_t nStart, int32_t nCount = -1);
+  FWL_Error GetEditText(CFX_WideString& wsText,
+                        int32_t nStart = 0,
+                        int32_t nCount = -1) const;
+  FWL_Error SetEditSelRange(int32_t nStart, int32_t nCount = -1);
   int32_t GetEditSelRange(int32_t nIndex, int32_t& nStart);
   int32_t GetEditLimit();
-  FWL_ERR SetEditLimit(int32_t nLimit);
-  FWL_ERR EditDoClipboard(int32_t iCmd);
+  FWL_Error SetEditLimit(int32_t nLimit);
+  FWL_Error EditDoClipboard(int32_t iCmd);
   FX_BOOL EditRedo(const CFX_ByteStringC& bsRecord);
   FX_BOOL EditUndo(const CFX_ByteStringC& bsRecord);
   IFWL_ListBox* GetListBoxt();
   FX_BOOL AfterFocusShowDropList();
-  FX_ERR OpenDropDownList(FX_BOOL bActivate);
+  FWL_Error OpenDropDownList(FX_BOOL bActivate);
   FX_BOOL EditCanUndo();
   FX_BOOL EditCanRedo();
   FX_BOOL EditUndo();
   FX_BOOL EditRedo();
   FX_BOOL EditCanCopy();
   FX_BOOL EditCanCut();
   FX_BOOL EditCanSelectAll();
   FX_BOOL EditCopy(CFX_WideString& wsCopy);
   FX_BOOL EditCut(CFX_WideString& wsCut);
   FX_BOOL EditPaste(const CFX_WideString& wsPaste);
   FX_BOOL EditSelectAll();
   FX_BOOL EditDelete();
   FX_BOOL EditDeSelect();
-  FWL_ERR GetBBox(CFX_RectF& rect);
-  FWL_ERR EditModifyStylesEx(uint32_t dwStylesExAdded,
-                             uint32_t dwStylesExRemoved);
+  FWL_Error GetBBox(CFX_RectF& rect);
+  FWL_Error EditModifyStylesEx(uint32_t dwStylesExAdded,
+                               uint32_t dwStylesExRemoved);
 
  protected:
   IFWL_ComboBox();
 };
 
 #endif  // XFA_FWL_BASEWIDGET_IFWL_COMBOBOX_H_