Convert FWL_ERR into an enum class.

xfa/fxfa/app/xfa_fwltheme.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_APP_XFA_FWLTHEME_H_
 #define XFA_FXFA_APP_XFA_FWLTHEME_H_
 
 #include "xfa/fwl/core/ifwl_themeprovider.h"
 #include "xfa/fwl/theme/cfwl_barcodetp.h"
 #include "xfa/fwl/theme/cfwl_carettp.h"
 #include "xfa/fwl/theme/cfwl_checkboxtp.h"
 #include "xfa/fwl/theme/cfwl_comboboxtp.h"
 #include "xfa/fwl/theme/cfwl_datetimepickertp.h"
 #include "xfa/fwl/theme/cfwl_edittp.h"
 #include "xfa/fwl/theme/cfwl_listboxtp.h"
 #include "xfa/fwl/theme/cfwl_monthcalendartp.h"
 #include "xfa/fwl/theme/cfwl_pictureboxtp.h"
 #include "xfa/fwl/theme/cfwl_pushbuttontp.h"
 #include "xfa/fwl/theme/cfwl_scrollbartp.h"
 #include "xfa/fwl/theme/cfwl_widgettp.h"
 #include "xfa/fxfa/include/xfa_ffapp.h"
 
 class CXFA_FWLTheme : public IFWL_ThemeProvider {
  public:
   CXFA_FWLTheme(CXFA_FFApp* pApp);
   virtual ~CXFA_FWLTheme();
-  virtual FWL_ERR Release() {
+  virtual FWL_Error Release() {
     delete this;
-    return FWL_ERR_Succeeded;
+    return FWL_Error::Succeeded;
   }
   virtual IFWL_Widget* Retain() { return NULL; }
-  virtual FWL_ERR GetClassName(CFX_WideString& wsClass) const {
-    return FWL_ERR_Succeeded;
+  virtual FWL_Error GetClassName(CFX_WideString& wsClass) const {
+    return FWL_Error::Succeeded;
   }
   virtual uint32_t GetHashCode() const { return 0; }
-  virtual FWL_ERR Initialize();
-  virtual FWL_ERR Finalize();
+  virtual FWL_Error Initialize();
+  virtual FWL_Error Finalize();
   virtual FX_BOOL IsValidWidget(IFWL_Widget* pWidget);
   virtual uint32_t GetThemeID(IFWL_Widget* pWidget);
   virtual uint32_t SetThemeID(IFWL_Widget* pWidget,
                               uint32_t dwThemeID,
                               FX_BOOL bChildren = TRUE);
   virtual FX_BOOL DrawBackground(CFWL_ThemeBackground* pParams);
   virtual FX_BOOL DrawText(CFWL_ThemeText* pParams);
   virtual void* GetCapacity(CFWL_ThemePart* pThemePart,
                             CFWL_WidgetCapacity dwCapacity);
   virtual FX_BOOL IsCustomizedLayout(IFWL_Widget* pWidget);
-  virtual FWL_ERR GetPartRect(CFWL_ThemePart* pThemePart);
+  virtual FWL_Error GetPartRect(CFWL_ThemePart* pThemePart);
   virtual FX_BOOL IsInPart(CFWL_ThemePart* pThemePart,
                            FX_FLOAT fx,
                            FX_FLOAT fy);
 
   virtual FX_BOOL CalcTextRect(CFWL_ThemeText* pParams, CFX_RectF& rect);
-  virtual FWL_ERR GetThemeMatrix(IFWL_Widget* pWidget, CFX_Matrix& matrix) {
-    return FWL_ERR_Succeeded;
+  virtual FWL_Error GetThemeMatrix(IFWL_Widget* pWidget, CFX_Matrix& matrix) {
+    return FWL_Error::Succeeded;
   }
-  virtual FWL_ERR SetThemeMatrix(IFWL_Widget* pWidget,
-                                 const CFX_Matrix& matrix) {
-    return FWL_ERR_Succeeded;
+  virtual FWL_Error SetThemeMatrix(IFWL_Widget* pWidget,
+                                   const CFX_Matrix& matrix) {
+    return FWL_Error::Succeeded;
   }
-  virtual FWL_ERR GetPartRect(CFWL_ThemePart* pThemePart, CFX_RectF& rtPart) {
-    return FWL_ERR_Succeeded;
+  virtual FWL_Error GetPartRect(CFWL_ThemePart* pThemePart, CFX_RectF& rtPart) {
+    return FWL_Error::Succeeded;
   }
 
  protected:
   CFWL_WidgetTP* GetTheme(IFWL_Widget* pWidget);
   CFWL_CheckBoxTP* m_pCheckBoxTP;
   CFWL_ListBoxTP* m_pListBoxTP;
   CFWL_PictureBoxTP* m_pPictureBoxTP;
   CFWL_ScrollBarTP* m_pSrollBarTP;
   CFWL_EditTP* m_pEditTP;
   CFWL_ComboBoxTP* m_pComboBoxTP;
@@ skipping 26 matching lines @@
 class CXFA_FWLEditTP : public CFWL_EditTP {
  public:
   CXFA_FWLEditTP();
   virtual ~CXFA_FWLEditTP();
 
  public:
   virtual FX_BOOL DrawBackground(CFWL_ThemeBackground* pParams);
 };
 
 #endif  // XFA_FXFA_APP_XFA_FWLTHEME_H_