Convert FWL_ERR into an enum class.

xfa/fwl/lightwidget/cfwl_picturebox.cpp

 // 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
 
 #include "xfa/fwl/lightwidget/cfwl_picturebox.h"
 
 #include <memory>
 
 CFWL_PictureBox* CFWL_PictureBox::Create() {
   return new CFWL_PictureBox;
 }
 
-FWL_ERR CFWL_PictureBox::Initialize(const CFWL_WidgetProperties* pProperties) {
+FWL_Error CFWL_PictureBox::Initialize(
+    const CFWL_WidgetProperties* pProperties) {
   if (m_pIface)
-    return FWL_ERR_Indefinite;
+    return FWL_Error::Indefinite;
   if (pProperties) {
     *m_pProperties = *pProperties;
   }
   std::unique_ptr<IFWL_PictureBox> pPictureBox(IFWL_PictureBox::Create(
       m_pProperties->MakeWidgetImpProperties(&m_PictureBoxDP), nullptr));
-  FWL_ERR ret = pPictureBox->Initialize();
-  if (ret != FWL_ERR_Succeeded) {
+  FWL_Error ret = pPictureBox->Initialize();
+  if (ret != FWL_Error::Succeeded) {
     return ret;
   }
   m_pIface = pPictureBox.release();
   CFWL_Widget::Initialize();
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
 
 CFX_DIBitmap* CFWL_PictureBox::GetPicture() {
   return m_PictureBoxDP.m_pBitmap;
 }
 
-FWL_ERR CFWL_PictureBox::SetPicture(CFX_DIBitmap* pBitmap) {
+FWL_Error CFWL_PictureBox::SetPicture(CFX_DIBitmap* pBitmap) {
   m_PictureBoxDP.m_pBitmap = pBitmap;
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
 
 FX_FLOAT CFWL_PictureBox::GetRotation() {
   return m_PictureBoxDP.m_fRotation;
 }
 
-FWL_ERR CFWL_PictureBox::SetRotation(FX_FLOAT fRotation) {
+FWL_Error CFWL_PictureBox::SetRotation(FX_FLOAT fRotation) {
   m_PictureBoxDP.m_fRotation = fRotation;
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
 
 int32_t CFWL_PictureBox::GetFlipMode() {
   return m_PictureBoxDP.GetFlipMode(m_pIface);
 }
 
-FWL_ERR CFWL_PictureBox::SetFlipMode(int32_t iFlipMode) {
+FWL_Error CFWL_PictureBox::SetFlipMode(int32_t iFlipMode) {
   m_PictureBoxDP.m_iFlipMode = iFlipMode;
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
 
 int32_t CFWL_PictureBox::GetOpacity() {
   return m_PictureBoxDP.GetOpacity(m_pIface);
 }
 
-FWL_ERR CFWL_PictureBox::SetOpacity(int32_t iOpacity) {
+FWL_Error CFWL_PictureBox::SetOpacity(int32_t iOpacity) {
   m_PictureBoxDP.m_iOpacity = iOpacity;
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
 
-FWL_ERR CFWL_PictureBox::GetScale(FX_FLOAT& fScaleX, FX_FLOAT& fScaleY) {
+FWL_Error CFWL_PictureBox::GetScale(FX_FLOAT& fScaleX, FX_FLOAT& fScaleY) {
   CFX_Matrix matrix;
   m_PictureBoxDP.GetMatrix(m_pIface, matrix);
   matrix.Scale(fScaleX, fScaleY);
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
 
-FWL_ERR CFWL_PictureBox::SetScale(FX_FLOAT fScaleX, FX_FLOAT fScaleY) {
+FWL_Error CFWL_PictureBox::SetScale(FX_FLOAT fScaleX, FX_FLOAT fScaleY) {
   m_PictureBoxDP.m_fScaleX = fScaleX;
   m_PictureBoxDP.m_fScaleY = fScaleY;
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
 
-FWL_ERR CFWL_PictureBox::GetOffset(FX_FLOAT& fx, FX_FLOAT& fy) {
+FWL_Error CFWL_PictureBox::GetOffset(FX_FLOAT& fx, FX_FLOAT& fy) {
   CFX_Matrix matrix;
   m_PictureBoxDP.GetMatrix(m_pIface, matrix);
   fx = matrix.e;
   fy = matrix.f;
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
 
-FWL_ERR CFWL_PictureBox::SetOffset(FX_FLOAT fx, FX_FLOAT fy) {
+FWL_Error CFWL_PictureBox::SetOffset(FX_FLOAT fx, FX_FLOAT fy) {
   m_PictureBoxDP.m_fOffSetX = fx;
   m_PictureBoxDP.m_fOffSetY = fy;
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
 
 CFWL_PictureBox::CFWL_PictureBox() {}
 
 CFWL_PictureBox::~CFWL_PictureBox() {}
 
-FWL_ERR CFWL_PictureBox::CFWL_PictureBoxDP::GetCaption(
+FWL_Error CFWL_PictureBox::CFWL_PictureBoxDP::GetCaption(
     IFWL_Widget* pWidget,
     CFX_WideString& wsCaption) {
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
 
 CFX_DIBitmap* CFWL_PictureBox::CFWL_PictureBoxDP::GetPicture(
     IFWL_Widget* pWidget) {
   return m_pBitmap;
 }
 
 CFX_DIBitmap* CFWL_PictureBox::CFWL_PictureBoxDP::GetErrorPicture(
     IFWL_Widget* pWidget) {
   return m_pBitmap;
 }
 
 CFX_DIBitmap* CFWL_PictureBox::CFWL_PictureBoxDP::GetInitialPicture(
     IFWL_Widget* pWidget) {
   return m_pBitmap;
 }
 
 int32_t CFWL_PictureBox::CFWL_PictureBoxDP::GetOpacity(IFWL_Widget* pWidget) {
   return m_iOpacity;
 }
 
-FWL_ERR CFWL_PictureBox::CFWL_PictureBoxDP::GetMatrix(IFWL_Widget* pWidget,
-                                                      CFX_Matrix& matrix) {
+FWL_Error CFWL_PictureBox::CFWL_PictureBoxDP::GetMatrix(IFWL_Widget* pWidget,
+                                                        CFX_Matrix& matrix) {
   CFX_RectF rect;
   pWidget->GetClientRect(rect);
   FX_FLOAT fLen = rect.width / 2;
   FX_FLOAT fWid = rect.height / 2;
   matrix.SetIdentity();
   matrix.Translate(-fLen, -fWid);
   matrix.Rotate(m_fRotation);
   matrix.Translate(fLen, fWid);
   matrix.Scale(m_fScaleX, m_fScaleY);
   matrix.Translate(m_fOffSetX, m_fOffSetY);
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
 
 int32_t CFWL_PictureBox::CFWL_PictureBoxDP::GetFlipMode(IFWL_Widget* pWidget) {
   return m_iFlipMode;
 }