Convert FWL_ERR into an enum class.

xfa/fwl/core/cfwl_event.h

 // Copyright 2016 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_CORE_CFWL_EVENT_H_
 #define XFA_FWL_CORE_CFWL_EVENT_H_
 
 #include "core/fxcrt/include/fx_coordinates.h"
@@ skipping 52 matching lines @@
 
 class CFX_Graphics;
 class IFWL_Widget;
 
 class CFWL_Event {
  public:
   CFWL_Event()
       : m_pSrcTarget(nullptr), m_pDstTarget(nullptr), m_dwRefCount(1) {}
   virtual ~CFWL_Event() {}
 
-  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 CFWL_EventType GetClassID() const { return CFWL_EventType::None; }
 
   uint32_t Release() {
     m_dwRefCount--;
     uint32_t dwRefCount = m_dwRefCount;
     if (!m_dwRefCount)
       delete this;
     return dwRefCount;
   }
 
   IFWL_Widget* m_pSrcTarget;
   IFWL_Widget* m_pDstTarget;
 
  private:
   uint32_t m_dwRefCount;
 };
 
-#define BEGIN_FWL_EVENT_DEF(classname, eventType)                 \
-  class classname : public CFWL_Event {                           \
-   public:                                                        \
-    classname() : CFWL_Event() {}                                 \
-    virtual FWL_ERR GetClassName(CFX_WideString& wsClass) const { \
-      wsClass = L## #classname;                                   \
-      return FWL_ERR_Succeeded;                                   \
-    }                                                             \
+#define BEGIN_FWL_EVENT_DEF(classname, eventType)                   \
+  class classname : public CFWL_Event {                             \
+   public:                                                          \
+    classname() : CFWL_Event() {}                                   \
+    virtual FWL_Error GetClassName(CFX_WideString& wsClass) const { \
+      wsClass = L## #classname;                                     \
+      return FWL_Error::Succeeded;                                  \
+    }                                                               \
     virtual CFWL_EventType GetClassID() const { return eventType; }
 
 #define END_FWL_EVENT_DEF \
   }                       \
   ;  // NOLINT
 
 BEGIN_FWL_EVENT_DEF(CFWL_EvtMouse, CFWL_EventType::Mouse)
 FX_FLOAT m_fx;
 FX_FLOAT m_fy;
 uint32_t m_dwFlags;
@@ skipping 53 matching lines @@
 BEGIN_FWL_EVENT_DEF(CFWL_EvtSizeChanged, CFWL_EventType::SizeChanged)
 IFWL_Widget* m_pWidget;
 CFX_RectF m_rtOld;
 CFX_RectF m_rtNew;
 END_FWL_EVENT_DEF
 
 BEGIN_FWL_EVENT_DEF(CFWL_EvtIdle, CFWL_EventType::Idle)
 END_FWL_EVENT_DEF
 
 #endif  // XFA_FWL_CORE_CFWL_EVENT_H_