Remove FWL_WGTHITTEST_* defines in favour of enum class.

xfa/fxfa/include/xfa_ffwidget.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_XFA_FFWIDGET_H_
 #define XFA_FXFA_INCLUDE_XFA_FFWIDGET_H_
 
 #include <vector>
 
 #include "core/fxcodec/include/fx_codec_def.h"
 #include "core/fxge/include/fx_ge.h"
 #include "xfa/fxfa/include/fxfa.h"
 #include "xfa/fxfa/parser/xfa_doclayout.h"
 
 class CXFA_FFPageView;
 class CXFA_FFDocView;
 class CXFA_FFDoc;
 class CXFA_FFApp;
+enum class FWL_WidgetHit;
 
 inline FX_FLOAT XFA_UnitPx2Pt(FX_FLOAT fPx, FX_FLOAT fDpi) {
   return fPx * 72.0f / fDpi;
 }
 #define XFA_FLOAT_PERCISION 0.001f
 enum XFA_WIDGETITEM {
   XFA_WIDGETITEM_Parent,
   XFA_WIDGETITEM_FirstChild,
   XFA_WIDGETITEM_NextSibling,
   XFA_WIDGETITEM_PrevSibling,
@@ skipping 46 matching lines @@
                                FX_FLOAT fy);
   virtual FX_BOOL OnRButtonDown(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
   virtual FX_BOOL OnRButtonUp(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
   virtual FX_BOOL OnRButtonDblClk(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
 
   virtual FX_BOOL OnSetFocus(CXFA_FFWidget* pOldWidget);
   virtual FX_BOOL OnKillFocus(CXFA_FFWidget* pNewWidget);
   virtual FX_BOOL OnKeyDown(uint32_t dwKeyCode, uint32_t dwFlags);
   virtual FX_BOOL OnKeyUp(uint32_t dwKeyCode, uint32_t dwFlags);
   virtual FX_BOOL OnChar(uint32_t dwChar, uint32_t dwFlags);
-  virtual uint32_t OnHitTest(FX_FLOAT fx, FX_FLOAT fy);
+  virtual FWL_WidgetHit OnHitTest(FX_FLOAT fx, FX_FLOAT fy);
   virtual FX_BOOL OnSetCursor(FX_FLOAT fx, FX_FLOAT fy);
   virtual FX_BOOL CanUndo() { return FALSE; }
   virtual FX_BOOL CanRedo() { return FALSE; }
   virtual FX_BOOL Undo() { return FALSE; }
   virtual FX_BOOL Redo() { return FALSE; }
   virtual FX_BOOL CanCopy() { return FALSE; }
   virtual FX_BOOL CanCut() { return FALSE; }
   virtual FX_BOOL CanPaste() { return FALSE; }
   virtual FX_BOOL CanSelectAll() { return FALSE; }
   virtual FX_BOOL CanDelete() { return CanCut(); }
@@ skipping 78 matching lines @@
 FX_BOOL XFA_IsCreateWidget(XFA_ELEMENT iType);
 #define XFA_DRAWBOX_ForceRound 1
 #define XFA_DRAWBOX_Lowered3D 2
 void XFA_DrawBox(CXFA_Box box,
                  CFX_Graphics* pGS,
                  const CFX_RectF& rtWidget,
                  CFX_Matrix* pMatrix,
                  uint32_t dwFlags = 0);
 
 #endif  // XFA_FXFA_INCLUDE_XFA_FFWIDGET_H_