Remove IWFL_WidgetMgr in favor of CFWL_WidgetMgr

xfa/fwl/core/ifwl_widgetmgr.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_CORE_IFWL_WIDGETMGR_H_
-#define XFA_FWL_CORE_IFWL_WIDGETMGR_H_
-
-#include "core/fxcrt/include/fx_system.h"
-#include "xfa/fwl/core/fwl_error.h"
-#include "core/fxcrt/include/fx_coordinates.h"
-
-class CFX_WideString;
-class CFX_Matrix;
-class IFWL_Widget;
-
-enum FWL_WGTRELATION {
-  FWL_WGTRELATION_Parent = 0,
-  FWL_WGTRELATION_Owner,
-  FWL_WGTRELATION_FirstSibling,
-  FWL_WGTRELATION_PriorSibling,
-  FWL_WGTRELATION_NextSibling,
-  FWL_WGTRELATION_LastSibling,
-  FWL_WGTRELATION_FirstChild,
-  FWL_WGTRELATION_LastChild,
-  FWL_WGTRELATION_SystemForm
-};
-
-class IFWL_WidgetMgr {
- public:
-  virtual ~IFWL_WidgetMgr() {}
-  virtual int32_t CountWidgets(IFWL_Widget* pParent = NULL) = 0;
-  virtual IFWL_Widget* GetWidget(int32_t nIndex,
-                                 IFWL_Widget* pParent = NULL) = 0;
-  virtual IFWL_Widget* GetWidget(IFWL_Widget* pWidget,
-                                 FWL_WGTRELATION eRelation) = 0;
-  virtual int32_t GetWidgetIndex(IFWL_Widget* pWidget) = 0;
-  virtual FX_BOOL SetWidgetIndex(IFWL_Widget* pWidget, int32_t nIndex) = 0;
-  virtual FWL_Error RepaintWidget(IFWL_Widget* pWidget,
-                                  const CFX_RectF* pRect = NULL) = 0;
-  virtual uint32_t GetCapability() = 0;
-};
-
-IFWL_WidgetMgr* FWL_GetWidgetMgr();
-
-#endif  // XFA_FWL_CORE_IFWL_WIDGETMGR_H_