Get rid of NULLs in xfa/

xfa/fwl/core/cfwl_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_CFWL_WIDGETMGR_H_
 #define XFA_FWL_CORE_CFWL_WIDGETMGR_H_
 
 #include <map>
@@ skipping 57 matching lines @@
   IFWL_Widget* GetOwnerWidget(IFWL_Widget* pWidget) const;
   IFWL_Widget* GetFirstSiblingWidget(IFWL_Widget* pWidget) const;
   IFWL_Widget* GetPriorSiblingWidget(IFWL_Widget* pWidget) const;
   IFWL_Widget* GetNextSiblingWidget(IFWL_Widget* pWidget) const;
   IFWL_Widget* GetLastSiblingWidget(IFWL_Widget* pWidget) const;
   IFWL_Widget* GetFirstChildWidget(IFWL_Widget* pWidget) const;
   IFWL_Widget* GetLastChildWidget(IFWL_Widget* pWidget) const;
   IFWL_Widget* GetSystemFormWidget(IFWL_Widget* pWidget) const;
 
   FX_BOOL SetWidgetIndex(IFWL_Widget* pWidget, int32_t nIndex);
-  FWL_Error RepaintWidget(IFWL_Widget* pWidget, const CFX_RectF* pRect = NULL);
+  FWL_Error RepaintWidget(IFWL_Widget* pWidget,
+                          const CFX_RectF* pRect = nullptr);
 
   void AddWidget(IFWL_Widget* pWidget);
   void InsertWidget(IFWL_Widget* pParent,
                     IFWL_Widget* pChild,
                     int32_t nIndex = -1);
   void RemoveWidget(IFWL_Widget* pWidget);
   void SetOwner(IFWL_Widget* pOwner, IFWL_Widget* pOwned);
   void SetParent(IFWL_Widget* pParent, IFWL_Widget* pChild);
   FX_BOOL IsChild(IFWL_Widget* pChild, IFWL_Widget* pParent);
   FWL_Error SetWidgetRect_Native(IFWL_Widget* pWidget, const CFX_RectF& rect);
@@ skipping 16 matching lines @@
   FX_BOOL GetAdapterPopupPos(IFWL_Widget* pWidget,
                              FX_FLOAT fMinHeight,
                              FX_FLOAT fMaxHeight,
                              const CFX_RectF& rtAnchor,
                              CFX_RectF& rtPopup);
 
  protected:
   int32_t TravelWidgetMgr(CFWL_WidgetMgrItem* pParent,
                           int32_t* pIndex,
                           CFWL_WidgetMgrItem* pItem,
-                          IFWL_Widget** pWidget = NULL);
+                          IFWL_Widget** pWidget = nullptr);
   FX_BOOL IsAbleNative(IFWL_Widget* pWidget) const;
 
   uint32_t m_dwCapability;
   std::unique_ptr<CFWL_WidgetMgrDelegate> m_pDelegate;
   std::map<IFWL_Widget*, std::unique_ptr<CFWL_WidgetMgrItem>> m_mapWidgetItem;
   CXFA_FWLAdapterWidgetMgr* const m_pAdapter;
 #if (_FX_OS_ == _FX_WIN32_DESKTOP_) || (_FX_OS_ == _FX_WIN64_)
   CFX_RectF m_rtScreen;
 #endif
   friend class CFWL_WidgetMgrDelegate;
@@ skipping 24 matching lines @@
                        const CFX_Matrix* pMatrix);
   FX_BOOL IsNeedRepaint(IFWL_Widget* pWidget,
                         CFX_Matrix* pMatrix,
                         const CFX_RectF& rtDirty);
   FX_BOOL bUseOffscreenDirect(IFWL_Widget* pWidget);
 
   CFWL_WidgetMgr* m_pWidgetMgr;
 };
 
 #endif  // XFA_FWL_CORE_CFWL_WIDGETMGR_H_