Cleanup CFWL_Widget code to return CFX_RectFs where appropriate

xfa/fwl/cfwl_widget.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_CFWL_WIDGET_H_
 #define XFA_FWL_CFWL_WIDGET_H_
 #include <memory>
 
@@ skipping 35 matching lines @@
 class IFWL_ThemeProvider;
 
 class CFWL_Widget : public IFWL_WidgetDelegate {
  public:
   ~CFWL_Widget() override;
 
   virtual FWL_Type GetClassID() const = 0;
   virtual bool IsInstance(const CFX_WideStringC& wsClass) const;
   virtual CFX_RectF GetAutosizedWidgetRect();
   virtual CFX_RectF GetWidgetRect();
-  virtual void GetClientRect(CFX_RectF& rect);
+  virtual CFX_RectF GetClientRect();
   virtual void ModifyStylesEx(uint32_t dwStylesExAdded,
                               uint32_t dwStylesExRemoved);
   virtual void SetStates(uint32_t dwStates);
   virtual void RemoveStates(uint32_t dwStates);
   virtual void Update() = 0;
   virtual FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy);
   virtual void DrawWidget(CFX_Graphics* pGraphics,
                           const CFX_Matrix* pMatrix) = 0;
   virtual void SetThemeProvider(IFWL_ThemeProvider* pThemeProvider);
 
@@ skipping 35 matching lines @@
   }
 
   const CFWL_App* GetOwnerApp() const { return m_pOwnerApp; }
   uint32_t GetEventKey() const { return m_nEventKey; }
   void SetEventKey(uint32_t key) { m_nEventKey = key; }
 
   void* GetLayoutItem() const { return m_pLayoutItem; }
   void SetLayoutItem(void* pItem) { m_pLayoutItem = pItem; }
 
   void SetFocus(bool bFocus);
-  void Repaint(const CFX_RectF* pRect);
+  void RepaintRect(const CFX_RectF& pRect);
+  void Repaint();
 
  protected:
   CFWL_Widget(const CFWL_App* app,
               std::unique_ptr<CFWL_WidgetProperties> properties,
               CFWL_Widget* pOuter);
 
   bool IsEnabled() const;
   bool IsActive() const;
   bool IsLocked() const { return m_iLock > 0; }
   bool HasBorder() const;
   bool HasEdge() const;
-  void GetEdgeRect(CFX_RectF& rtEdge);
+  CFX_RectF GetEdgeRect();
   FX_FLOAT GetBorderSize(bool bCX);
   FX_FLOAT GetEdgeWidth();
-  void GetRelativeRect(CFX_RectF& rect);
+  CFX_RectF GetRelativeRect();
   void* GetThemeCapacity(CFWL_WidgetCapacity dwCapacity);
   IFWL_ThemeProvider* GetAvailableTheme();
   CFX_SizeF CalcTextSize(const CFX_WideString& wsText,
                          IFWL_ThemeProvider* pTheme,
                          bool bMultiLine);
   void CalcTextRect(const CFX_WideString& wsText,
                     IFWL_ThemeProvider* pTheme,
                     uint32_t dwTTOStyles,
                     int32_t iTTOAlign,
                     CFX_RectF& rect);
@@ skipping 49 matching lines @@
                       const CFX_Matrix* pMatrix);
   void NotifyDriver();
   bool IsParent(CFWL_Widget* pParent);
 
   void* m_pLayoutItem;
   uint32_t m_nEventKey;
   IFWL_WidgetDelegate* m_pDelegate;  // Not owned.
 };
 
 #endif  // XFA_FWL_CFWL_WIDGET_H_