Remove FWL globals.

xfa/fwl/core/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_CORE_CFWL_WIDGET_H_
 #define XFA_FWL_CORE_CFWL_WIDGET_H_
 
 #include <memory>
 
 #include "xfa/fwl/core/cfwl_event.h"
 #include "xfa/fwl/core/cfwl_widgetproperties.h"
 #include "xfa/fwl/core/ifwl_widget.h"
 
 class CFWL_Event;
 class CFWL_Message;
 class CFWL_Widget;
 class CFWL_WidgetDelegate;
 class CFWL_WidgetMgr;
 
 class CFWL_Widget {
  public:
-  CFWL_Widget();
+  CFWL_Widget(const IFWL_App*);
   virtual ~CFWL_Widget();
 
   virtual IFWL_Widget* GetWidget();
   virtual const IFWL_Widget* GetWidget() const;
 
   FWL_Error GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE);
   FWL_Error SetWidgetRect(const CFX_RectF& rect);
   FWL_Error GetGlobalRect(CFX_RectF& rect);
   FWL_Error GetClientRect(CFX_RectF& rtClient);
 
@@ skipping 12 matching lines @@
   void UnlockUpdate();
 
   FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy);
 
   FWL_Error DrawWidget(CFX_Graphics* pGraphics,
                        const CFX_Matrix* pMatrix = nullptr);
 
   IFWL_WidgetDelegate* SetDelegate(IFWL_WidgetDelegate* pDelegate);
 
  protected:
-  FWL_Error Initialize(const CFWL_WidgetProperties* pProperties = nullptr);
+  void Initialize(const CFWL_WidgetProperties* pProperties);
 
+  const IFWL_App* m_pApp;
   std::unique_ptr<IFWL_Widget> m_pIface;
   IFWL_WidgetDelegate* m_pDelegate;
   CFWL_WidgetMgr* const m_pWidgetMgr;
   std::unique_ptr<CFWL_WidgetProperties> m_pProperties;
 };
 
 #endif  // XFA_FWL_CORE_CFWL_WIDGET_H_