More FWL interface cleanup.

xfa/fxfa/app/xfa_fwltheme.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_APP_XFA_FWLTHEME_H_
 #define XFA_FXFA_APP_XFA_FWLTHEME_H_
 
-#include "xfa/fwl/core/ifwl_target.h"
 #include "xfa/fwl/core/ifwl_themeprovider.h"
 #include "xfa/fwl/theme/cfwl_barcodetp.h"
 #include "xfa/fwl/theme/cfwl_carettp.h"
 #include "xfa/fwl/theme/cfwl_checkboxtp.h"
 #include "xfa/fwl/theme/cfwl_comboboxtp.h"
 #include "xfa/fwl/theme/cfwl_datetimepickertp.h"
 #include "xfa/fwl/theme/cfwl_edittp.h"
 #include "xfa/fwl/theme/cfwl_listboxtp.h"
 #include "xfa/fwl/theme/cfwl_monthcalendartp.h"
 #include "xfa/fwl/theme/cfwl_pictureboxtp.h"
 #include "xfa/fwl/theme/cfwl_pushbuttontp.h"
 #include "xfa/fwl/theme/cfwl_scrollbartp.h"
 #include "xfa/fwl/theme/cfwl_widgettp.h"
 #include "xfa/fxfa/include/xfa_ffapp.h"
 
 class CXFA_FWLTheme : public IFWL_ThemeProvider {
  public:
   CXFA_FWLTheme(CXFA_FFApp* pApp);
   virtual ~CXFA_FWLTheme();
   virtual FWL_ERR Release() {
     delete this;
     return FWL_ERR_Succeeded;
   }
-  virtual IFWL_Target* Retain() { return NULL; }
+  virtual IFWL_Widget* Retain() { return NULL; }
   virtual FWL_ERR GetClassName(CFX_WideString& wsClass) const {
     return FWL_ERR_Succeeded;
   }
   virtual uint32_t GetHashCode() const { return 0; }
   virtual FWL_ERR Initialize();
   virtual FWL_ERR Finalize();
   virtual FX_BOOL IsValidWidget(IFWL_Widget* pWidget);
   virtual uint32_t GetThemeID(IFWL_Widget* pWidget);
   virtual uint32_t SetThemeID(IFWL_Widget* pWidget,
                               uint32_t dwThemeID,
@@ skipping 57 matching lines @@
 class CXFA_FWLEditTP : public CFWL_EditTP {
  public:
   CXFA_FWLEditTP();
   virtual ~CXFA_FWLEditTP();
 
  public:
   virtual FX_BOOL DrawBackground(CFWL_ThemeBackground* pParams);
 };
 
 #endif  // XFA_FXFA_APP_XFA_FWLTHEME_H_