Cleanup unneeded FWL theme code.

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 <memory>
@@ skipping 11 matching lines @@
 #include "xfa/fwl/theme/cfwl_pushbuttontp.h"
 #include "xfa/fwl/theme/cfwl_scrollbartp.h"
 #include "xfa/fwl/theme/cfwl_widgettp.h"
 #include "xfa/fxfa/xfa_ffapp.h"
 
 class CXFA_FWLTheme final : public IFWL_ThemeProvider {
  public:
   CXFA_FWLTheme(CXFA_FFApp* pApp);
   ~CXFA_FWLTheme() override;
 
+  FWL_Error Initialize();
+  FWL_Error Finalize();
+
   // IFWL_ThemeProvider:
-  bool IsValidWidget(IFWL_Widget* pWidget) override;
-  uint32_t GetThemeID(IFWL_Widget* pWidget) override;
-  uint32_t SetThemeID(IFWL_Widget* pWidget,
-                      uint32_t dwThemeID,
-                      FX_BOOL bChildren = TRUE) override;
-  FWL_Error GetThemeMatrix(IFWL_Widget* pWidget, CFX_Matrix& matrix) override;
-  FWL_Error SetThemeMatrix(IFWL_Widget* pWidget,
-                           const CFX_Matrix& matrix) override;
   FX_BOOL DrawBackground(CFWL_ThemeBackground* pParams) override;
   FX_BOOL DrawText(CFWL_ThemeText* pParams) override;
   void* GetCapacity(CFWL_ThemePart* pThemePart,
                     CFWL_WidgetCapacity dwCapacity) override;
   FX_BOOL IsCustomizedLayout(IFWL_Widget* pWidget) override;
-  FWL_Error GetPartRect(CFWL_ThemePart* pThemePart, CFX_RectF& rtPart) override;
-  FX_BOOL IsInPart(CFWL_ThemePart* pThemePart,
-                   FX_FLOAT fx,
-                   FX_FLOAT fy) override;
   FX_BOOL CalcTextRect(CFWL_ThemeText* pParams, CFX_RectF& rect) override;
 
-  FWL_Error GetClassName(CFX_WideString& wsClass) const {
-    return FWL_Error::Succeeded;
-  }
-  uint32_t GetHashCode() const { return 0; }
-  FWL_Error Initialize();
-  FWL_Error Finalize();
-  FWL_Error GetPartRect(CFWL_ThemePart* pThemePart);
-
  protected:
   CFWL_WidgetTP* GetTheme(IFWL_Widget* pWidget);
   std::unique_ptr<CFWL_CheckBoxTP> m_pCheckBoxTP;
   std::unique_ptr<CFWL_ListBoxTP> m_pListBoxTP;
   std::unique_ptr<CFWL_PictureBoxTP> m_pPictureBoxTP;
   std::unique_ptr<CFWL_ScrollBarTP> m_pSrollBarTP;
   std::unique_ptr<CFWL_EditTP> m_pEditTP;
   std::unique_ptr<CFWL_ComboBoxTP> m_pComboBoxTP;
   std::unique_ptr<CFWL_MonthCalendarTP> m_pMonthCalendarTP;
   std::unique_ptr<CFWL_DateTimePickerTP> m_pDateTimePickerTP;
@@ skipping 28 matching lines @@
 class CXFA_FWLEditTP : public CFWL_EditTP {
  public:
   CXFA_FWLEditTP();
   ~CXFA_FWLEditTP() override;
 
   // CFWL_EditTP
   FX_BOOL DrawBackground(CFWL_ThemeBackground* pParams) override;
 };
 
 #endif  // XFA_FXFA_APP_XFA_FWLTHEME_H_