Remove FX_BOOL from fpdfsdk.

fpdfsdk/formfiller/cffl_listbox.h

Index: fpdfsdk/formfiller/cffl_listbox.h
diff --git a/fpdfsdk/formfiller/cffl_listbox.h b/fpdfsdk/formfiller/cffl_listbox.h
index eebe2f58ed5e551ec47ecdaecbc9c6b26107e285..e97ede0deb1c15469cbec390eefe98c562593b39 100644
--- a/fpdfsdk/formfiller/cffl_listbox.h
+++ b/fpdfsdk/formfiller/cffl_listbox.h
@@ -23,10 +23,8 @@ class CFFL_ListBox : public CFFL_FormFiller {
   PWL_CREATEPARAM GetCreateParam() override;
   CPWL_Wnd* NewPDFWindow(const PWL_CREATEPARAM& cp,
                          CPDFSDK_PageView* pPageView) override;
-  FX_BOOL OnChar(CPDFSDK_Annot* pAnnot,
-                 uint32_t nChar,
-                 uint32_t nFlags) override;
-  FX_BOOL IsDataChanged(CPDFSDK_PageView* pPageView) override;
+  bool OnChar(CPDFSDK_Annot* pAnnot, uint32_t nChar, uint32_t nFlags) override;
+  bool IsDataChanged(CPDFSDK_PageView* pPageView) override;
   void SaveData(CPDFSDK_PageView* pPageView) override;
   void GetActionData(CPDFSDK_PageView* pPageView,
                      CPDF_AAction::AActionType type,
@@ -34,7 +32,7 @@ class CFFL_ListBox : public CFFL_FormFiller {
   void SaveState(CPDFSDK_PageView* pPageView) override;
   void RestoreState(CPDFSDK_PageView* pPageView) override;
   CPWL_Wnd* ResetPDFWindow(CPDFSDK_PageView* pPageView,
-                           FX_BOOL bRestoreValue) override;
+                           bool bRestoreValue) override;
 
  private:
   std::unique_ptr<CBA_FontMap> m_pFontMap;