Remove FX_BOOL from xfa.

xfa/fwl/theme/cfwl_scrollbartp.h

Index: xfa/fwl/theme/cfwl_scrollbartp.h
diff --git a/xfa/fwl/theme/cfwl_scrollbartp.h b/xfa/fwl/theme/cfwl_scrollbartp.h
index 6caf8f49171a26920e9930ce814f8b33e2132016..128eeb4d761655b2faa9536d0dd61b7c48788e81 100644
--- a/xfa/fwl/theme/cfwl_scrollbartp.h
+++ b/xfa/fwl/theme/cfwl_scrollbartp.h
@@ -35,15 +35,15 @@ class CFWL_ScrollBarTP : public CFWL_WidgetTP {
 
   void DrawThumbBtn(CFX_Graphics* pGraphics,
                     const CFX_RectF* pRect,
-                    FX_BOOL bVert,
+                    bool bVert,
                     FWLTHEME_STATE eState,
-                    FX_BOOL bPawButton = TRUE,
+                    bool bPawButton = true,
                     CFX_Matrix* pMatrix = nullptr);
   void DrawTrack(CFX_Graphics* pGraphics,
                  const CFX_RectF* pRect,
-                 FX_BOOL bVert,
+                 bool bVert,
                  FWLTHEME_STATE eState,
-                 FX_BOOL bLowerTrack,
+                 bool bLowerTrack,
                  CFX_Matrix* pMatrix = nullptr);
   void DrawMaxMinBtn(CFX_Graphics* pGraphics,
                      const CFX_RectF* pRect,
@@ -52,7 +52,7 @@ class CFWL_ScrollBarTP : public CFWL_WidgetTP {
                      CFX_Matrix* pMatrix = nullptr);
   void DrawPaw(CFX_Graphics* pGraphics,
                const CFX_RectF* pRect,
-               FX_BOOL bVert,
+               bool bVert,
                FWLTHEME_STATE eState,
                CFX_Matrix* pMatrix = nullptr);
   void SetThemeData(uint32_t dwID);