Change CPDF_Boolean to use bool instead of FX_BOOL.

fpdfsdk/pdfwindow/PWL_Icon.cpp

Index: fpdfsdk/pdfwindow/PWL_Icon.cpp
diff --git a/fpdfsdk/pdfwindow/PWL_Icon.cpp b/fpdfsdk/pdfwindow/PWL_Icon.cpp
index cfd62dfcd913a26f35b399632992f30b2a29d75d..18111ac358502ab2bc99ee35f00d645533f4fc90 100644
--- a/fpdfsdk/pdfwindow/PWL_Icon.cpp
+++ b/fpdfsdk/pdfwindow/PWL_Icon.cpp
@@ -145,13 +145,6 @@ void CPWL_Icon::GetIconPosition(FX_FLOAT& fLeft, FX_FLOAT& fBottom) {
   }
 }
 
-FX_BOOL CPWL_Icon::GetFittingBounds() {
-  if (m_pIconFit)
-    return m_pIconFit->GetFittingBounds();
-
-  return FALSE;
-}
-
 void CPWL_Icon::GetScale(FX_FLOAT& fHScale, FX_FLOAT& fVScale) {
   fHScale = 1.0f;
   fVScale = 1.0f;