Change CPDF_Boolean to use bool instead of FX_BOOL.

Review-Url: https://codereview.chromium.org/1999313002
diff --git a/core/fpdfapi/fpdf_parser/cpdf_boolean.cpp b/core/fpdfapi/fpdf_parser/cpdf_boolean.cpp
index cd7ed32..c5fd277 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_boolean.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_boolean.cpp
@@ -8,7 +8,7 @@
 
 CPDF_Boolean::CPDF_Boolean() : m_bValue(false) {}
 
-CPDF_Boolean::CPDF_Boolean(FX_BOOL value) : m_bValue(value) {}
+CPDF_Boolean::CPDF_Boolean(bool value) : m_bValue(value) {}
 
 CPDF_Boolean::~CPDF_Boolean() {}