Remove FX_BOOL from core

core/fpdfapi/page/cpdf_shadingpattern.cpp

Index: core/fpdfapi/page/cpdf_shadingpattern.cpp
diff --git a/core/fpdfapi/page/cpdf_shadingpattern.cpp b/core/fpdfapi/page/cpdf_shadingpattern.cpp
index d2736870e1dbe3e9aa44344bddce6655c2563c3f..3b0b439a318513f297b876778bb5554c30436240 100644
--- a/core/fpdfapi/page/cpdf_shadingpattern.cpp
+++ b/core/fpdfapi/page/cpdf_shadingpattern.cpp
@@ -62,12 +62,12 @@ CPDF_ShadingPattern* CPDF_ShadingPattern::AsShadingPattern() {
 
 bool CPDF_ShadingPattern::Load() {
   if (m_ShadingType != kInvalidShading)
-    return TRUE;
+    return true;
 
   CPDF_Dictionary* pShadingDict =
       m_pShadingObj ? m_pShadingObj->GetDict() : nullptr;
   if (!pShadingDict)
-    return FALSE;
+    return false;
 
   m_pFunctions.clear();
   CPDF_Object* pFunc = pShadingDict->GetDirectObjectFor("Function");
@@ -82,7 +82,7 @@ bool CPDF_ShadingPattern::Load() {
   }
   CPDF_Object* pCSObj = pShadingDict->GetDirectObjectFor("ColorSpace");
   if (!pCSObj)
-    return FALSE;
+    return false;
 
   CPDF_DocPageData* pDocPageData = m_pDocument->GetPageData();
   m_pCS = pDocPageData->GetColorSpace(pCSObj, nullptr);
@@ -93,7 +93,7 @@ bool CPDF_ShadingPattern::Load() {
 
   // We expect to have a stream if our shading type is a mesh.
   if (IsMeshShading() && !ToStream(m_pShadingObj))
-    return FALSE;
+    return false;
 
-  return TRUE;
+  return true;
 }