document.delay and document.external are boolean properties.

fpdfsdk/src/javascript/Document.cpp

Index: fpdfsdk/src/javascript/Document.cpp
diff --git a/fpdfsdk/src/javascript/Document.cpp b/fpdfsdk/src/javascript/Document.cpp
index fc453b0fc833953156380103d944b3a1f9c489ef..59816f091fa4dc087ed6edc50a4e610dfeba5805 100644
--- a/fpdfsdk/src/javascript/Document.cpp
+++ b/fpdfsdk/src/javascript/Document.cpp
@@ -940,9 +940,7 @@ FX_BOOL Document::delay(IFXJS_Context* cc, CJS_PropValue& vp, CFX_WideString& sE
         if (!m_pDocument->GetPermissions(FPDFPERM_MODIFY))
             return FALSE;
 
-        bool b;
-        vp >> b;
-        m_bDelay = b;
+        vp >> m_bDelay;
         if (m_bDelay)
         {
             for (int i=0,sz=m_DelayData.GetSize(); i<sz; i++)
@@ -1107,7 +1105,7 @@ FX_BOOL Document::external(IFXJS_Context* cc, CJS_PropValue& vp, CFX_WideString&
 {
     //In Chrome case,should always return true.
     if (vp.IsGetting()) {
-        vp << TRUE;
+        vp << true;
     }
     return TRUE;
 }