Make XFA_XDPPACKET an enum class.

Change-Id: Iadbdf553f32da88fe19ce26cec84a3046313f0af
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/84111
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/xfa/fxfa/parser/cxfa_alwaysembed.cpp b/xfa/fxfa/parser/cxfa_alwaysembed.cpp
index 58a1e36..71f3fd8 100644
--- a/xfa/fxfa/parser/cxfa_alwaysembed.cpp
+++ b/xfa/fxfa/parser/cxfa_alwaysembed.cpp
@@ -21,7 +21,7 @@
 CXFA_AlwaysEmbed::CXFA_AlwaysEmbed(CXFA_Document* doc, XFA_PacketType packet)
     : CXFA_Node(doc,
                 packet,
-                XFA_XDPPACKET_Config,
+                XFA_XDPPACKET::kConfig,
                 XFA_ObjectType::NodeV,
                 XFA_Element::AlwaysEmbed,
                 {},