[xfa] Move CJX code into fxjs/xfa

This CL moves the remaining CJX clases into fxjs/xfa so they co-exist
with the rest of the CJX classes.

Change-Id: I2b1e5504ac23f73df177f309967a04ab27fb61d1
Reviewed-on: https://pdfium-review.googlesource.com/20550
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/fxjs/xfa/cjx_model.h b/fxjs/xfa/cjx_model.h
index f4e6ac9..17b8d3d 100644
--- a/fxjs/xfa/cjx_model.h
+++ b/fxjs/xfa/cjx_model.h
@@ -8,7 +8,7 @@
 #define FXJS_XFA_CJX_MODEL_H_
 
 #include "fxjs/CJX_Define.h"
-#include "fxjs/cjx_node.h"
+#include "fxjs/xfa/cjx_node.h"
 
 class CXFA_Node;