Do more IWYU in fxjs/.

Change-Id: I778085c6e21904e697d5899a93f4e4e9fca92478
Reviewed-on: https://pdfium-review.googlesource.com/c/44272
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/fxjs/cjs_display.h b/fxjs/cjs_display.h
index 35eebba..eaa700e 100644
--- a/fxjs/cjs_display.h
+++ b/fxjs/cjs_display.h
@@ -7,7 +7,7 @@
 #ifndef FXJS_CJS_DISPLAY_H_
 #define FXJS_CJS_DISPLAY_H_
 
-#include "fxjs/js_define.h"
+#include "fxjs/cjs_object.h"
 
 class CJS_Display final : public CJS_Object {
  public: