Make ":pdfium" pass gn check.

Change-Id: I41861ae949f44475a13f67e7cb8fb6e186cd6732
Reviewed-on: https://pdfium-review.googlesource.com/c/43990
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
diff --git a/.gn b/.gn
index 8dc9f60..818bf58 100644
--- a/.gn
+++ b/.gn
@@ -17,6 +17,7 @@
 }
 
 check_targets = [
+  ":pdfium",
   "//core/fxcrt/*",
   "//fpdfsdk/*",
   "//fxbarcode/*",
diff --git a/BUILD.gn b/BUILD.gn
index c9cd7b0..65d9b33 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -144,6 +144,11 @@
     "constants",
     "core/fdrm",
     "core/fpdfapi",
+    "core/fpdfapi/edit",
+    "core/fpdfapi/font",
+    "core/fpdfapi/page",
+    "core/fpdfapi/parser",
+    "core/fpdfapi/render",
     "core/fpdfdoc",
     "core/fpdftext",
     "core/fxcodec",
@@ -169,6 +174,7 @@
   if (pdf_enable_xfa) {
     deps += [
       "fpdfsdk/fpdfxfa",
+      "fxbarcode",
       "xfa/fxfa",
       "xfa/fxfa/parser",
     ]