Allow overriding GN build flags

In order to enable XFA from GN builds we need to be able to override
pdf_enable_xfa. To do this a build_overrides/pdfium.gni file needs to be created
in Chrome. To use that, we have to create a build_overrides/pdfium.gni file
in PDFium that just uses the default values.

BUG=chromium:62400

Review-Url: https://codereview.chromium.org/1923333002

1 files changed, 1 insertions, 1 deletions

diff --git a/BUILD.gn b/BUILD.gn
index b4a6771344..133fee86c2 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -3,8 +3,8 @@
 # found in the LICENSE file.
 
 import("//build_overrides/v8.gni")
+import("//build_overrides/pdfium.gni")
 import("//testing/test.gni")
-import("pdfium.gni")
 
 config("pdfium_config") {
   cflags = []