Convert GN visibility to be a list.chromium/2155chromium/2154chromium/2152

GN visibility currently allows either string or list types, but this is causing
some problems for some templates. I'm going to require it to be lists, so am
changing all callers before pushing the new binary.

R=jam@chromium.org

Review URL: https://codereview.chromium.org/555523002

1 files changed, 1 insertions, 1 deletions

diff --git a/BUILD.gn b/BUILD.gn
index f811cf0130..c4c802eefd 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -116,7 +116,7 @@ static_library("pdfium") {
 }
 
 # Targets below this are only visible within this file.
-visibility = ":*"
+visibility = [ ":*" ]
 
 component("safemath") {
   sources = [