make use of existing gn args in ui build config

chrome/browser/ui/BUILD.gn

Index: chrome/browser/ui/BUILD.gn
diff --git a/chrome/browser/ui/BUILD.gn b/chrome/browser/ui/BUILD.gn
index 712c5fbfaa8e0f4b3c0bca6c59789438711ede60..9972ec462dcfb1470dfd2ec0e191a8865723d3ba 100644
--- a/chrome/browser/ui/BUILD.gn
+++ b/chrome/browser/ui/BUILD.gn
@@ -347,10 +347,11 @@ split_static_library("ui") {
       deps -= [ "//chrome/browser/ui/views" ]
     }
   }
+  if (use_gio) {
+    deps += [ "//build/linux/libgio" ]
+  }
   if (use_aura && !use_ozone && is_desktop_linux) {
     deps += [
-      "//build/linux/libgio",
-
       # gtk2 is the only component that can interact with gtk2 in our new
       # world.
       "//chrome/browser/ui/libgtk2ui",