Remap pt-BR to pt on iOS

ui/base/strings/ui_strings.grd

Index: ui/base/strings/ui_strings.grd
diff --git a/ui/base/strings/ui_strings.grd b/ui/base/strings/ui_strings.grd
index f3dfe482bc46b8e93fd8673084578b1e8c160cf1..8fef40c56beb358b6f473d21f5e4008c7cba9386 100644
--- a/ui/base/strings/ui_strings.grd
+++ b/ui/base/strings/ui_strings.grd
@@ -86,7 +86,13 @@ need to be translated for each locale.-->
          be 'nb'. -->
     <output filename="ui_strings_nb.pak" type="data_package" lang="no" />
     <output filename="ui_strings_pl.pak" type="data_package" lang="pl" />
-    <output filename="ui_strings_pt-BR.pak" type="data_package" lang="pt-BR" />
+    <if expr="pp_ifdef('ios')">
+      <!-- iOS uses pt for pt-BR -->
+      <output filename="ui_strings_pt.pak" type="data_package" lang="pt-BR" />
+    </if>
+    <if expr="not pp_ifdef('ios')">
+      <output filename="ui_strings_pt-BR.pak" type="data_package" lang="pt-BR" />
+    </if>
     <output filename="ui_strings_pt-PT.pak" type="data_package" lang="pt-PT" />
     <output filename="ui_strings_ro.pak" type="data_package" lang="ro" />
     <output filename="ui_strings_ru.pak" type="data_package" lang="ru" />