mash: Cleanup ash test strings and resources.

ash/mus/BUILD.gn

Index: ash/mus/BUILD.gn
diff --git a/ash/mus/BUILD.gn b/ash/mus/BUILD.gn
index f9d57e62aef193002c6eaf3d5f66581f050a459a..2afe6181c4c411d5f71b22a83044ce30ab3f1201 100644
--- a/ash/mus/BUILD.gn
+++ b/ash/mus/BUILD.gn
@@ -138,7 +138,10 @@ mojo_application_manifest("manifest") {
   source = "manifest.json"
 }
 
+# TODO: Load resources at additional scales and load locale-specific strings.
+# TODO: Avoid duplication between Mash and Chrome pak files: crbug.com/628715.
 repack("resources") {
+  output = "$root_out_dir/ash_mus_resources.pak"
   sources = [
     "$root_gen_dir/ash/mus/resources/ash_mus_resources_100_percent.pak",
     "$root_gen_dir/ash/resources/ash_resources_100_percent.pak",
@@ -147,7 +150,6 @@ repack("resources") {
     "$root_gen_dir/ui/strings/ui_strings_en-US.pak",
     "$root_gen_dir/ui/views/resources/views_resources_100_percent.pak",
   ]
-  output = "$root_out_dir/ash_mus_resources.pak"
   deps = [
     "//ash/mus/resources",
     "//ash/resources",