Enable //services/files/c:apptests on Android now that we have the C++11 library.

mojo/BUILD.gn

Index: mojo/BUILD.gn
diff --git a/mojo/BUILD.gn b/mojo/BUILD.gn
index ee4850de54c0f1a51b75a63384fafa30f68bf153..e0000279bfaeec9a5fee53e75bdd7fae076b8e68 100644
--- a/mojo/BUILD.gn
+++ b/mojo/BUILD.gn
@@ -64,6 +64,7 @@ group("tests") {
     "//services/clipboard:apptests",
     "//services/dart/dart_apptests",
     "//services/files:apptests",
+    "//services/files/c:apptests",
     "//services/http_server:apptests",
     "//services/js:js_apptests",
     "//services/js:js_services_unittests",
@@ -77,11 +78,7 @@ group("tests") {
   ]
 
   if (is_linux) {
-    deps += [
-      # TODO(vtl): See TODO in //services/files/c/BUILD.gn.
-      "//services/files/c:apptests",
-      "//services/python:python_apptests",
-    ]
+    deps += [ "//services/python:python_apptests" ]
   }
 
   if (mojo_use_prebuilt_network_service) {