[MIPS] Adding NaCl/PNaCl support for mipsel to GN

ppapi/tests/extensions/BUILD.gn

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/nacl/config.gni")
 import("//ppapi/native_client/nacl_test_data.gni")
 
 group("extensions") {
   newlib = "//build/toolchain/nacl:clang_newlib_${target_cpu}"
   pnacl = "//build/toolchain/nacl:newlib_pnacl"
   data_deps = [
     ":ppapi_tests_extensions_background_keepalive($newlib)",
     ":ppapi_tests_extensions_load_unload($newlib)",
     ":ppapi_tests_extensions_media_galleries($newlib)",
     ":ppapi_tests_extensions_multicast_permissions($newlib)",
     ":ppapi_tests_extensions_no_socket_permissions($newlib)",
     ":ppapi_tests_extensions_packaged_app($newlib)",
     ":ppapi_tests_extensions_packaged_app($pnacl)",
     ":ppapi_tests_extensions_popup($newlib)",
     ":ppapi_tests_extensions_socket_permissions($newlib)",
   ]
-  if ((target_cpu == "x86" || target_cpu == "x64") && is_linux) {
+  if ((target_cpu == "x86" || target_cpu == "x64") && is_linux &&
+      is_nacl_nonsfi) {
     nonsfi = "//build/toolchain/nacl:newlib_pnacl_nonsfi"
     data_deps += [ ":ppapi_tests_extensions_packaged_app($nonsfi)" ]
   }
 }
 
 if (is_nacl && !is_nacl_nonsfi) {
   nacl_test_data("ppapi_tests_extensions_background_keepalive") {
     sources = [
       "background_keepalive/background.cc",
     ]
@@ skipping 251 matching lines @@
       "-xtest_file122:test_file.txt",
       "-xtest_file123:test_file2.txt",
       "-xtest_file124:test_file.txt",
       "-xtest_file125:test_file2.txt",
       "-xtest_file126:test_file.txt",
       "-xtest_file127:test_file2.txt",
       "-xtest_file128:test_file.txt",
     ]
   }
 }