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

BUILD.gn

Index: BUILD.gn
diff --git a/BUILD.gn b/BUILD.gn
index 4923c388bb27e9f3a98dafee3aac7c8850d5260f..8ce440d736f06f07294413a9e7263f46b0861512 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -561,11 +561,14 @@ group("both_gn_and_gyp") {
 
       if (is_linux) {
         # TODO(dpranke): Figure out what platforms should actually have this.
-        deps += [
-          "//components/nacl/loader:helper_nonsfi",
-          "//components/nacl/loader:nacl_helper",
-          "//components/nacl/loader:nacl_helper_nonsfi_unittests",
-        ]
+        deps += [ "//components/nacl/loader:nacl_helper" ]
+
+        if (enable_nacl_nonsfi) {
+          deps += [
+            "//components/nacl/loader:helper_nonsfi",
+            "//components/nacl/loader:nacl_helper_nonsfi_unittests",
+          ]
+        }
       }
     }