Fix warnings related to std::fs::PathExt on Android.

components/util/lib.rs

@@ -13,7 +13,7 @@
 #![feature(old_io)]
 #![feature(optin_builtin_traits)]
 #![feature(path)]
-#![feature(path_ext)]
+#![cfg_attr(not(target_os = "android"), feature(path_ext))]
 #![feature(plugin)]
 #![feature(rustc_private)]
 #![feature(std_misc)]

components/util/resource_files.rs

@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use std::fs::{File, PathExt};
+use std::fs::File;
 use std::io::{self, Read};
 use std::path::PathBuf;
 
@@ -15,6 +15,7 @@ pub fn resources_dir_path() -> PathBuf {
 pub fn resources_dir_path() -> PathBuf {
     use opts;
     use std::env;
+    use std::fs::PathExt;
 
     match opts::get().resources_path {
         Some(ref path) => PathBuf::new(path),