geckodriver: Pass a slice of extension routes rather than an &Vec

Source-Repo: https://github.com/mozilla/geckodriver
Source-Revision: 6d946b86decbda25cd3c06acc12284be9a1dc0bf

committer: Andreas Tolfsen <ato@mozilla.com>

--HG--
extra : rebase_source : 0f24174ff5109a8b3cfc62d119de3b0ab6d43c05

testing/geckodriver/src/main.rs

@@ -156,7 +156,7 @@ You can obtain a copy of the license at https://mozilla.org/MPL/2.0/.");
     };
 
     let handler = MarionetteHandler::new(settings);
-    let listening = try!(webdriver::server::start(addr, handler, &extension_routes())
+    let listening = try!(webdriver::server::start(addr, handler, &extension_routes()[..])
         .map_err(|err| (ExitCode::Unavailable, err.to_string())));
     info!("Listening on {}", listening.socket);
     Ok(())