iOS platform scripts to be used by buildbots

platform_tools/ios/bin/ios_umount

Index: platform_tools/ios/bin/ios_umount
diff --git a/platform_tools/ios/bin/ios_rmdir b/platform_tools/ios/bin/ios_umount
similarity index 88%
rename from platform_tools/ios/bin/ios_rmdir
rename to platform_tools/ios/bin/ios_umount
index 127127341d666552841eccd292f020d47d8ac30a..ddc477c1fb1d85c67638a58185b9ffd7fb192131 100755
--- a/platform_tools/ios/bin/ios_rmdir
+++ b/platform_tools/ios/bin/ios_umount
@@ -1,12 +1,17 @@
 #!/bin/bash
+#
 ###############################################################################
 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 ###############################################################################
+#
+# Mount the ios device.
+#
+set -x -e
 
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 source $SCRIPT_DIR/ios_setup.sh
 
-ios_rmdir $1
+ios_umount