MountService: Add new 'unmountSecureContainer' API call

Signed-off-by: San Mehat <san@google.com>
diff --git a/services/java/com/android/server/MountService.java b/services/java/com/android/server/MountService.java
index d54c4d9..f8f8742 100644
--- a/services/java/com/android/server/MountService.java
+++ b/services/java/com/android/server/MountService.java
@@ -1057,6 +1057,11 @@
         return getSecureContainerPath(id);
     }
 
+    public void unmountSecureContainer(String id) throws IllegalStateException {
+        String cmd = String.format("unmount_asec %s ", id);
+        mConnector.doCommand(cmd);
+    }
+
     public String getSecureContainerPath(String id) throws IllegalStateException {
         ArrayList<String> rsp = mConnector.doCommand("asec_path " + id);