Add memory leak detection to audioserver

am: 8b9b89e1

* commit '8b9b89e1':
  Add memory leak detection to audioserver

Change-Id: I62a01a78326a6290ba1cb37e68caf1b69046e1ce

audioserver.te

@@ -15,11 +15,14 @@ r_dir_file(audioserver, proc)
 allow audioserver ion_device:chr_file r_file_perms;
 allow audioserver system_file:dir r_dir_perms;
 
-# used for TEE sink - pcm capture for debug.
 userdebug_or_eng(`
+  # used for TEE sink - pcm capture for debug.
   allow audioserver media_data_file:dir create_dir_perms;
   allow audioserver audioserver_data_file:dir create_dir_perms;
   allow audioserver audioserver_data_file:file create_file_perms;
+
+  # ptrace to processes in the same domain for memory leak detection
+  allow audioserver self:process ptrace;
 ')
 
 allow audioserver audio_device:dir r_dir_perms;