[BackupHelper] Break the loop when END_DOCUMENT is reached

`skipToEndOfTag` does not consider the case END_DOCUMENT when calling
parser.next(); this causes an infinite loop. `skipToEndOfTag` is reached
because we catch an exception due to a corrupted file causing an
unexpected EOF and just continue to try to parse the file.

Relnote: Break out of loop in during restore at END_DOCUMENT
Bug: 299676312
Test: Push corrupted file force delayed restore by installing
Change-Id: I3eed0447cee8205c1db0d6b3f103938a4a4bdc07

1 files changed, 2 insertions, 2 deletions

diff --git a/PermissionController/src/com/android/permissioncontroller/permission/service/BackupHelper.java b/PermissionController/src/com/android/permissioncontroller/permission/service/BackupHelper.java
index 9082b6931..bea110f70 100644
--- a/PermissionController/src/com/android/permissioncontroller/permission/service/BackupHelper.java
+++ b/PermissionController/src/com/android/permissioncontroller/permission/service/BackupHelper.java
@@ -136,8 +136,8 @@ public class BackupHelper {
                 case END_TAG:
                     numOpenTags--;
                     break;
-                default:
-                    // ignore
+                case END_DOCUMENT:
+                    return;
             }
         }
     }