commit fd8e93baf0d429263add341ff546ed9c00dca2bb
author Robert Carr <racarr@google.com> Thu May 10 13:40:25 2018 -0700
committer Robert Carr <racarr@google.com> Thu May 10 13:41:26 2018 -0700
tree 4fe49ebcd0ee844f3955a4b9db3b66f03ed0e1dd
parent a914cf0affec53cddd68051663ccc945e5088419

Detach children in transaction.

Trivial error.

Bug: 79441653
Test: Manual
Change-Id: I8fcc60aa2b8bb44593a2e5ada2f7c0c8a08cc16a

services/core/java/com/android/server/wm/AppWindowToken.java

diff --git a/services/core/java/com/android/server/wm/AppWindowToken.java b/services/core/java/com/android/server/wm/AppWindowToken.java
index 966ca41..9083797 100644
--- a/services/core/java/com/android/server/wm/AppWindowToken.java
+++ b/services/core/java/com/android/server/wm/AppWindowToken.java
@@ -919,10 +919,12 @@
     }
 
     void detachChildren() {
+        SurfaceControl.openTransaction();
         for (int i = mChildren.size() - 1; i >= 0; i--) {
             final WindowState w = mChildren.get(i);
             w.mWinAnimator.detachChildren();
         }
+        SurfaceControl.closeTransaction();
     }
 
     void finishRelaunching() {