Merge "Fix cold-lauch Activity Embeded apps flash black." into main am: b0f339a666

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2971151

Change-Id: I72bb86884b0bd1861b194fd81c071fb0b61570de
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/services/core/java/com/android/server/wm/WindowOrganizerController.java b/services/core/java/com/android/server/wm/WindowOrganizerController.java
index 4b99432..7ff7944 100644
--- a/services/core/java/com/android/server/wm/WindowOrganizerController.java
+++ b/services/core/java/com/android/server/wm/WindowOrganizerController.java
@@ -2203,6 +2203,11 @@
         ownerTask.addChild(taskFragment, position);
         taskFragment.setWindowingMode(creationParams.getWindowingMode());
         if (!creationParams.getInitialRelativeBounds().isEmpty()) {
+            // The surface operations for the task fragment should sync with the transition.
+            // This avoid using pending transaction before collectExistenceChange is called.
+            if (transition != null) {
+                addToSyncSet(transition.getSyncId(), taskFragment);
+            }
             // Set relative bounds instead of using setBounds. This will avoid unnecessary update in
             // case the parent has resized since the last time parent info is sent to the organizer.
             taskFragment.setRelativeEmbeddedBounds(creationParams.getInitialRelativeBounds());