Merge "Only fire extra pause for pip-ing apps" into tm-dev am: 39c67bdd49

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17127806

Change-Id: I84444d1c152b3b6f8051780f813af28860fdd6fc

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

@@ -491,7 +491,8 @@ class Transition extends Binder implements BLASTSyncEngine.TransactionReadyListe
                             // Avoid commit visibility to false here, or else we will get a sudden
                             // "flash" / surface going invisible for a split second.
                             commitVisibility = false;
-                        } else {
+                        } else if (ar.getDeferHidingClient()) {
+                            // Legacy PIP-enter requires pause event with user-leaving.
                             mController.mAtm.mTaskSupervisor.mUserLeaving = true;
                             ar.getTaskFragment().startPausing(false /* uiSleeping */,
                                     null /* resuming */, "finishTransition");