Merge "PiP: Re-attach PiP menu when display changes." into tm-dev am: ec56afe31b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17871121

Change-Id: I057b7d16b87f053ef6e6f8b9f014293cb613a7a1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PhonePipMenuController.java

@@ -172,7 +172,7 @@ public class PhonePipMenuController implements PipMenuController {
         detachPipMenuView();
     }
 
-    private void attachPipMenuView() {
+    void attachPipMenuView() {
         // In case detach was not called (e.g. PIP unexpectedly closed)
         if (mPipMenuView != null) {
             detachPipMenuView();

libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PipController.java

@@ -521,6 +521,7 @@ public class PipController implements PipTransitionController.PipTransitionCallb
         };
 
         if (mPipTaskOrganizer.isInPip() && saveRestoreSnapFraction) {
+            mMenuController.attachPipMenuView();
             // Calculate the snap fraction of the current stack along the old movement bounds
             final PipSnapAlgorithm pipSnapAlgorithm = mPipBoundsAlgorithm.getSnapAlgorithm();
             final Rect postChangeStackBounds = new Rect(mPipBoundsState.getBounds());