Merge "Make rotation leash for rotated multi-activity pip expand" into udc-dev

                            topActivity.reparent(lastParentBeforePip,

                                    lastParentBeforePip.getChildCount() /* top */,

                                    "movePinnedActivityToOriginalTask");

                            final DisplayContent dc = topActivity.getDisplayContent();

                            if (dc != null && dc.isFixedRotationLaunchingApp(topActivity)) {

                                // Expanding pip into new rotation, so create a rotation leash

                                // until the display is rotated.

                                topActivity.getOrCreateFixedRotationLeash(

                                        topActivity.getSyncTransaction());

                            }

                            lastParentBeforePip.moveToFront("movePinnedActivityToOriginalTask");

                        }

                    }