Merge "Fix NPE caused by config change on a destroyed activity" into sc-v2-dev

                    // behave properly when activity is relaunching.

                    r.window.clearContentView();

                } else {

                    final ViewRootImpl viewRoot = v.getViewRootImpl();

                    if (viewRoot != null) {

                        // Clear the callback to avoid the destroyed activity from receiving

                        // configuration changes that are no longer effective.

                        viewRoot.setActivityConfigCallback(null);

                    }

                    wm.removeViewImmediate(v);

                }

            }

        final boolean movedToDifferentDisplay = isDifferentDisplay(activity.getDisplayId(),

                displayId);

        final SizeConfigurationBuckets buckets = getActivityClient(activityToken)

                .mSizeConfigurations;

        final ActivityClientRecord r = mActivities.get(activityToken);

        final int diff = diffPublicWithSizeBuckets(activity.mCurrentConfig,

                newConfig, buckets);

                newConfig, r != null ? r.mSizeConfigurations : null);

        final boolean hasPublicConfigChange = diff != 0;

        // TODO(b/173090263): Use diff instead after the improvement of AssetManager and

        // ResourcesImpl constructions.