Bugfix: Remove widgets and deep shortcuts of app which gets archived.

* Once app is archived, remove widgets and deep shortcuts corresponding to the app from the home screen.
* However during backup & restore, widgets should not be removed if they are being restored.

Test: verified bugfix locally.
Bug: 326567866
Flag: ACONFIG com.android.launcher3.enable_support_for_archiving DEVELOPMENT
Change-Id: Ib3a112aadc7bd901fd6a0ba86f472ec6acf8d626

src/com/android/launcher3/model/ShortcutsChangedTask.java

@@ -78,10 +78,12 @@ public class ShortcutsChangedTask extends BaseModelUpdateTask {
 
         if (!matchingWorkspaceItems.isEmpty()) {
             if (mShortcuts.isEmpty()) {
+                PackageManagerHelper packageManagerHelper = new PackageManagerHelper(
+                        app.getContext());
                 // Verify that the app is indeed installed.
-                if (!new PackageManagerHelper(app.getContext())
-                        .isAppInstalled(mPackageName, mUser)) {
-                    // App is not installed, ignoring package events
+                if (!packageManagerHelper.isAppInstalled(mPackageName, mUser)
+                        && !packageManagerHelper.isAppArchivedForUser(mPackageName, mUser)) {
+                    // App is not installed or archived, ignoring package events
                     return;
                 }
             }