RemoteViews: don't crash on null display in getLaunchOptions

While we investigate the root cause of this bug, turn the crash into a
warning.

Bug: 218409359
Test: none; we don't have repro steps for the bug yet
Change-Id: I6d699ea839726adc634a200a0057e316d59ecaa9
(cherry picked from commit 827d967199)

core/java/android/widget/RemoteViews.java

@@ -6681,7 +6681,13 @@ public class RemoteViews implements Parcelable, Filter {
                 opts = ActivityOptions.makeBasic();
                 opts.setPendingIntentLaunchFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
             }
-            opts.setLaunchDisplayId(view.getDisplay().getDisplayId());
+            if (view.getDisplay() != null) {
+                opts.setLaunchDisplayId(view.getDisplay().getDisplayId());
+            } else {
+                // TODO(b/218409359): Remove once bug is fixed.
+                Log.w(LOG_TAG, "getLaunchOptions: view.getDisplay() is null!",
+                        new Exception());
+            }
             return Pair.create(intent, opts);
         }
     }