Add null check when checking clipboard actions package

If a RemoteAction returned through TextClassifier does not have
a ComponentName set, it will cause an NPE. This change adds a
null check to forestall that (and just doesn't show a chip if
there's no ComponentName).

Bug: 218458652
Test: manual (force-set component to null and checked that error
occurred before but not after fix)

Change-Id: Ia17e2375f8a31b44de51e3cfb0dafc8c1dff1ad2

packages/SystemUI/src/com/android/systemui/clipboardoverlay/ClipboardOverlayController.java

@@ -252,7 +252,8 @@ public class ClipboardOverlayController {
             resetActionChips();
             for (RemoteAction action : actions) {
                 Intent targetIntent = action.getActionIntent().getIntent();
-                if (!TextUtils.equals(source, targetIntent.getComponent().getPackageName())) {
+                ComponentName component = targetIntent.getComponent();
+                if (component != null && !TextUtils.equals(source, component.getPackageName())) {
                     OverlayActionChip chip = constructActionChip(action);
                     mActionContainer.addView(chip);
                     mActionChips.add(chip);