handle java.lang.NullPointerException

Bug: 210528288
Test: atest CtsPermission2TestCases
Change-Id: I12c644f12f78c7585022c781b744df94a0ee9004

services/cloudsearch/java/com/android/server/cloudsearch/CloudSearchPerUserService.java

@@ -107,6 +107,10 @@ public class CloudSearchPerUserService extends
     @GuardedBy("mLock")
     public void onSearchLocked(@NonNull SearchRequest searchRequest,
             @NonNull ICloudSearchManagerCallback callback) {
+        if (mRemoteComponentName == null) {
+            return;
+        }
+
         String filterList = searchRequest.getSearchConstraints().containsKey(
                 SearchRequest.CONSTRAINT_SEARCH_PROVIDER_FILTER)
                 ? searchRequest.getSearchConstraints().getString(