Use constant.

// FREEBIE

Closes #1988

src/org/thoughtcrime/securesms/service/RegistrationService.java

@@ -16,6 +16,7 @@ import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.crypto.IdentityKeyUtil;
 import org.thoughtcrime.securesms.crypto.MasterSecret;
 import org.thoughtcrime.securesms.crypto.PreKeyUtil;
+import org.thoughtcrime.securesms.jobs.GcmRefreshJob;
 import org.thoughtcrime.securesms.push.TextSecureCommunicationFactory;
 import org.thoughtcrime.securesms.util.DirectoryHelper;
 import org.thoughtcrime.securesms.util.TextSecurePreferences;
@@ -237,7 +238,7 @@ public class RegistrationService extends Service {
 
     setState(new RegistrationState(RegistrationState.STATE_GCM_REGISTERING, number));
 
-    String gcmRegistrationId = GoogleCloudMessaging.getInstance(this).register("312334754206");
+    String gcmRegistrationId = GoogleCloudMessaging.getInstance(this).register(GcmRefreshJob.REGISTRATION_ID);
     TextSecurePreferences.setGcmRegistrationId(this, gcmRegistrationId);
     accountManager.setGcmId(Optional.of(gcmRegistrationId));