public static void configureForProductionIfNotConfigured(Context context) {
    Preconditions.checkNotNull(context);
    DependencyInjectorModule module = createProductionModule();
    module.initialize(context);
    configureIfNotConfigured(module);
  }
Clears any state and configures this injector for production use. Does nothing if the injector
is already configured.
java/com/google/android/apps/authenticator/testability/DependencyInjector.java