Method removeContainer

src/service/scheduler.js:159–168

* Removes the container and its observer that were set by the `setContainer`. * * @param {!Element} container

(container)

   * @param {!Element} container
   */
  removeContainer(container) {
    const observer = this.containerMap_.get(container);
    if (!observer) {
      return;
    }

    // Disconnect. All children will be unobserved automatically.
    observer.disconnect();
    this.containerMap_.delete(container);
  }

  /** @private*/
  signalScanReady_() {