Method mutateElement

src/base-element.js:949–951

* Runs the specified mutation on the element and ensures that remeasures and * layouts are performed for the affected elements. * * This method should be called whenever a significant mutations are done * on the DOM that could affect layout of elements inside this subtree or * its sib

(mutator, opt_element)

   * @return {!Promise}
   */
  mutateElement(mutator, opt_element) {
    return this.measureMutateElement(null, mutator, opt_element);
  }

  /**
   * Runs the specified measure, then runs the mutation on the element and