function _ResizeObserverContro() {
    /**
     * Indicates whether DOM listeners have been added.
     *
     * @private {boolean}
     */
    this.connected_ = false
    /**
     * Tells that controller has subscribed for Mutation Events.
     *
     * @private {boolean}
     */

    this.mutationEventsAdded_ = false
    /**
     * Keeps reference to the instance of MutationObserver.
     *
     * @private {MutationObserver}
     */

    this.mutationsObserver_ = null
    /**
     * A list of connected observers.
     *
     * @private {Array<ResizeObserverSPI>}
     */

    this.observers_ = []
    this.onTransitionEnd_ = this.onTransitionEnd_.bind(this)
    this.refresh = throttle(this.refresh.bind(this), REFRESH_DELAY)
  }
/**
   * Creates a new instance of ResizeObserverController.
   *
   * @private
   */
Creates a new instance of ResizeObserverController.
@private
Creates a new instance of ResizeObserverController . @private
function _ResizeObserverContro() {
    this.connected_ = false
    this.mutationEventsAdded_ = false
    this.mutationsObserver_ = null
    this.observers_ = []
    this.onTransitionEnd_ = this.onTransitionEnd_.bind(this)
    this.refresh = throttle(this.refresh.bind(this), REFRESH_DELAY)
  }
function _ResizeObserverContro ( ) { this . connected_ = false this . mutationEventsAdded_ = false this . mutationsObserver_ = null this . observers_ = [ ] this . onTransitionEnd_ = this . onTransitionEnd_ . bind ( this ) this . refresh = throttle ( this . refresh . bind ( this ) , REFRESH_DELAY ) }
Creates a new instance of ResizeObserverController.
Creates a new instance of ResizeObserverController .
/**
     * Indicates whether DOM listeners have been added.
     *
     * @private {boolean}
     */ /**
     * Tells that controller has subscribed for Mutation Events.
     *
     * @private {boolean}
     */ /**
     * Keeps reference to the instance of MutationObserver.
     *
     * @private {MutationObserver}
     */ /**
     * A list of connected observers.
     *
     * @private {Array<ResizeObserverSPI>}
     */