Update Media Router WebUI JSDocs.

chrome/browser/resources/media_router/elements/media_router_container/media_router_container.js

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 (function() {
   /**
    * The possible states of media-router-container. Used to determine which
    * components of media-router-container to show.
    *
    * @enum {number}
@@ skipping 169 matching lines @@
    * @return {boolean} Whether or not to hide the cast mode list.
    * @private
    */
   computeCastModeHidden_: function(view) {
     return view != MediaRouterContainerView.CAST_MODE_LIST;
   },
 
   /**
    * @param {!MediaRouterContainerView} view The current view.
    * @param {?media_router.Issue} issue The current issue.
-   * return {boolean} Whether or not to hide the header.
+   * @return {boolean} Whether or not to hide the header.
    * @private
    */
   computeHeaderHidden_: function(view, issue) {
     return view == MediaRouterContainerView.ROUTE_DETAILS ||
         (view == MediaRouterContainerView.SINK_LIST &&
          issue && issue.isBlocking);
   },
 
   /**
    * @param {!MediaRouterContainerView} view The current view.
    * @param {?media_router.Issue} issue The current issue.
-   * return {boolean} Whether or not to hide the issue banner.
+   * @return {boolean} Whether or not to hide the issue banner.
    * @private
    */
   computeIssueBannerHidden_: function(view, issue) {
     return !issue || view == MediaRouterContainerView.CAST_MODE_LIST;
   },
 
   /**
    * @param {!MediaRouterContainerView} view The current view.
    * @param {?media_router.Issue} issue The current issue.
-   * return {boolean} Whether or not to hide the route details.
+   * @return {boolean} Whether or not to hide the route details.
    * @private
    */
   computerRouteDetailsHidden_: function(view, issue) {
     return view != MediaRouterContainerView.ROUTE_DETAILS ||
         (issue && issue.isBlocking);
   },
 
   /**
    * @param {!string} sinkId A sink ID.
-   * return {boolean} Whether or not to hide the route info in the sink list
+   * @return {boolean} Whether or not to hide the route info in the sink list
    *     that is associated with |sinkId|.
    * @private
    */
   computeRouteInSinkListHidden_: function(sinkId) {
     return !this.sinkToRouteMap_[sinkId];
   },
 
   /**
    * @param {!string} sinkId A sink ID.
-   * return {string} The title value of the route associated with |sinkId|.
+   * @return {string} The title value of the route associated with |sinkId|.
    * @private
    */
   computeRouteInSinkListValue_: function(sinkId) {
     var route = this.sinkToRouteMap_[sinkId];
     return route ? this.sinkToRouteMap_[sinkId].title : '';
   },
 
   /**
    * @param {?media_router.Route} route The current route.
    * return {?media_router.Sink} The sink associated with |route|.
    * @private
    */
   computeSinkForCurrentRoute_: function(route) {
     return route ? this.sinkMap_[route.sinkId] : null;
   },
 
   /**
    * @param {!MediaRouterContainerView} view The current view.
    * @param {?media_router.Issue} issue The current issue.
-   * return {boolean} Whether or not to hide the sink list.
+   * @return {boolean} Whether or not to hide the sink list.
    * @private
    */
   computeSinkListHidden_: function(view, issue) {
     return view != MediaRouterContainerView.SINK_LIST ||
         (issue && issue.isBlocking);
   },
 
   /**
    * Creates a new route if |route| is null. Otherwise, shows the route
    * details.
@@ skipping 110 matching lines @@
    */
   toggleCastModeHidden_: function() {
     if (this.currentView_ == MediaRouterContainerView.CAST_MODE_LIST) {
       this.showSinkList_();
     } else {
       this.showCastModeList_();
     }
   },
 });
 })();