Fix all compiler errors found by the new compiler version.

ui/file_manager/image_loader/scheduler.js

 // Copyright 2013 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.
 
 /**
  * Scheduler for requests. Fetches requests from a queue and processes them
  * synchronously, taking into account priorities. The highest priority is 0.
  * @constructor
  */
 function Scheduler() {
   /**
    * List of requests waiting to be checked. If these items are available in
    * cache, then they are processed immediately after starting the scheduler.
    * However, if they have to be downloaded, then these requests are moved
    * to pendingRequests_.
    *
-   * @type {Array.<Request>}
+   * @type {Array.<ImageRequest>}
    * @private
    */
   this.newRequests_ = [];
 
   /**
    * List of pending requests for images to be downloaded.
-   * @type {Array.<Request>}
+   * @type {Array.<ImageRequest>}
    * @private
    */
   this.pendingRequests_ = [];
 
   /**
    * List of requests being processed.
-   * @type {Array.<Request>}
+   * @type {Array.<ImageRequest>}
    * @private
    */
   this.activeRequests_ = [];
 
   /**
    * Hash array of requests being added to the queue, but not finalized yet.
    * @type {Object}
    * @private
    */
   this.requests_ = {};
@@ skipping 11 matching lines @@
  * @type {number}
  * @const
  */
 Scheduler.MAXIMUM_IN_PARALLEL = 5;
 
 /**
  * Adds a request to the internal priority queue and executes it when requests
  * with higher priorities are finished. If the result is cached, then it is
  * processed immediately once the scheduler is started.
  *
- * @param {Request} request Request object.
+ * @param {ImageRequest} request Request object.
  */
 Scheduler.prototype.add = function(request) {
   if (!this.started_) {
     this.newRequests_.push(request);
     this.requests_[request.getId()] = request;
     return;
   }
 
   // Enqueue the request, since already started.
   this.pendingRequests_.push(request);
@@ skipping 68 matching lines @@
         function(currentRequest) {
           currentRequest.downloadAndProcess(
               this.finish_.bind(this, currentRequest));
         }.bind(this, request));
   }
 };
 
 /**
  * Handles finished requests.
  *
- * @param {Request} request Finished request.
+ * @param {ImageRequest} request Finished request.
  * @private
  */
 Scheduler.prototype.finish_ = function(request) {
   var index = this.activeRequests_.indexOf(request);
   if (index < 0)
     console.warn('Request not found.');
   this.activeRequests_.splice(index, 1);
   delete this.requests_[request.getId()];
 
   // Continue handling the most important requests (if started).
   if (this.started_)
     this.continue_();
 };