Fix some JS style nits.

remoting/webapp/base/js/client_plugin_host_desktop_impl.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.
 
 /**
  * @fileoverview
  * Provides an interface to manage the Host Desktop of a remoting session.
  */
 
 var remoting = remoting || {};
@@ skipping 88 matching lines @@
  * desktop is changed.
  *
  * @param {remoting.ClientPluginMessage} message
  * @return {Array<{left:number, top:number, width:number, height:number}>}
  *    rectangles of the desktop shape.
  */
 remoting.ClientPlugin.HostDesktopImpl.prototype.onShapeUpdated =
     function(message) {
   var shapes = base.getArrayAttr(message.data, 'rects');
   var rects = shapes.map(
-    /** @param {Array.<number>} shape */
+    /** @param {Array<number>} shape */
     function(shape) {
       if (!Array.isArray(shape) || shape.length != 4) {
         throw 'Received invalid onDesktopShape message';
       }
       var rect = {};
       rect.left = shape[0];
       rect.top = shape[1];
       rect.width = shape[2];
       rect.height = shape[3];
       return rect;
   });
 
   this.raiseEvent(remoting.HostDesktop.Events.shapeChanged, rects);
   return rects;
 };
 
 }());