Shorten Closure template notation from Array.<*> to Array<*> in cvox.

chrome/browser/resources/chromeos/chromevox/walkers/abstract_walker.js

 // Copyright 2014 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 An interface (and partial implementation) for the basic
  * traversal through some piece of the dom.
  * For each different ordered (either in dom or by any other metric) set
  * of "valid selections" (just set from now on), a new
  * base class should be defined that implements this interface. For example,
@@ skipping 113 matching lines @@
 /**
  * Returns an array of NavDescriptions that defines what should be said
  * by the tts engine on traversal from prevSel to sel. While this is
  * introducing knowledge (of NavDescriptions) into this class that
  * it shouldn't know, this is currently the best place for this method
  * to reside, as the set of valid CursorSelections must be known.
  * sel must be valid CursorSelections for this walker, prevSel may be any
  * selection. Undefined behavior otherwise.
  * @param {!cvox.CursorSelection} prevSel The valid previous selection.
  * @param {!cvox.CursorSelection} sel The valid current selection.
- * @return {!Array.<!cvox.NavDescription>} The description array.
+ * @return {!Array<!cvox.NavDescription>} The description array.
  */
 cvox.AbstractWalker.prototype.getDescription = goog.abstractMethod;
 
 
 /**
  * Returns a NavBraille that defines what should be brailled on traversal from
  * prevSel to sel.
  * sel must be valid CursorSelections for this walker, prevSel may be any
  * selection. Undefined behavior otherwise.
  * @param {!cvox.CursorSelection} prevSel The valid previous selection.
@@ skipping 23 matching lines @@
     return this[name](sel);
   }
   return null;
 };
 
 /**
  * Returns message string of the walker's granularity.
  * @return {string} The message string.
  */
 cvox.AbstractWalker.prototype.getGranularityMsg = goog.abstractMethod;