Fix some JS style nits.

tools/deep_memory_profiler/visualizer/static/profiler.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.
 
 /**
  * This class provides data access interface for dump file profiler.
  * @constructor
  */
 var Profiler = function(jsonData, template) {
   this.jsonData_ = jsonData;
@@ skipping 73 matching lines @@
  * @param {Object} pos Clicked position.
  */
 Profiler.prototype.setSelected = function(id, pos) {
   this.selected_ = id;
   this.emit('changed:selected', id, pos);
 };
 
 /**
  * Get all models throughout the whole timeline of given id.
  * @param {string} id Model id.
- * @return {Array.<Object>} model array of given id.
+ * @return {Array<Object>} model array of given id.
  */
 Profiler.prototype.getModelsbyId = function(id) {
   function find(model) {
     if (model.id === id)
       return model;
     if ('children' in model)
       return model.children.reduce(function(previous, current) {
         var matched = find(current);
         if (matched)
           previous = matched;
@@ skipping 64 matching lines @@
 
   // Recalculate new template.
   this.reparse();
 };
 
 /**
  * Calculate the model of certain snapshot.
  * @param {string} template Local template.
  * @param {Object} snapshot Current snapshot.
  * @param {Object} worldUnits Mapping of world units.
- * @param {Array.<number>} localUnits Array of local units.
+ * @param {Array<number>} localUnits Array of local units.
  * @param {string} name Local node path.
  * @return {Object} Return model, total size and remaining units.
  * @private
  */
 Profiler.prototype.accumulate_ = function(
   template, snapshot, worldUnits, localUnits, name) {
   var self = this;
   var totalSize = 0;
   var worldName = template[0];
   var breakdownName = template[1];
@@ skipping 102 matching lines @@
 
   return {
     model: model,
     totalSize: totalSize,
     remainderUnits: remainderUnits
   };
 };
 
 /**
  * Parse template and calculate models of the whole timeline.
- * @return {Array.<Object>} Models of the whole timeline.
+ * @return {Array<Object>} Models of the whole timeline.
  * @private
  */
 Profiler.prototype.parseTemplate_ = function() {
   function calModelId(model, localPath) {
     // Create unique id for every model.
     model.id = localPath.length ?
       localPath.join() + ',' + model.name : model.name;
 
     if ('children' in model) {
       model.children.forEach(function(child, index) {
@@ skipping 18 matching lines @@
     localUnits = localUnits.map(function(unitID) {
       return parseInt(unitID, 10);
     });
 
     var retVal =
       self.accumulate_(self.template_, snapshot, worldUnits, localUnits);
     calModelId(retVal.model, []);
     return retVal.model;
   });
 };