1 <!DOCTYPE html> 2 <!-- 3 Copyright (c) 2015 The Chromium Authors. All rights reserved. 4 Use of this source code is governed by a BSD-style license that can be 5 found in the LICENSE file. 6 --> 7 8 <link rel="import" href="/tracing/base/event.html"> 9 <link rel="import" href="/tracing/base/iteration_helpers.html"> 10 11 <script> 12 'use strict'; 13 14 /** 15 * @fileoverview Some generic slice titles appear very frequently in traces, 16 * like MessageLoop::RunTask. Some of these slices have arguments that give 17 * useful context. This class combine such arguments with the slice title to 18 * generate a more useful title. 19 */ 20 tr.exportTo('tr.e.chrome', function() { 21 function SliceTitleFixer() { 22 } 23 24 // AsyncSlice uses virtual functions to accomplish something similar to what 25 // we're doing here. If this function ever becomes too complex we may consider 26 // using a similar pattern. 27 SliceTitleFixer.fromEvent = function(event) { 28 if (event.args && event.args['src_func']) 29 return event.title + ' <- ' + event.args['src_func']; 30 return event.title; 31 }; 32 33 return { 34 SliceTitleFixer: SliceTitleFixer 35 }; 36 }); 37 38
