[Devtools] Replace "Stacks" with "Causes"

Source/devtools/front_end/timeline/TracingTimelineModel.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.
 
 /**
  * @constructor
  * @param {!WebInspector.TracingManager} tracingManager
  * @param {!WebInspector.TracingModel} tracingModel
  * @param {!WebInspector.TimelineModel.Filter} recordFilter
  * @extends {WebInspector.TimelineModel}
@@ skipping 103 matching lines @@
 {
     this.name = name;
     /** @type {!Array.<!WebInspector.TracingModel.Event>} */
     this.events = [];
     /** @type {!Array.<!Array.<!WebInspector.TracingModel.Event>>} */
     this.asyncEvents = [];
 }
 
 WebInspector.TracingTimelineModel.prototype = {
     /**
-     * @param {boolean} captureStacks
+     * @param {boolean} captureCauses
      * @param {boolean} captureMemory
      * @param {boolean} capturePictures
      */
-    startRecording: function(captureStacks, captureMemory, capturePictures)
+    startRecording: function(captureCauses, captureMemory, capturePictures)
     {
         function disabledByDefault(category)
         {
             return "disabled-by-default-" + category;
         }
         var categoriesArray = [
             "-*",
             disabledByDefault("devtools.timeline"),
             disabledByDefault("devtools.timeline.frame"),
             WebInspector.TracingModel.ConsoleEventCategory
         ];
-        if (captureStacks) {
+        if (captureCauses) {
             categoriesArray.push(disabledByDefault("devtools.timeline.stack"));
             if (Runtime.experiments.isEnabled("timelineJSCPUProfile")) {
                 this._jsProfilerStarted = true;
                 this._currentTarget = WebInspector.context.flavor(WebInspector.Target);
                 this._configureCpuProfilerSamplingInterval();
                 this._currentTarget.profilerAgent().start();
             }
         }
         if (capturePictures) {
             categoriesArray = categoriesArray.concat([
@@ skipping 986 matching lines @@
      * @param {!WebInspector.ChunkedReader} reader
      */
     onChunkTransferred: function(reader) { },
 
     /**
      * @param {!WebInspector.ChunkedReader} reader
      * @param {!Event} event
      */
     onError: function(reader, event) { },
 }