Eliminate url() method on TimelineModel.Record

Source/devtools/front_end/timeline/TimelineModel.js

Index: Source/devtools/front_end/timeline/TimelineModel.js
diff --git a/Source/devtools/front_end/timeline/TimelineModel.js b/Source/devtools/front_end/timeline/TimelineModel.js
index ee5c80bb4d07c9736b845afdf6253f8823493a39..340dd826e54d3cdf172f5c96f7ff08440ea56100 100644
--- a/Source/devtools/front_end/timeline/TimelineModel.js
+++ b/Source/devtools/front_end/timeline/TimelineModel.js
@@ -566,11 +566,6 @@ WebInspector.TimelineModel.Record = function()
 
 WebInspector.TimelineModel.Record.prototype = {
     /**
-     * @return {?string}
-     */
-    url: function() { },
-
-    /**
      * @return {?Array.<!ConsoleAgent.CallFrame>}
      */
     callSiteStackTrace: function() { },
@@ -767,19 +762,6 @@ WebInspector.TimelineModel.RecordImpl = function(model, timelineEvent, parentRec
 
 WebInspector.TimelineModel.RecordImpl.prototype = {
     /**
-     * @return {?string}
-     */
-    url: function()
-    {
-        var data = this.data();
-        if (data && data["url"])
-            return data["url"];
-        if (this._initiator)
-            return this._initiator.url();
-        return null;
-    },
-
-    /**
      * @return {?Array.<!ConsoleAgent.CallFrame>}
      */
     callSiteStackTrace: function()