DevTools: Make Timeline tests use only model records

LayoutTests/inspector/timeline/timeline-script-tag-1.html

Index: LayoutTests/inspector/timeline/timeline-script-tag-1.html
diff --git a/LayoutTests/inspector/timeline/timeline-script-tag-1.html b/LayoutTests/inspector/timeline/timeline-script-tag-1.html
index 9de11bb49759d140e2edddb14cf4d83f663335a0..9aa27a88933c521831aa293619422891599b04c9 100644
--- a/LayoutTests/inspector/timeline/timeline-script-tag-1.html
+++ b/LayoutTests/inspector/timeline/timeline-script-tag-1.html
@@ -29,18 +29,18 @@ function test()
     {
         function format(record)
         {
-            if (record.type === WebInspector.TimelineModel.RecordType.EvaluateScript)
+            if (record.type() === WebInspector.TimelineModel.RecordType.EvaluateScript)
                 InspectorTest.printTimelineRecordProperties(record);
-            else if (record.type === WebInspector.TimelineModel.RecordType.ParseHTML) {
+            else if (record.type() === WebInspector.TimelineModel.RecordType.ParseHTML) {
                 var children = [];
                 var skipCategories = { rendering: true, painting: true };
-                for (var i = 0; i < record.children.length; ++i) {
-                    var modelRecord = new WebInspector.TimelineModel.RecordImpl(WebInspector.panels.timeline._model, record.children[i], null);
+                for (var i = 0; i < record.children().length; ++i) {
+                    var modelRecord = new WebInspector.TimelineModel.RecordImpl(WebInspector.panels.timeline._model, record.children()[i], null);
                     var uiUtils = WebInspector.panels.timeline._uiUtils;
                     if (!skipCategories[uiUtils.categoryForRecord(modelRecord).name])
-                        children.push(record.children[i]);
+                        children.push(record.children()[i]);
                 }
-                record.children = children;
+                record._children = children;
                 InspectorTest.dumpTimelineRecord(record, undefined, undefined, [
                     "ParseHTML",
                     "EvaluateScript",