Merge 95410 - Web Inspector: didMarkDOMContentEvent() should send event of MarkDOMContent type.

LayoutTests/inspector/timeline/timeline-test.js

 var initialize_Timeline = function() {
 
 // Scrub values when printing out these properties in the record or data field.
 InspectorTest.timelineNonDeterministicProps = { 
     children : 1,
     endTime : 1, 
     height : 1,
     requestId : 1,
     startTime : 1,
     width : 1,
@@ skipping 13 matching lines @@
     {
         InspectorTest._timelineRecords.push(record);
         for (var i = 0; record.children && i < record.children.length; ++i)
             addRecord(record.children[i]);
     }
     WebInspector.timelineManager.addEventListener(WebInspector.TimelineManager.EventTypes.TimelineEventRecorded, function(event) {
         addRecord(event.data);
     });
 };
 
+
+InspectorTest.waitForRecordType = function(recordType, callback)
+{
+    WebInspector.timelineManager.addEventListener(WebInspector.TimelineManager.EventTypes.TimelineEventRecorded, function(event) {
+            addRecord(event.data);
+    });
+
+    function addRecord(record)
+    {
+        if (record.type !== WebInspector.TimelineAgent.RecordType[recordType]) {
+            for (var i = 0; record.children && i < record.children.length; ++i)
+                addRecord(record.children[i]);
+            return ;
+        }
+        callback(record);
+    }
+}
+
 InspectorTest.stopTimeline = function(callback)
 {
     function didStop()
     {
         WebInspector.panels.timeline.toggleTimelineButton.toggled = false;
         callback(InspectorTest._timelineRecords);
     }
     TimelineAgent.stop(didStop);
 };
 
@@ skipping 65 matching lines @@
 InspectorTest._timelineAgentTypeToString = function(numericType)
 {
     for (var prop in WebInspector.TimelineAgent.RecordType) {
         if (WebInspector.TimelineAgent.RecordType[prop] === numericType)
             return prop;
     }
     return undefined;
 };
 
 };