Introduce TracingTimelineModel

LayoutTests/inspector/timeline/tracing/decode-resize.html

Index: LayoutTests/inspector/timeline/tracing/decode-resize.html
diff --git a/LayoutTests/inspector/timeline/tracing/decode-resize.html b/LayoutTests/inspector/timeline/tracing/decode-resize.html
index 81333bf39c5278426420bc64d1e2e9cd057d9ff3..ea13e5173e3dc8382d6addd0c3eb954817a1fd33 100644
--- a/LayoutTests/inspector/timeline/tracing/decode-resize.html
+++ b/LayoutTests/inspector/timeline/tracing/decode-resize.html
@@ -58,14 +58,15 @@ function test()
     var imageCount = 0;
 
     InspectorTest.invokeWithTracing("-*,devtools,disabled-by-default-devtools.timeline*", "showImages", onTracingComplete);
+    var tracineTimelineModel = new WebInspector.TracingTimelineModel(InspectorTest.tracingModel);
+    tracineTimelineModel.willStartRecordingTraceEvents();
     function onTracingComplete()
     {
-        var traceEventBindings = new WebInspector.TimelineTraceEventBindings();
-        var events = InspectorTest.tracingModel.inspectedTargetEvents();
-        traceEventBindings.setEvents(events);
+        tracineTimelineModel.didStopRecordingTraceEvents();
+        var events = tracineTimelineModel.inspectedTargetEvents();
         for (var i = 0; i < events.length; ++i) {
             var event = events[i];
-            if (events[i].name !== WebInspector.TimelineTraceEventBindings.RecordType.DecodeImage)
+            if (events[i].name !== WebInspector.TracingTimelineModel.RecordType.DecodeImage)
                 continue;
             InspectorTest.addResult("event: " + event.name);
             InspectorTest.addResult("imageURL: " + InspectorTest.formatters.formatAsURL(event.imageURL));