DevTools: Tweak id calculation for JSFrames

Source/devtools/front_end/timeline/TimelineTreeView.js

Index: Source/devtools/front_end/timeline/TimelineTreeView.js
diff --git a/Source/devtools/front_end/timeline/TimelineTreeView.js b/Source/devtools/front_end/timeline/TimelineTreeView.js
index 2c68e09c7ee4e58efe6eca5100fc2233aa926817..baf1335d616645e05179386ce94cf0608532a875 100644
--- a/Source/devtools/front_end/timeline/TimelineTreeView.js
+++ b/Source/devtools/front_end/timeline/TimelineTreeView.js
@@ -266,7 +266,7 @@ WebInspector.TimelineTreeView.eventId = function(event)
 {
     if (event.name === WebInspector.TimelineModel.RecordType.JSFrame) {
         var data = event.args["data"];
-        return "f:" + (data["callUID"] || WebInspector.TimelineTreeView.eventURL(event));
+        return "f:" + data["functionName"] + "@" + (data["scriptId"] || data["url"] || "");
     }
     return event.name + ":@" + WebInspector.TimelineTreeView.eventURL(event);
 }