DevTools: Simplify firstFrameAfterCommit.

Source/devtools/front_end/timeline/TimelinePanel.js

Index: Source/devtools/front_end/timeline/TimelinePanel.js
diff --git a/Source/devtools/front_end/timeline/TimelinePanel.js b/Source/devtools/front_end/timeline/TimelinePanel.js
index 1ccc731fdf61f93ae2a9d24d53ca97b3441167fb..f48c2658b1167454923e9dc4d43ee4e827335951 100644
--- a/Source/devtools/front_end/timeline/TimelinePanel.js
+++ b/Source/devtools/front_end/timeline/TimelinePanel.js
@@ -1027,7 +1027,9 @@ WebInspector.TimelinePanel.prototype = {
             var frame = /** @type {!WebInspector.TimelineFrame} */ (this._selection.object());
             if (Runtime.experiments.isEnabled("filmStripInNetworkAndTimeline") && !this._filmStripModel)
                 this._filmStripModel = new WebInspector.FilmStripModel(this._tracingModel);
-            var filmStripFrame = this._filmStripModel && this._filmStripModel.firstFrameAfterCommit(frame.endTime);
+            var filmStripFrame = this._filmStripModel && this._filmStripModel.frameByTimestamp(frame.endTime);
+            if (filmStripFrame && filmStripFrame.timestamp - frame.endTime > 10)
+                filmStripFrame = null;
             this.showInDetails(WebInspector.TimelineUIUtils.generateDetailsContentForFrame(this._lazyFrameModel, frame, filmStripFrame));
             if (frame.layerTree) {
                 var layersView = this._layersView();