[Devtools] Move screenshots to below filter bar in network

third_party/WebKit/Source/devtools/front_end/network/NetworkPanel.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008, 2009 Anthony Ricaud <rik@webkit.org>
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 301 matching lines @@
   }
 
   _toggleRecordFilmStrip() {
     var toggled = this._networkRecordFilmStripSetting.get();
     if (toggled && !this._filmStripRecorder) {
       this._filmStripView = new PerfUI.FilmStripView();
       this._filmStripView.setMode(PerfUI.FilmStripView.Modes.FrameBased);
       this._filmStripView.element.classList.add('network-film-strip');
       this._filmStripRecorder =
           new Network.NetworkPanel.FilmStripRecorder(this._networkLogView.timeCalculator(), this._filmStripView);
-      this._filmStripView.show(this.element, this.element.firstElementChild);
+      this._filmStripView.show(this.element, this._overviewPane.element);
       this._filmStripView.addEventListener(PerfUI.FilmStripView.Events.FrameSelected, this._onFilmFrameSelected, this);
       this._filmStripView.addEventListener(PerfUI.FilmStripView.Events.FrameEnter, this._onFilmFrameEnter, this);
       this._filmStripView.addEventListener(PerfUI.FilmStripView.Events.FrameExit, this._onFilmFrameExit, this);
       this._resetFilmStripView();
     }
 
     if (!toggled && this._filmStripRecorder) {
       this._filmStripView.detach();
       this._filmStripView = null;
       this._filmStripRecorder = null;
@@ skipping 392 matching lines @@
    * @param {string} actionId
    * @return {boolean}
    */
   handleAction(context, actionId) {
     var panel = UI.context.flavor(Network.NetworkPanel);
     console.assert(panel && panel instanceof Network.NetworkPanel);
     panel._toggleRecording();
     return true;
   }
 };