Devtools Animations: Timeline interactions change the underlying style

Source/devtools/front_end/elements/AnimationsSidebarPane.js

 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @constructor
  * @extends {WebInspector.ElementsSidebarPane}
  */
 WebInspector.AnimationsSidebarPane = function(stylesPane)
 {
     WebInspector.ElementsSidebarPane.call(this, WebInspector.UIString("Animations"));
     this._stylesPane = stylesPane;
-    this._timeline = new WebInspector.AnimationTimeline();
+    this._timeline = new WebInspector.AnimationTimeline(this._stylesPane);
     this._timeline.show(this.bodyElement);
 }
 
 WebInspector.AnimationsSidebarPane.prototype = {
     /**
      * @override
      * @param {?WebInspector.DOMNode} node
      */
     setNode: function(node)
     {
@@ skipping 38 matching lines @@
 
         this._target.animationModel.ensureEnabled();
         this._timeline.redraw();
         finishCallback();
     },
 
     __proto__: WebInspector.ElementsSidebarPane.prototype
 }
 
 WebInspector.AnimationsSidebarPane.GlobalPlaybackRates = [0.1, 0.25, 0.5, 1.0];