DevTools: get rid of getters and setters in StatusBarButton.

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)
 {
@@ skipping 159 matching lines @@
                 updatePauseButton.call(this, true);
             }
         }
 
         /**
          * @param {boolean} paused
          * @this {WebInspector.AnimationSection}
          */
         function updatePauseButton(paused)
         {
-            this._pauseButton.state = paused;
-            this._pauseButton.title = paused ? WebInspector.UIString("Play animation") : WebInspector.UIString("Pause animation");
+            this._pauseButton.setToggled(paused);
+            this._pauseButton.setTitle(paused ? WebInspector.UIString("Play animation") : WebInspector.UIString("Pause animation"));
         }
 
         this._pauseButton = new WebInspector.StatusBarButton("", "animation-pause");
         updatePauseButton.call(this, this.player.paused());
         this._pauseButton.addEventListener("click", pauseButtonHandler, this);
 
         this.currentTimeSlider = this._createCurrentTimeSlider();
 
         var controls = createElement("div");
         controls.appendChild(this._pauseButton.element);
@@ skipping 23 matching lines @@
             "duration": p.source().duration(),
             "direction": p.source().direction(),
             "fill-mode": p.source().fillMode(),
             "time-fraction": p.source().timeFraction()
         };
         var obj = WebInspector.RemoteObject.fromLocalObject(animationObject);
         var section = new WebInspector.ObjectPropertiesSection(obj, WebInspector.UIString("Animation Properties"));
         this.propertiesSection.appendChild(section.element);
     }
 }