Devtools Animations: Support multiple frames in the animation timeline

Source/devtools/front_end/sdk/AnimationModel.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.SDKModel}
  * @param {!WebInspector.Target} target
  */
@@ skipping 45 matching lines @@
     },
 
     /**
      * @param {string} playerId
      */
     animationPlayerCanceled: function(playerId)
     {
         this.dispatchEventToListeners(WebInspector.AnimationModel.Events.AnimationPlayerCanceled, { "playerId": playerId });
     },
 
+    /**
+     * @param {number} playbackRate
+     */
+    setPlaybackRate: function(playbackRate)
+    {
+        this._agent.setPlaybackRate(playbackRate);
+    },
+
     ensureEnabled: function()
     {
         if (this._enabled)
             return;
         this._agent.enable();
         this._enabled = true;
     },
 
     __proto__: WebInspector.SDKModel.prototype
 }
@@ skipping 400 matching lines @@
 
     /**
      * @override
      * @param {string} playerId
      */
     animationPlayerCanceled: function(playerId)
     {
         this._animationModel.animationPlayerCanceled(playerId);
     }
 }