Devtools Animations: Show subtree animations for a given node

Source/devtools/front_end/sdk/AnimationModel.js

Index: Source/devtools/front_end/sdk/AnimationModel.js
diff --git a/Source/devtools/front_end/sdk/AnimationModel.js b/Source/devtools/front_end/sdk/AnimationModel.js
index 92b1f2fabff54898b7fe68bb03f9e3a655a15af2..9a8ba8fdaa96181a5a49c6b63f22987a7ca3b7ca 100644
--- a/Source/devtools/front_end/sdk/AnimationModel.js
+++ b/Source/devtools/front_end/sdk/AnimationModel.js
@@ -17,9 +17,10 @@ WebInspector.AnimationModel = function(target) {
 WebInspector.AnimationModel.prototype = {
     /**
      * @param {!DOMAgent.NodeId} nodeId
+     * @param {boolean} showSubtreeAnimations
      * @param {function(?Array.<!WebInspector.AnimationModel.AnimationPlayer>)} callback
      */
-    animationPlayers: function(nodeId, callback)
+    animationPlayers: function(nodeId, showSubtreeAnimations, callback)
     {
         /**
          * @param {?Protocol.Error} error
@@ -37,7 +38,7 @@ WebInspector.AnimationModel.prototype = {
         }
 
         var target = this.target();
-        this._agent.getAnimationPlayersForNode(nodeId, mycallback);
+        this._agent.getAnimationPlayersForNode(nodeId, showSubtreeAnimations, mycallback);
     },
 
     __proto__: WebInspector.SDKModel.prototype
@@ -162,7 +163,6 @@ WebInspector.AnimationModel.AnimationPlayer.prototype = {
         function mycallback(error, currentTime, isRunning)
         {
             if (error) {
-                console.error(error);
                 return;
             }
             callback(currentTime, isRunning);
@@ -261,6 +261,14 @@ WebInspector.AnimationModel.AnimationNode.prototype = {
     },
 
     /**
+     * @return {?WebInspector.DOMNode}
+     */
+    node: function()
+    {
+        return this.target().domModel.nodeForId(this._payload.node);
+    },
+
+    /**
      * @return {?WebInspector.AnimationModel.KeyframesRule}
      */
     keyframesRule: function()