| Index: Source/devtools/front_end/LayerTreeModel.js | 
| diff --git a/Source/devtools/front_end/LayerTreeModel.js b/Source/devtools/front_end/LayerTreeModel.js | 
| index 16292f3fb60acbd6ea5324e3f2f793d4d73cebc6..e4922bb1369f6543258fd2aa568d2e3179a3f409 100644 | 
| --- a/Source/devtools/front_end/LayerTreeModel.js | 
| +++ b/Source/devtools/front_end/LayerTreeModel.js | 
| @@ -109,6 +109,15 @@ WebInspector.LayerTreeModel.prototype = { | 
| }, | 
|  | 
| /** | 
| +     * @param {string} id | 
| +     * @return {WebInspector.Layer?} | 
| +     */ | 
| +    layerById: function(id) | 
| +    { | 
| +        return this._layersById[id]; | 
| +    }, | 
| + | 
| +    /** | 
| * @param{Array.<LayerTreeAgent.Layer>} payload | 
| */ | 
| _repopulate: function(payload) | 
|  |