DevTools: enable layers pane outside of experiements.

third_party/WebKit/Source/devtools/front_end/layers/module.json

Index: third_party/WebKit/Source/devtools/front_end/layers/module.json
diff --git a/third_party/WebKit/Source/devtools/front_end/layers/module.json b/third_party/WebKit/Source/devtools/front_end/layers/module.json
index 0415c3b131f06c2a27e7daa9adb6e57470b538cd..db4d8ecbe238f85fb2e6efce72da79928b5c51e7 100644
--- a/third_party/WebKit/Source/devtools/front_end/layers/module.json
+++ b/third_party/WebKit/Source/devtools/front_end/layers/module.json
@@ -1,22 +1,18 @@
 {
     "extensions": [
         {
-            "type": "@WebInspector.Panel",
-            "name": "layers",
-            "title": "Layers",
-            "order": 100,
-            "className": "WebInspector.LayersPanel"
-        },
-        {
-            "type": "@WebInspector.Revealer",
-            "contextTypes": ["WebInspector.DeferredLayerTree"],
-            "className": "WebInspector.LayersPanel.LayerTreeRevealer"
+            "type": "view",
+            "location": "drawer-view",

[alph, 2016/09/03 09:03:29]

Does it fit there? It has an extra split view.

+            "id": "layers",
+            "title": "Layer tree",
+            "persistence": "closeable",
+            "order": 20,
+            "className": "WebInspector.LayersPane"
         }
     ],
     "dependencies": ["timeline"],

[caseq, 2016/09/07 22:25:24]

Let's reverse this dependency -- I don't think we want a small drawer view to
depend on a much bigger panel that would mostly remain unused.

-    "experiment": "layersPanel",
     "scripts": [
         "LayerPaintProfilerView.js",
-        "LayersPanel.js"
+        "LayersPane.js"
     ]
 }