DevTools: add "Jump to Relayout Boundary" context menu item in Elements panel

Source/devtools/protocol.json

Index: Source/devtools/protocol.json
diff --git a/Source/devtools/protocol.json b/Source/devtools/protocol.json
index cb6cf8f137231277e6b63ac3c0f60c3542834322..24b213d8973616479100be98573e73c71281ac1a 100644
--- a/Source/devtools/protocol.json
+++ b/Source/devtools/protocol.json
@@ -2213,6 +2213,17 @@
                 ],
                 "description": "Returns node id at given location.",
                 "hidden": true
+            },
+            {
+                "name": "getRelayoutBoundary",
+                "parameters": [
+                    { "name": "nodeId", "$ref": "NodeId", "description": "Id of the node." }
+                ],
+                "returns": [
+                    { "name": "nodeId", "$ref": "NodeId", "description": "Relayout boundary node id for the given node." }
+                ],
+                "description": "Returns the id of the nearest ancestor that is a relayout boundary.",
+                "hidden": true
             }
         ],
         "events": [