Devtools: [LayoutEditor] highlight changed value in the SSP

Source/devtools/protocol.json

Index: Source/devtools/protocol.json
diff --git a/Source/devtools/protocol.json b/Source/devtools/protocol.json
index 9534cba0b1cae21f447a76fdf85831286c7f009d..3f290c6cf5a2c5d948ded741b147e67f48ed8868 100644
--- a/Source/devtools/protocol.json
+++ b/Source/devtools/protocol.json
@@ -3226,6 +3226,13 @@
                     { "name": "styleSheetId", "$ref": "StyleSheetId", "description": "Identifier of the removed stylesheet." }
                 ],
                 "description": "Fired whenever an active document stylesheet is removed."
+            },
+            {
+                "name": "layoutEditorChange",
+                "parameters": [
+                    { "name": "styleSheetId", "$ref": "StyleSheetId", "description": "Identifier of the stylesheet where the modification occurred."},
+                    { "name": "changeRange", "$ref": "SourceRange", "description": "Range where the modification occurred."}
+                ]
             }
         ]
     },