DevTools: [CSS] Add CSS.editRangeInStyleSheetText() to the protocol

Source/devtools/protocol.json

Index: Source/devtools/protocol.json
diff --git a/Source/devtools/protocol.json b/Source/devtools/protocol.json
index a416fc447e1c9073b6b8c7c98149cb8d92c31d2c..2109adf79ef4c03a1a08a51a70799909d4686abb 100644
--- a/Source/devtools/protocol.json
+++ b/Source/devtools/protocol.json
@@ -2644,7 +2644,20 @@
                     { "name": "styleSheetId", "$ref": "StyleSheetId" },
                     { "name": "text", "type": "string" }
                 ],
-                "description": "Sets the new stylesheet text, thereby invalidating all existing <code>CSSStyleId</code>'s and <code>CSSRuleId</code>'s contained by this stylesheet."
+                "description": "Sets the new stylesheet text. This will invalidate all existing <code>CSSStyleId</code>s and <code>CSSRuleId</code>s contained by this stylesheet."
+            },
+            {
+                "name": "editRangeInStyleSheetText",
+                "parameters": [
+                    { "name": "styleSheetId", "$ref": "StyleSheetId" },
+                    { "name": "range", "$ref": "SourceRange", "description": "Source range to be replaced in stylesheet text." },
+                    { "name": "text", "type": "string", "description": "Text that will replace given range in the stylesheet text." }
+                ],
+                "returns": [
+                    { "name": "rule", "$ref": "CSSRule", "optional": true, "description": "The resulting rule after the selector modification." },
+                    { "name": "style", "$ref": "CSSStyle", "optional": true, "description": "The updated style which the editing was scoped to." }
+                ],
+                "description": "Replace stylesheet text range with a new text. This will invalidate all existing <code>CSSStyleId</code>s and <code>CSSRuleId</code>s contained by this stylesheet."
             },
             {
                 "name": "setPropertyText",