DevTools: [CSS] Add CSS.setMultipleStyleTexts command to CSS domain

third_party/WebKit/Source/devtools/protocol.json

Index: third_party/WebKit/Source/devtools/protocol.json
diff --git a/third_party/WebKit/Source/devtools/protocol.json b/third_party/WebKit/Source/devtools/protocol.json
index 594698d6c47fda2a6d1b16326581597816263f0d..153dc8ef04189d8018843266212da85b7d96e491 100644
--- a/third_party/WebKit/Source/devtools/protocol.json
+++ b/third_party/WebKit/Source/devtools/protocol.json
@@ -3174,6 +3174,16 @@
                     { "name": "style", "$ref": "CSSStyle", "description": "Associated style declaration." }
                 ],
                 "description": "CSS keyframe rule representation."
+            },
+            {
+                "id": "StyleDeclarationEdit",
+                "type": "object",
+                "properties": [
+                    { "name": "styleSheetId", "$ref": "StyleSheetId", "description": "The css style sheet identifier." },
+                    { "name": "range", "$ref": "SourceRange", "description": "The range of the style text in the enclosing stylesheet." },
+                    { "name": "text", "type": "string", "description": "New style text."}
+                ],
+                "description": "A descriptor of operation to mutate style declaration text."
             }
         ],
         "commands": [
@@ -3279,16 +3289,14 @@
                 "description": "Modifies the keyframe rule key text."
             },
             {
-                "name": "setStyleText",
+                "name": "setStyleTexts",
                 "parameters": [
-                    { "name": "styleSheetId", "$ref": "StyleSheetId" },
-                    { "name": "range", "$ref": "SourceRange" },
-                    { "name": "text", "type": "string" }
+                    { "name": "edits", "type": "array", "items": { "$ref": "StyleDeclarationEdit" }}
                 ],
                 "returns": [
-                    { "name": "style", "$ref": "CSSStyle", "description": "The resulting style after the selector modification." }
+                    { "name": "styles", "type": "array", "items": { "$ref": "CSSStyle" }, "description": "The resulting styles after modification." }
                 ],
-                "description": "Modifies the style text."
+                "description": "Applies specified style edits one after another in the given order."
             },
             {
                 "name": "setMediaText",