[Devtools] Fixed websocket initiators

third_party/WebKit/Source/core/inspector/browser_protocol.json

 {
     "version": { "major": "1", "minor": "1" },
     "domains": [{
         "domain": "Inspector",
         "hidden": true,
         "types": [],
         "commands": [
             {
                 "name": "enable",
                 "description": "Enables inspector domain notifications.",
@@ skipping 1337 matching lines @@
                     { "name": "timestamp", "$ref": "Timestamp", "description": "Timestamp." },
                     { "name": "response", "$ref": "WebSocketResponse", "description": "WebSocket response data." }
                 ],
                 "hidden": true
             },
             {
                 "name": "webSocketCreated",
                 "description": "Fired upon WebSocket creation.",
                 "parameters": [
                     { "name": "requestId", "$ref": "RequestId", "description": "Request identifier." },
-                    { "name": "url", "type": "string", "description": "WebSocket request URL." }
+                    { "name": "url", "type": "string", "description": "WebSocket request URL." },
+                    { "name": "initiator", "$ref": "Initiator", "optional": true, "description": "Request initiator." }
                 ],
                 "hidden": true
             },
             {
                 "name": "webSocketClosed",
                 "description": "Fired when WebSocket is closed.",
                 "parameters": [
                     { "name": "requestId", "$ref": "RequestId", "description": "Request identifier." },
                     { "name": "timestamp", "$ref": "Timestamp", "description": "Timestamp." }
                 ],
@@ skipping 2857 matching lines @@
                 "description": "Dispatches protocol message from the target with given id.",
                 "parameters": [
                     { "name": "targetId", "$ref": "TargetID" },
                     { "name": "message", "type": "string" }
                 ],
                 "handlers": ["browser"]
             }
         ]
     }]
 }