[4/5 blink] Shows the clients which are controlled by ServiceWorker in DevTools.

Source/devtools/protocol.json

 {
     "version": { "major": "1", "minor": "1" },
     "domains": [{
         "domain": "Inspector",
         "hidden": true,
         "types": [],
         "commands": [
             {
                 "name": "enable",
                 "description": "Enables inspector domain notifications.",
@@ skipping 4221 matching lines @@
                 "name": "deliverPushMessage",
                 "parameters": [
                     { "name": "origin", "type": "string" },
                     { "name": "registrationId", "type": "string" },
                     { "name": "data", "type": "string" }
                 ],
                 "handlers": ["browser"]
             },
             {
                 "name": "getTargetInfo",
-                "async": true,
                 "parameters": [
                     { "name": "targetId", "$ref": "TargetID" }
                 ],
                 "returns": [
                     { "name": "targetInfo","$ref": "TargetInfo" }
                 ],
                 "handlers": ["browser"]
             },
             {
                 "name": "activateTarget",
@@ skipping 765 matching lines @@
                 "name": "securityStateChanged",
                 "description": "The security state of the page changed.",
                 "parameters": [
                     { "name": "securityState", "$ref": "SecurityState", "description": "Security state." }
                 ],
                 "handlers": ["browser"]
             }
         ]
     }]
 }