RulesRegistry for declarative APIs.

chrome/common/extensions/api/webRequest.json

 [
   {
     "namespace": "webRequest",
     "types": [
       {
         "id": "RequestFilter",
         "type": "object",
         "description": "An object describing filters to apply to webRequest events.",
         "properties": {
           "urls": {
@@ skipping 69 matching lines @@
         "nodoc": true,
         "id": "RequestMatcher",
         "type": "object",
         "description": "Matches network events by various criteria. Experimental junk, do not use!",
         "properties": {
           "url": {
             "type": "string",
             "description": "Matches for a full URL",
             "optional": true
           },
-          "filterType": { "type": "string", "enum": ["net.RequestMatcher"] }
+          "instanceType": { "type": "string", "enum": ["webRequest.RequestMatcher"] }
         }
       },
       {
         "nodoc": true,
         "id": "CancelRequest",
         "description": "Declarative event action that cancels a network request. Experimental junk, do not use!",
         "type": "object",
         "properties": {
-          "actionType": { "type": "string", "enum": ["net.CancelRequest"] }
+          "instanceType": { "type": "string", "enum": ["webRequest.CancelRequest"] }
         }
       },
       {
         "nodoc": true,
         "id": "ModifyRequest",
         "description": "Declarative event action that modifies a network request. Experimental junk, do not use!",
         "type": "object",
         "properties": {
-          "actionType": { "type": "string", "enum": ["net.ModifyRequest"] }
+          "instanceType": { "type": "string", "enum": ["webRequest.ModifyRequest"] }
         }
       }
     ],
     "functions": [
       {
         "name": "addEventListener",
         "nodoc": true,
         "type": "function",
         "description": "Used internally to implement the special form of addListener for the webRequest events.",
         "parameters": [
@@ skipping 438 matching lines @@
         "options": {
           "supportsListeners": false,
           "supportsRules": true,
           "conditions": ["RequestMatcher"],
           "actions": ["CancelRequest", "ModifyRequest"]
         }
       }
     ]
   }
 ]