Migrate Declarative API bindings to new JSON objects generated by JSON compiler

chrome/common/extensions/api/experimental.declarative.json

 [
   {
     "namespace": "experimental.declarative",
     "internal": true,
     "types": [
       {
         "id": "Rule",
         "type": "object",
         "description": "Description of a declarative rule for handling events.",
         "properties": {
@@ skipping 20 matching lines @@
         }
       }
     ],
     "functions": [
       {
         "name": "addRules",
         "type": "function",
         "description": "Registers rules to handle events.",
         "parameters": [
           {
-            "name": "event",
+            "name": "eventName",
             "type": "string",
             "description": "Name of the event this function affects."
           },
           {
             "name": "rules",
             "type": "array",
             "items": {"$ref": "Rule"},
             "description": "Rules to be registered. These do not replace previously registered rules."
           },
           {
@@ skipping 11 matching lines @@
             "description": "Called with registered rules."
           }
         ]
       },
       {
         "name": "getRules",
         "type": "function",
         "description": "Returns currently registered rules.",
         "parameters": [
           {
-            "name": "event",
+            "name": "eventName",
             "type": "string",
             "description": "Name of the event this function affects."
           },
           {
             "name": "ruleIdentifiers",
             "optional": "true",
             "type": "array",
             "items": {"type": "string"},
             "description": "If an array is passed, only rules with identifiers contained in this array are returned."
           },
@@ skipping 11 matching lines @@
             "description": "Called with registered rules."
           }
         ]
       },
       {
         "name": "removeRules",
         "type": "function",
         "description": "Unregisters currently registered rules.",
         "parameters": [
           {
-            "name": "event",
+            "name": "eventName",
             "type": "string",
             "description": "Name of the event this function affects."
           },
           {
             "name": "ruleIdentifiers",
             "optional": "true",
             "type": "array",
             "items": {"type": "string"},
             "description": "If an array is passed, only rules with identifiers contained in this array are unregistered."
           },
           {
             "name": "callback",
             "optional": true,
             "type": "function",
             "parameters": [],
             "description": "Called when rules were unregistered."
           }
         ]
       }
     ]
   }
 ]