Rename chrome.experimental.webRequest to chrome.webRequest and chrome.webRequestBlocking

chrome/common/extensions/api/extension_api.json

 [
   {
     "namespace": "extension",
     "types": [
       {
         "id": "MessageSender",
         "type": "object",
         "description": "An object containing information about the script context that sent a message or request.",
         "properties": {
           "tab": {"$ref": "Tab", "optional": true, "description":"This property will <b>only</b> be present when the connection was opened from a tab or content script."},
@@ skipping 5790 matching lines @@
               "transitionType": {"type": "string", "enum": ["link", "typed", "auto_bookmark", "auto_subframe", "manual_subframe", "generated", "start_page", "form_submit", "reload", "keyword", "keyword_generated"], "description": "Cause of the navigation. The same transition types as defined in the history API are used."},
               "transitionQualifiers": {"type": "array", "description": "A list of transition qualifiers.", "items:": {"type": "string", "enum": ["client_redirect", "server_redirect", "forward_back", "from_address_bar"]}},
               "timeStamp": {"type": "number", "description": "The time when the navigation was committed, in milliseconds since the epoch."}
             }
           }
         ]
       }
     ]
   },
   {
-    "namespace": "experimental.webRequest",
+    "namespace": "webRequest",
     "types": [
       {
         "id": "RequestFilter",
         "type": "object",
         "description": "An object describing filters to apply to webRequest events.",
         "properties": {
           "urls": {
             "type": "array",
             "optional": true,
             "description": "A list of URLs or URL patterns. Requests that cannot match any of the URLs will be filtered out.",
@@ skipping 3524 matching lines @@
                   }
                 }
               }
             ]
           }
         ]
       }
     ]
   }
 ]