Lazily load API schemas from resource files and convert all APIs to features

chrome/common/extensions/api/extension.json

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 [
   {
     "namespace": "extension",
     "compiler_options": {
       "implemented_in": "chrome/browser/extensions/api/module/module.h"
     },
     "types": [
       {
         "id": "MessageSender",
         "type": "object",
         "description": "An object containing information about the script context that sent a message or request.",
         "properties": {
           "tab": {"$ref": "tabs.Tab", "optional": true, "description":"This property will <b>only</b> be present when the connection was opened from a tab or content script."},
           "id": {"type": "string", "description": "The extension ID of the extension that opened the connection."}
         }
       }
     ],
     "properties": {
       "lastError": {
         "type": "object",
         "optional": true,
-        "unprivileged": true,
         "description": "Set for the lifetime of a callback if an ansychronous extension api has resulted in an error. If no error has occured lastError will be <var>undefined</var>.",
         "properties": {
           "message": { "type": "string", "description": "Description of the error that has taken place." }
         }
       },
       "inIncognitoContext": {
         "type": "boolean",
         "optional": true,
-        "unprivileged": true,
         "description": "True for content scripts running inside incognito tabs, and for extension pages running inside an incognito process. The latter only applies to extensions with 'split' incognito_behavior."
       }
     },
     "functions": [
       {
         "name": "sendRequest",
         "nocompile": true,
         "nodoc": true,
         "type": "function",
         "allowAmbiguousOptionalArguments": true,
-        "unprivileged": true,
         "description": "Deprecated: Please use sendMessage.",
         "parameters": [
           {"type": "string", "name": "extensionId", "optional": true, "description": "The extension ID of the extension you want to connect to. If omitted, default is your own extension."},
           { "type": "any", "name": "request" },
           {
             "type": "function",
             "name": "responseCallback",
             "optional": true,
             "parameters": [
               {
                 "name": "response",
                 "type": "any",
                 "description": "The JSON response object sent by the handler of the request. If an error occurs while connecting to the extension, the callback will be called with no arguments and $ref:runtime.lastError will be set to the error message."
               }
             ]
           }
         ]
       },
       {
         "name": "getURL",
         "nocompile": true,
         "type": "function",
-        "unprivileged": true,
         "description": "Converts a relative path within an extension install directory to a fully-qualified URL.",
         "parameters": [
           {
             "type": "string",
             "name": "path",
             "description": "A path to a resource within an extension expressed relative to its install directory."
           }
         ],
         "returns": {
           "type": "string",
@@ skipping 103 matching lines @@
           {"type": "string", "name": "data", "maxLength": 1024}
         ]
       }
     ],
     "events": [
       {
         "name": "onRequest",
         "nodoc": true,
         "type": "function",
         "anonymous": true,
-        "unprivileged": true,
         "description": "Deprecated: please use onMessage.",
         "parameters": [
           {"name": "request", "type": "any", "description": "The request sent by the calling script."},
           {"name": "sender", "$ref": "MessageSender" },
           {"name": "sendResponse", "type": "function", "description": "Function to call (at most once) when you have a response. The argument should be any JSON-ifiable object, or undefined if there is no response. If you have more than one <code>onRequest</code> listener in the same document, then only one may send a response." }
         ]
       },
       {
         "name": "onRequestExternal",
         "nodoc": true,
         "type": "function",
         "anonymous": true,
         "description": "Deprecated: please use onMessageExternal.",
         "parameters": [
           {"name": "request", "type": "any", "description": "The request sent by the calling script."},
           {"name": "sender", "$ref": "MessageSender" },
           {"name": "sendResponse", "type": "function", "description": "Function to call when you have a response. The argument should be any JSON-ifiable object, or undefined if there is no response." }
         ]
       }
     ]
   }
 ]