[Extensions] Remove the Infobar API

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",
     "description": "The <code>chrome.extension</code> API has utilities that can be used by any extension page. It includes support for exchanging messages between an extension and its content scripts or between extensions, as described in detail in <a href='messaging'>Message Passing</a>.",
     "compiler_options": {
       "implemented_in": "chrome/browser/extensions/api/module/module.h"
@@ skipping 61 matching lines @@
         "type": "function",
         "description": "Returns an array of the JavaScript 'window' objects for each of the pages running inside the current extension.",
         "parameters": [
           {
             "type": "object",
             "name": "fetchProperties",
             "optional": true,
             "properties": {
               "type": {
                 "type": "string",
-                "enum": ["tab", "infobar", "notification", "popup"],
+                "enum": ["tab", "notification", "popup"],
                 "optional": true,
-                "description": "The type of view to get. If omitted, returns all views (including background pages and tabs). Valid values: 'tab', 'infobar', 'notification', 'popup'."
+                "description": "The type of view to get. If omitted, returns all views (including background pages and tabs). Valid values: 'tab', 'notification', 'popup'."
               },
               "windowId": {
                 "type": "integer",
                 "optional": true,
                 "description": "The window to restrict the search to. If omitted, returns all views."
               }
             }
           }
         ],
         "returns": {
@@ skipping 111 matching lines @@
         "description": "Fired when a request is sent from another extension.",
         "parameters": [
           {"name": "request", "type": "any", "optional": true, "description": "The request sent by the calling script."},
           {"name": "sender", "$ref": "runtime.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." }
         ]
       }
     ]
   }
 ]