Move dns API to dev channel

chrome/common/extensions/api/_api_features.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.
 
 // See c/c/e/features/* to understand this file, in particular feature.h,
 // simple_feature.h, and base_feature_provider.h.
 
 {
   "activityLogPrivate": {
     "dependencies": ["permission:activityLogPrivate"],
@@ skipping 140 matching lines @@
   },
   "diagnostics": {
     "dependencies": ["permission:diagnostics"],
     "extension_types": ["platform_app"],
     "contexts": ["blessed_extension"]
   },
   "dial": {
     "dependencies": ["permission:dial"],
     "contexts": ["blessed_extension"]
   },
+  "dns": {
+    "dependencies": ["permission:dns"],
+    "contexts": ["blessed_extension"]
+  },
   "downloads": {
     "dependencies": ["permission:downloads"],
     "contexts": ["blessed_extension"]
   },
   "downloadsInternal": {
     "internal": true,
     "channel": "stable",
     "contexts": ["blessed_extension", "unblessed_extension", "content_script"]
   },
   "echoPrivate": {
@@ skipping 15 matching lines @@
     "matches": ["<all_urls>"]
   },
   "experimental.accessibility": {
     "dependencies": ["permission:experimental"],
     "contexts": ["blessed_extension"]
   },
   "experimental.discovery": {
     "dependencies": ["permission:experimental"],
     "contexts": ["blessed_extension"]
   },
-  "experimental.dns": {
-    "dependencies": ["permission:experimental"],
-    "contexts": ["blessed_extension"]
-  },
   "experimental.history": {
     "dependencies": ["permission:history", "permission:experimental"],
     "contexts": ["blessed_extension"]
   },
   "experimental.identity": {
     "dependencies": ["permission:experimental"],
     "contexts": ["blessed_extension"]
   },
   "experimental.idltest": {
     "dependencies": ["permission:experimental"],
@@ skipping 386 matching lines @@
   "webview": {
     "internal": true,
     "dependencies": ["permission:webview"],
     "contexts": ["blessed_extension"]
   },
   "windows": {
     "dependencies": ["api:tabs"],
     "contexts": ["blessed_extension"]
   }
 }