Whitelist extensions for oauth2 auto_approve.

chrome/common/extensions/api/_manifest_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.
 
 // This features file defines manifest keys implemented under src/chrome.
 // See extensions/common/features/* to understand this file, in particular
 // feature.h, simple_feature.h, and base_feature_provider.h.
 
 // To add a new whitelisted ID, SHA-1 it and force it to uppercase. In Bash:
 //
@@ skipping 268 matching lines @@
     "extension_types": [
       "extension", "platform_app"
     ],
     "whitelist": [
       "mdbihdcgjmagbcapkhhkjbbdlkflmbfo",  // unit_tests
       "pafkbggdmjlpgkdkcbjmhmfcdpncadgh",  // Google Now
       "nmmhkkegccagdldgiimedpiccmgmieda",  // In-app payments support app.
       "4B1D0E19C6C43C008C44A8278C8B5BFE15ABEB3C",
       "F7FA7ABC1ECB89BA8EE6656847EFABBF43BB9BCA",
       "1A26E32DE447A17CBE5E9750CDBA78F58539B39C",  // TODO(rockot): Kill these.
-      "E61F841D8210B6A9891E5384CB665FBED31FCD7B"   // http://crbug.com/281715
+      "E61F841D8210B6A9891E5384CB665FBED31FCD7B",  // http://crbug.com/281715
+
+      // TODO(joaodasilva): remove these two once we have the new policy to
+      // grant auto approval by ID. http://crbug.com/399392
+      "A8208CCC87F8261AFAEB6B85D5E8D47372DDEA6B",
+      "A4577D8C2AF4CF26F40CBCA83FFA4251D6F6C8F8",

[not at google - send to devlin, 2014/08/04 20:09:24]

I expect the trailing comma will break

[Joao da Silva, 2014/08/04 20:15:24]

So this JSON-esque format was modified to parse comments but not trailing commas
:-) Done!

BTW, there is an annoying presubmit error because these files can't be parsed as
vanilla JSON.

     ]
   },
   "omnibox": {
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app"]
   },
   "optional_permissions": {
     "channel": "stable",
     "extension_types": [
       "extension", "legacy_packaged_app", "hosted_app", "platform_app"
@@ skipping 88 matching lines @@
   },
   "url_handlers": {
     "channel": "stable",
     "extension_types": ["platform_app"]
   },
   "version": {
     "channel": "stable",
     "extension_types": "all"
   }
 }