Disable bluetoothPrivate on unsupported platforms

chrome/common/extensions/api/_permission_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 permissions for extension APIs 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 166 matching lines @@
         "3F596D221126DCDFD115CFAA2E5A3141806358AD",  // http://crbug.com/286542
         "F7FA7ABC1ECB89BA8EE6656847EFABBF43BB9BCA",  // http://crbug.com/320952
         "4B1D0E19C6C43C008C44A8278C8B5BFE15ABEB3C",  // http://crbug.com/320952
         "4FE45FA56EF6A25FDE8C302C44045CA9CE8A605A"   // http://crbug.com/320952
       ]
     }
   ],
   "bluetoothPrivate": {
     "channel": "stable",
     "extension_types": ["platform_app"],
+    "platforms": ["chromeos", "win", "mac"],
     "whitelist": [
       "1C93BD3CF875F4A73C0B2A163BB8FBDA8B8B3D80",  // http://crbug.com/387169
       "A3BC37E2148AC4E99BE4B16AF9D42DD1E592BBBE",  // http://crbug.com/387169
       "E703483CEF33DEC18B4B6DD84B5C776FB9182BDB",  // http://crbug.com/387169
       "307E96539209F95A1A8740C713E6998A73657D96"  // http://crbug.com/387169
     ]
   },
   "bookmarkManagerPrivate": {
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app"],
@@ skipping 898 matching lines @@
     // Only allowed for whitelisted extensions until all the caveats are
     // addressed. Tracked in crbug/285151.
     "channel": "stable",
     "extension_types": ["extension"],
     "location": "component",
     "whitelist": [
       "D519188F86D9ACCEE0412007B227D9936EB9676B"  // GAIA Component Extension
     ]
   }]
 }