Push the chrome.bluetooth ChromeOS Platform App API to stable for M33.

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.
 
 // See c/c/e/features/* to understand this file, in particular feature.h,
 // simple_feature.h, and base_feature_provider.h.
 
 {
   "activeTab": {
     "channel": "stable",
@@ skipping 71 matching lines @@
       "channel": "stable",
       "extension_types": ["platform_app"],
       "whitelist": [
         "5B5DA6D054D10DB917AF7D9EAE3C56044D1B0B03",  // http://crbug.com/286542
         "2843C1E82A9B6C6FB49308FDDF4E157B6B44BC2B",  // http://crbug.com/286542
         "3F596D221126DCDFD115CFAA2E5A3141806358AD"   // http://crbug.com/286542
       ]
     }
   ],
   "bluetooth": {
-    "channel": "dev",
+    "channel": "stable",
     "extension_types": ["platform_app"]
   },
   "bluetoothDevices": {
-    "channel": "dev",
+    "channel": "stable",
     "extension_types": ["platform_app"]
   },
   "bookmarkManagerPrivate": {
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app"],
     "whitelist": [
       "eemcgdkfndhakfknompkggombfjjjeno",         // Bookmark Manager
       "D5736E4B5CF695CB93A2FB57E4FDC6E5AFAB6FE2", // http://crbug.com/312900
       "D57DE394F36DC1C3220E7604C575D29C51A6C495"  // http://crbug.com/319444
     ]
@@ skipping 741 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": [
       "mfffpogegjflfpflabcdkioaeobkgjik"  // GAIA Component Extension
     ]
   }]
 }