Add Linux support for the Bluetooth API.

extensions/common/api/_manifest_features.json

 // Copyright 2014 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/extensions.
 // 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 56 matching lines @@
     "max_manifest_version": 1
   },
   "bluetooth": [{
     // Note: The "bluetooth" manifest permission is used by the
     // chrome.bluetooth, chrome.bluetoothSocket and chrome.bluetoothLowEnergy
     // APIs.
     "channel": "stable",
     "extension_types": ["platform_app"],
     "platforms": ["chromeos", "win", "mac"]
   }, {
-    "channel": "stable",
+    "channel": "trunk",

[Ken Rockot(use gerrit already), 2015/09/23 20:12:53]

Is this really what you want to do?

[jdeokule, 2015/09/23 20:22:52]

Yes, we would like these whitelisted before it hits stable so we can test early.

[rkc, 2015/09/23 20:26:42]

Yep. Their team will need to use this with build just pulled from ToT.

[Ken Rockot(use gerrit already), 2015/09/23 20:27:21]

The old configuration whitelists the API on all channels stable and newer. The
configuration whitelists the API only on trunk, meaning dev, beta, and stable
channels will not have the whitelist active.

[rkc, 2015/09/23 20:32:34]

Whoops, that is exactly the opposite of what I meant. Fixed.
Done.

     "extension_types": ["platform_app"],
     "platforms": ["linux"],
     "whitelist": [
       "9E287A8257E58EFB13E89C86A4B75A3AC4B058D8",  // unit_tests browser_tests
       "1C93BD3CF875F4A73C0B2A163BB8FBDA8B8B3D80",  // http://crbug.com/396117
       "A3BC37E2148AC4E99BE4B16AF9D42DD1E592BBBE",  // http://crbug.com/396117
       "E703483CEF33DEC18B4B6DD84B5C776FB9182BDB",  // http://crbug.com/396117
       "307E96539209F95A1A8740C713E6998A73657D96",  // http://crbug.com/396117
       "4F25792AF1AA7483936DE29C07806F203C7170A0",  // http://crbug.com/407693
       "BD8781D757D830FC2E85470A1B6E8A718B7EE0D9",  // http://crbug.com/407693
@@ skipping 218 matching lines @@
       "extension_types": ["platform_app"],
       "location": "component"
     }
   ],
   "webview": {
     "channel": "stable",
     "extension_types": ["platform_app"],
     "min_manifest_version": 2
   }
 }