[chrome-gnome-shell] constants: added support for FreeBSD.

[Yuri Konotopov <ykonotopov src gnome org>]

commit af166c612eeaeb5b2d4cf9dd6c616a922dfbb214
Author: Yuri Konotopov <ykonotopov gnome org>
Date:   Tue May 30 07:16:56 2017 +0400

    constants: added support for FreeBSD.
    
    Recently FreeBSD bug
    https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212925 was fixed and new
    value "freebsd" was added as "runtime.getPlatformInfo" value.

 extension/include/constants.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/extension/include/constants.js b/extension/include/constants.js
index 8596004..6b79ae4 100644
--- a/extension/include/constants.js
+++ b/extension/include/constants.js
@@ -9,7 +9,7 @@
  */
 
 GS_CHROME_ID                           = chrome.runtime.id;
-PLATFORMS_WHITELIST                    = ["linux", "openbsd"];
+PLATFORMS_WHITELIST                    = ["freebsd", "linux", "openbsd"];
 
 COMPAT = {
        IS_FIREFOX:      (typeof(InstallTrigger) !== 'undefined'),