[gnome-online-accounts] google: Bump credentials generation

[Debarshi Ray <debarshir src gnome org>]

commit 9182fb378614abb2ff0245fe71a753f22eaaa906
Author: Debarshi Ray <debarshir gnome org>
Date:   Tue Jun 11 16:58:21 2013 +0200

    google: Bump credentials generation
    
    Access to the following were turned on in the Google APIs Console:
     - Calendar API
     - Google Calendar CalDAV API
     - Google Contacts CardDAV API
    
    Of these, only the last two are new. We were already requesting the
    scope for Calendar API, but looks like the APIs Console is the way
    to go now. Interestingly the APIs Console does not list all the other
    services that we are interested in, or it is does but is not obvious
    to me.
    
    In any case we need access to their new CalDAV API which works with
    OAuth2 because that would let us work with 2-factor authenticated
    accounts again.
    
    See: https://bugzilla.gnome.org/show_bug.cgi?id=686804
         https://bugzilla.gnome.org/show_bug.cgi?id=688364

 src/goabackend/goagoogleprovider.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/goabackend/goagoogleprovider.c b/src/goabackend/goagoogleprovider.c
index 8271711..79f5f73 100644
--- a/src/goabackend/goagoogleprovider.c
+++ b/src/goabackend/goagoogleprovider.c
@@ -148,7 +148,7 @@ get_scope (GoaOAuth2Provider *provider)
 static guint
 get_credentials_generation (GoaProvider *provider)
 {
-  return 3;
+  return 4;
 }
 
 static const gchar *