[epiphany/gnome-3-18] Fix EphyHistoryService

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 9114b5858376b36a679c678829a086cce3ccc458
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Tue Sep 5 12:16:07 2017 -0500

    Fix EphyHistoryService
    
    Accidentally deleted initialization of priv when backporting
    aaf8763d6615185faebde926ce7084437489f344
    
    https://bugzilla.gnome.org/show_bug.cgi?id=787316

 lib/history/ephy-history-service.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/lib/history/ephy-history-service.c b/lib/history/ephy-history-service.c
index 78ca078..a15ca79 100644
--- a/lib/history/ephy-history-service.c
+++ b/lib/history/ephy-history-service.c
@@ -320,6 +320,7 @@ ephy_history_service_class_init (EphyHistoryServiceClass *klass)
 static void
 ephy_history_service_init (EphyHistoryService *self)
 {
+  self->priv = EPHY_HISTORY_SERVICE_GET_PRIVATE (self);
 }
 
 EphyHistoryService *