[epiphany] web-dom-utils: Fix uninitialized variable warning

[Gabriel Ivașcu <gabrielivascu src gnome org>]

commit d8fbdc86c6049d497d2e7003459d69814d35acfc
Author: Gabriel Ivascu <gabrielivascu gnome org>
Date:   Sun Aug 27 00:00:17 2017 +0300

    web-dom-utils: Fix uninitialized variable warning

 embed/web-extension/ephy-web-dom-utils.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/embed/web-extension/ephy-web-dom-utils.c b/embed/web-extension/ephy-web-dom-utils.c
index 3d362e2..d57dea7 100644
--- a/embed/web-extension/ephy-web-dom-utils.c
+++ b/embed/web-extension/ephy-web-dom-utils.c
@@ -555,7 +555,7 @@ ephy_web_dom_utils_find_form_auth_elements (WebKitDOMHTMLFormElement *form,
   WebKitDOMHTMLCollection *elements;
   WebKitDOMHTMLInputElement *username_node = NULL;
   WebKitDOMHTMLInputElement *password_node = NULL;
-  gint i, password_node_index;
+  gint i, password_node_index = 0;
   GPtrArray *password_nodes = NULL;
   gchar **passwords;
   InputElementData *first_password_node_data = NULL;