[vala/staging] webkit2gtk-4.0: Update to 2.21.91

[Rico Tzschichholz <ricotz src gnome org>]

commit c2d9cae25a94b77e6d721f7813aa42d9d6ba60e2
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Fri Aug 17 13:24:37 2018 +0200

    webkit2gtk-4.0: Update to 2.21.91

 vapi/webkit2gtk-4.0.vapi | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/vapi/webkit2gtk-4.0.vapi b/vapi/webkit2gtk-4.0.vapi
index cab7ac9c4..99853147c 100644
--- a/vapi/webkit2gtk-4.0.vapi
+++ b/vapi/webkit2gtk-4.0.vapi
@@ -636,6 +636,8 @@ namespace WebKit {
                public bool get_enable_hyperlink_auditing ();
                public bool get_enable_java ();
                public bool get_enable_javascript ();
+               [Version (since = "2.22")]
+               public bool get_enable_media_capabilities ();
                [Version (since = "2.4")]
                public bool get_enable_media_stream ();
                [Version (since = "2.4")]
@@ -698,6 +700,8 @@ namespace WebKit {
                public void set_enable_hyperlink_auditing (bool enabled);
                public void set_enable_java (bool enabled);
                public void set_enable_javascript (bool enabled);
+               [Version (since = "2.22")]
+               public void set_enable_media_capabilities (bool enabled);
                [Version (since = "2.4")]
                public void set_enable_media_stream (bool enabled);
                [Version (since = "2.4")]
@@ -761,6 +765,8 @@ namespace WebKit {
                public bool enable_hyperlink_auditing { get; set construct; }
                public bool enable_java { get; set construct; }
                public bool enable_javascript { get; set construct; }
+               [Version (since = "2.22")]
+               public bool enable_media_capabilities { get; set construct; }
                [Version (since = "2.4")]
                public bool enable_media_stream { get; set construct; }
                [Version (since = "2.4")]