[vala] webkit2gtk: URI*.get_http_headers returns unowned Soup.MessageHeaders

[Rico Tzschichholz <ricotz src gnome org>]

commit 63fa61b473ee6966a3d87e06b5e682fc996b4e11
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Sep 19 18:31:05 2016 +0200

    webkit2gtk: URI*.get_http_headers returns unowned Soup.MessageHeaders
    
    Those are actually annotated "transfer none" in the webkit's source.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=741175

 vapi/metadata/WebKit2WebExtension-4.0.metadata |    2 ++
 vapi/webkit2gtk-web-extension-4.0.vapi         |    6 +++---
 2 files changed, 5 insertions(+), 3 deletions(-)
---
diff --git a/vapi/metadata/WebKit2WebExtension-4.0.metadata b/vapi/metadata/WebKit2WebExtension-4.0.metadata
index 65bfbfe..3fe3c18 100644
--- a/vapi/metadata/WebKit2WebExtension-4.0.metadata
+++ b/vapi/metadata/WebKit2WebExtension-4.0.metadata
@@ -8,4 +8,6 @@ Frame.get_javascript_* type="void*"
 
 DOMEventTarget.add_event_listener_with_closure.handler type="owned WebKit.DOM.EventTargetFunc"
 
+URIRequest.get_http_headers unowned
+URIResponse.get_http_headers unowned
 
diff --git a/vapi/webkit2gtk-web-extension-4.0.vapi b/vapi/webkit2gtk-web-extension-4.0.vapi
index 09d3115..0190e86 100644
--- a/vapi/webkit2gtk-web-extension-4.0.vapi
+++ b/vapi/webkit2gtk-web-extension-4.0.vapi
@@ -2869,7 +2869,7 @@ namespace WebKit {
        public class URIRequest : GLib.Object {
                [CCode (has_construct_function = false)]
                public URIRequest (string uri);
-               public Soup.MessageHeaders get_http_headers ();
+               public unowned Soup.MessageHeaders get_http_headers ();
                public unowned string get_http_method ();
                public unowned string get_uri ();
                public void set_uri (string uri);
@@ -2880,13 +2880,13 @@ namespace WebKit {
                [CCode (has_construct_function = false)]
                protected URIResponse ();
                public uint64 get_content_length ();
-               public Soup.MessageHeaders get_http_headers ();
+               public unowned Soup.MessageHeaders get_http_headers ();
                public unowned string get_mime_type ();
                public uint get_status_code ();
                public unowned string get_suggested_filename ();
                public unowned string get_uri ();
                public uint64 content_length { get; }
-               public Soup.MessageHeaders http_headers { owned get; }
+               public Soup.MessageHeaders http_headers { get; }
                public string mime_type { get; }
                public uint status_code { get; }
                public string suggested_filename { get; }