[vala/0.36: 165/212] gstreamer-1.0: Cherry-pick some fixes from 0.38

[Rico Tzschichholz <ricotz src gnome org>]

commit 0832b17e609112df82f13c26279c3ddda43c9c24
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Jan 29 23:06:59 2018 +0100

    gstreamer-1.0: Cherry-pick some fixes from 0.38

 vapi/gstreamer-base-1.0.vapi |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/vapi/gstreamer-base-1.0.vapi b/vapi/gstreamer-base-1.0.vapi
index b2b88b9..d319546 100644
--- a/vapi/gstreamer-base-1.0.vapi
+++ b/vapi/gstreamer-base-1.0.vapi
@@ -596,7 +596,7 @@ namespace Gst {
                        [NoWrapper]
                        public virtual Gst.FlowReturn alloc (uint64 offset, uint size, Gst.Buffer buf);
                        [NoWrapper]
-                       public virtual Gst.FlowReturn create (uint64 offset, uint size, Gst.Buffer buf);
+                       public virtual Gst.FlowReturn create (uint64 offset, uint size, out Gst.Buffer buf);
                        [NoWrapper]
                        public virtual bool decide_allocation (Gst.Query query);
                        [NoWrapper]
@@ -616,7 +616,7 @@ namespace Gst {
                        [NoWrapper]
                        public virtual bool get_size (uint64 size);
                        [NoWrapper]
-                       public virtual void get_times (Gst.Buffer buffer, Gst.ClockTime start, Gst.ClockTime 
end);
+                       public virtual void get_times (Gst.Buffer buffer, out Gst.ClockTime start, out 
Gst.ClockTime end);
                        public bool is_async ();
                        [NoWrapper]
                        public virtual bool is_seekable ();