[librsvg: 16/38] Handle::read_stream_sync(): Take a &self, not &mut self

[Federico Mena Quintero <federico src gnome org>]

commit f0f866e6cfc1c10d6bd77a293dbbb827ed8aa7f0
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Jan 23 10:50:09 2019 -0600

    Handle::read_stream_sync(): Take a &self, not &mut self

 rsvg_internals/src/handle.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/rsvg_internals/src/handle.rs b/rsvg_internals/src/handle.rs
index 95f80ff7..efba43b7 100644
--- a/rsvg_internals/src/handle.rs
+++ b/rsvg_internals/src/handle.rs
@@ -209,7 +209,7 @@ impl Handle {
     }
 
     pub fn read_stream_sync(
-        &mut self,
+        &self,
         stream: &gio::InputStream,
         cancellable: Option<&gio::Cancellable>,
     ) -> Result<(), LoadingError> {