use arc pointer

src/browser/main/tab/page/content/mod.rs

@@ -1,3 +1,5 @@
+use std::sync::Arc;
+
 use gtk::{Box, Orientation};
 
 pub struct Content {
@@ -6,10 +8,10 @@ pub struct Content {
 
 impl Content {
     // Construct
-    pub fn new() -> Content {
-        Self {
+    pub fn new() -> Arc<Content> {
+        Arc::new(Self {
             widget: Box::builder().orientation(Orientation::Vertical).build(),
-        }
+        })
     }
 
     // Getters