Fix deprecation warnings

components/script/dom/document.rs

@@ -1432,7 +1432,7 @@ impl<'a> DocumentMethods for &'a Document {
             Some(ref title) => {
                 // Steps 3-4.
                 let value = Node::collect_text_contents(title.r().children());
-                split_html_space_chars(&value).collect::<Vec<_>>().connect(" ")
+                split_html_space_chars(&value).collect::<Vec<_>>().join(" ")
             },
         }
     }

components/script/dom/htmloptionelement.rs

@@ -88,7 +88,7 @@ impl<'a> HTMLOptionElementMethods for &'a HTMLOptionElement {
         let mut content = String::new();
         collect_text(&node, &mut content);
         let v: Vec<&str> = split_html_space_chars(&content).collect();
-        v.connect(" ")
+        v.join(" ")
     }
 
     // https://www.whatwg.org/html/#dom-option-text

components/script/script_task.rs

@@ -1060,7 +1060,7 @@ impl ScriptTask {
         for it_page in self.root_page().iter() {
             urls.push(it_page.document().url().serialize());
         }
-        let path_seg = format!("url({})", urls.connect(", "));
+        let path_seg = format!("url({})", urls.join(", "));
         let reports = ScriptTask::get_reports(self.get_cx(), path_seg);
         reports_chan.send(reports);
     }