Fix lint

qutebrowser/browser/browsertab.py

@@ -827,7 +827,7 @@ class AbstractTab(QWidget):
         if predict:
             self.predicted_navigation.emit(url)
 
-    def openurl(self, url):
+    def openurl(self, url, *, predict=True):
         raise NotImplementedError
 
     def reload(self, *, force=False):

qutebrowser/browser/webkit/webkittab.py

@@ -671,8 +671,8 @@ class WebKitTab(browsertab.AbstractTab):
         settings = widget.settings()
         settings.setAttribute(QWebSettings.PrivateBrowsingEnabled, True)
 
-    def openurl(self, url):
-        self._openurl_prepare(url)
+    def openurl(self, url, *, predict=True):
+        self._openurl_prepare(url, predict=predict)
         self._widget.openurl(url)
 
     def url(self, requested=False):

qutebrowser/mainwindow/tabbedbrowser.py

@@ -536,7 +536,8 @@ class TabbedBrowser(QWidget):
             else:
                 self.widget.setTabIcon(i, QIcon())
                 if config.val.tabs.tabs_are_windows:
-                    self.widget.window().setWindowIcon(self.default_window_icon)
+                    window = self.widget.window()
+                    window.setWindowIcon(self.default_window_icon)
 
     @pyqtSlot()
     def on_load_started(self, tab):