GTK: A bunch more removal of deprecated raw GtkWidget access, focusing on GtkWidget->window

chrome/browser/ui/gtk/gtk_chrome_link_button.cc

Index: chrome/browser/ui/gtk/gtk_chrome_link_button.cc
diff --git a/chrome/browser/ui/gtk/gtk_chrome_link_button.cc b/chrome/browser/ui/gtk/gtk_chrome_link_button.cc
index 451126d6aad3fff269ac93ea7e95b1d150b1d1e5..6a68bdd940ea839fcfe2f15a7071755c3de23b59 100644
--- a/chrome/browser/ui/gtk/gtk_chrome_link_button.cc
+++ b/chrome/browser/ui/gtk/gtk_chrome_link_button.cc
@@ -139,7 +139,8 @@ static gboolean gtk_chrome_link_button_expose(GtkWidget* widget,
   if (gtk_widget_has_focus(widget)) {
     GtkAllocation allocation;
     gtk_widget_get_allocation(widget, &allocation);
-    gtk_paint_focus(widget->style, widget->window,
+    gtk_paint_focus(gtk_widget_get_style(widget),
+                    gtk_widget_get_window(widget),
                     gtk_widget_get_state(widget),
                     &event->area, widget, NULL,
                     allocation.x, allocation.y,
@@ -152,7 +153,8 @@ static gboolean gtk_chrome_link_button_expose(GtkWidget* widget,
 static void gtk_chrome_link_button_enter(GtkButton* button) {
   GtkWidget* widget = GTK_WIDGET(button);
   GtkChromeLinkButton* link_button = GTK_CHROME_LINK_BUTTON(button);
-  gdk_window_set_cursor(widget->window, link_button->hand_cursor);
+  gdk_window_set_cursor(gtk_widget_get_window(widget),
+                        link_button->hand_cursor);
 }
 
 static void gtk_chrome_link_button_leave(GtkButton* button) {