Second batch of fixing prefs registrations.

chrome/browser/ui/gtk/browser_window_gtk.h

Index: chrome/browser/ui/gtk/browser_window_gtk.h
diff --git a/chrome/browser/ui/gtk/browser_window_gtk.h b/chrome/browser/ui/gtk/browser_window_gtk.h
index 4d9e0c3ebec899289b7462b39ec902330ccbd08c..aad6e17ceb7d2cdaaa8b383c129a17c100257f07 100644
--- a/chrome/browser/ui/gtk/browser_window_gtk.h
+++ b/chrome/browser/ui/gtk/browser_window_gtk.h
@@ -41,7 +41,6 @@ class InfoBarContainerGtk;
 class InstantPreviewControllerGtk;
 class LocationBar;
 class PrefRegistrySyncable;
-class PrefService;
 class StatusBubbleGtk;
 class TabContentsContainerGtk;
 class TabStripGtk;
@@ -248,8 +247,7 @@ class BrowserWindowGtk
   // Returns the tab we're currently displaying in the tab contents container.
   content::WebContents* GetDisplayedTab();
 
-  static void RegisterUserPrefs(PrefService* prefs,
-                                PrefRegistrySyncable* registry);
+  static void RegisterUserPrefs(PrefRegistrySyncable* registry);
 
   // Tells GTK that the toolbar area is invalidated and needs redrawing. We
   // have this method as a hack because GTK doesn't queue the toolbar area for