Extract AutofillDialogController interface and common utilities.

chrome/browser/prefs/browser_prefs.cc

Index: chrome/browser/prefs/browser_prefs.cc
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index 957e6555b435cc210827b9c571488bf187d9a7c7..b0228e8ca2e23846c098c64a44a4c9cba0c63244 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -72,7 +72,7 @@
 #include "chrome/browser/ui/alternate_error_tab_observer.h"
 #include "chrome/browser/ui/app_list/app_list_service.h"
 #include "chrome/browser/ui/autofill/autofill_credit_card_bubble_controller.h"
-#include "chrome/browser/ui/autofill/autofill_dialog_controller_impl.h"
+#include "chrome/browser/ui/autofill/autofill_dialog_controller.h"
 #include "chrome/browser/ui/browser_ui_prefs.h"
 #include "chrome/browser/ui/network_profile_bubble.h"
 #include "chrome/browser/ui/prefs/prefs_tab_helper.h"
@@ -282,7 +282,7 @@ void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
   AlternateErrorPageTabObserver::RegisterProfilePrefs(registry);
   apps::RegisterProfilePrefs(registry);
   autofill::AutofillCreditCardBubbleController::RegisterUserPrefs(registry);
-  autofill::AutofillDialogControllerImpl::RegisterProfilePrefs(registry);
+  autofill::AutofillDialogController::RegisterProfilePrefs(registry);
   autofill::AutofillManager::RegisterProfilePrefs(registry);
   BookmarkPromptPrefs::RegisterProfilePrefs(registry);
   bookmark_utils::RegisterProfilePrefs(registry);