Extract AutofillDialogController interface and common utilities.

chrome/browser/ui/autofill/autofill_dialog_controller.cc

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/ui/autofill/autofill_dialog_controller.h"
+
+namespace autofill {
+
+AutofillDialogController::~AutofillDialogController() {}
+
+#if !defined(ENABLE_AUTOFILL_DIALOG)
+// static
+base::WeakPtr<AutofillDialogController>
+AutofillDialogController::Create(
+    content::WebContents* contents,
+    const FormData& form_structure,
+    const GURL& source_url,
+    const DialogType dialog_type,
+    const base::Callback<void(const FormStructure*,
+                              const std::string&)>& callback) {
+  NOTIMPLEMENTED();
+  return base::WeakPtr<AutofillDialogController>();
+}
+
+// static
+void AutofillDialogController::RegisterProfilePrefs(
+    user_prefs::PrefRegistrySyncable* registry) {}
+#endif  //  !defined(ENABLE_AUTOFILL_DIALOG)
+
+}  // namespace autofill