Extract AutofillDialogController interface and common utilities.

chrome/browser/ui/autofill/autofill_dialog_controller.h

Index: chrome/browser/ui/autofill/autofill_dialog_controller.h
diff --git a/chrome/browser/ui/autofill/autofill_dialog_controller.h b/chrome/browser/ui/autofill/autofill_dialog_controller.h
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+// Copyright (c) 2012 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.
+
+#ifndef CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_DIALOG_CONTROLLER_H_
+#define CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_DIALOG_CONTROLLER_H_
+
+#include <string>
+
+#include "base/callback.h"
+#include "base/memory/weak_ptr.h"
+#include "base/strings/string16.h"
+#include "chrome/browser/ui/autofill/autofill_dialog_types.h"
+#include "components/autofill/content/browser/autocheckout_steps.h"
+#include "components/autofill/core/browser/form_structure.h"
+
+class GURL;
+
+namespace content {
+class WebContents;
+}
+
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
+namespace autofill {
+
+// This class defines the interface to the controller for TabAutofillManager.
+class AutofillDialogController {
+ public:
+  virtual ~AutofillDialogController();
+
+  // Creates the AutofillDialogController.
+  static base::WeakPtr<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);
+
+  // Registers profile preferences.
+  static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
+
+  // Shows the Autofill dialog.
+  virtual void Show() = 0;
+
+  // Hides the Autofill dialog.
+  virtual void Hide() = 0;
+
+  // Called when the tab hosting this dialog is activated by a user gesture.
+  // Used to trigger a refresh of the user's Wallet data.
+  virtual void TabActivated() = 0;
+
+  // Adds a step in the flow to the Autocheckout UI.
+  virtual void AddAutocheckoutStep(AutocheckoutStepType step_type) = 0;
+
+  // Updates the status of a step in the Autocheckout UI.
+  virtual void UpdateAutocheckoutStep(
+      AutocheckoutStepType step_type,
+      AutocheckoutStepStatus step_status) = 0;
+
+  // Called when there is an error in an active Autocheckout flow.
+  virtual void OnAutocheckoutError() = 0;
+
+  // Called when an Autocheckout flow completes successfully.
+  virtual void OnAutocheckoutSuccess() = 0;
+
+  // Returns the dialog type.
+  virtual DialogType GetDialogType() const = 0;
+};
+
+}  // namespace autofill
+
+#endif  // CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_DIALOG_CONTROLLER_H_