Post-cleanup settings reset.

chrome/browser/safe_browsing/chrome_cleaner/settings_resetter_win.h

+// Copyright 2017 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_SAFE_BROWSING_CHROME_CLEANER_SETTINGS_RESETTER_WIN_H_
+#define CHROME_BROWSER_SAFE_BROWSING_CHROME_CLEANER_SETTINGS_RESETTER_WIN_H_
+
+#include <memory>
+#include <vector>
+
+#include "base/callback.h"
+#include "base/macros.h"
+#include "chrome/browser/safe_browsing/settings_reset_prompt/default_settings_fetcher.h"
+
+class Profile;
+class ProfileResetter;
+
+namespace user_prefs {
+class PrefRegistrySyncable;
+}  // namespace user_prefs
+
+namespace safe_browsing {
+
+// Handles settings reset for user's profile to complete a Chrome Cleaner run.
+// Allows tagging a profile for resetting once a cleanup starts and resetting
+// settings once a cleanup is completed. Completed cleanup is identified by
+// annotations in the registry written by the cleaner. Non-static members can
+// only be called if PostCleanupSettingsResetter::IsEnabled() is true.
+class PostCleanupSettingsResetter {
+ public:
+  class Delegate {
+   public:
+    Delegate();
+    virtual ~Delegate();
+
+    virtual void FetchDefaultSettings(
+        DefaultSettingsFetcher::SettingsCallback callback);
+
+    virtual std::unique_ptr<ProfileResetter> GetProfileResetter(
+        Profile* profile);
+
+   private:
+    DISALLOW_COPY_AND_ASSIGN(Delegate);
+  };
+
+  PostCleanupSettingsResetter();
+  virtual ~PostCleanupSettingsResetter();
+
+  // Returns true if the in-browser cleaner UI is enabled.
+  static bool IsEnabled();
+
+  // Tags |profile| to have its settings reset once the current cleanup
+  // finishes.
+  void TagForResetting(Profile* profile);
+
+  // Resets settings for the profiles in |profiles| that are tagged for
+  // resetting if cleanup has completed. Invokes |done_callback| once all
+  // profiles in |profiles| have been reset.
+  void ResetTaggedProfiles(
+      std::vector<Profile*> profiles,
+      base::OnceClosure done_callback,
+      std::unique_ptr<PostCleanupSettingsResetter::Delegate> delegate);
+
+  // Registers the settings reset pending tracked preference.
+  static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
+
+ private:
+  // This object doesn't hold any state, so it's safe to delete it even after
+  // an async function is called. For example, it's fine to let the object get
+  // out of scope after invoking ResetTaggedProfiles() and there is no need
+  // to wait for the callback to be run to release it. If you are intending to
+  // change that assumption, please make sure you don't break the contract
+  // where this class is used.
+
+  DISALLOW_COPY_AND_ASSIGN(PostCleanupSettingsResetter);
+};
+
+}  // namespace safe_browsing
+
+#endif  // CHROME_BROWSER_SAFE_BROWSING_CHROME_CLEANER_SETTINGS_RESETTER_WIN_H_