| // 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. |
| |
| #ifndef CHROME_BROWSER_BOOKMARKS_ENHANCED_BOOKMARKS_FEATURES_H_ |
| #define CHROME_BROWSER_BOOKMARKS_ENHANCED_BOOKMARKS_FEATURES_H_ |
| |
| #include <string> |
| |
| #include "build/build_config.h" |
| |
| namespace about_flags { |
| class FlagsStorage; |
| } // namespace about_flags |
| |
| class PrefService; |
| class Profile; |
| |
| // States for bookmark experiment. They are set by Chrome sync into |
| // sync_driver::prefs::kEnhancedBookmarksExperimentEnabled user preference and |
| // used for UMA reporting as well. |
| enum BookmarksExperimentState { |
| BOOKMARKS_EXPERIMENT_NONE, |
| BOOKMARKS_EXPERIMENT_ENABLED, |
| BOOKMARKS_EXPERIMENT_ENABLED_USER_OPT_OUT, |
| BOOKMARKS_EXPERIMENT_ENABLED_FROM_FINCH, |
| BOOKMARKS_EXPERIMENT_OPT_OUT_FROM_FINCH, |
| BOOKMARKS_EXPERIMENT_ENABLED_FROM_FINCH_USER_SIGNEDIN, |
| BOOKMARKS_EXPERIMENT_ENABLED_FROM_SYNC_UNKNOWN, |
| BOOKMARKS_EXPERIMENT_ENUM_SIZE |
| }; |
| |
| // Returns true and sets |extension_id| if bookmarks experiment enabled |
| // false if no bookmark experiment or extension id is empty. |
| bool GetBookmarksExperimentExtensionID(const PrefService* user_prefs, |
| std::string* extension_id); |
| |
| // Updates bookmark experiment state based on information from Chrome sync, |
| // Finch experiments, and command line flag. |
| void UpdateBookmarksExperimentState( |
| PrefService* user_prefs, |
| PrefService* local_state, |
| bool user_signed_in, |
| BookmarksExperimentState experiment_enabled_from_sync); |
| |
| // Same as UpdateBookmarksExperimentState, but the last argument with |
| // BOOKMARKS_EXPERIMENT_ENABLED_FROM_SYNC_UNKNOWN. |
| // Intended for performing initial configuration of bookmarks experiments |
| // when the browser is first initialized. |
| void InitBookmarksExperimentState(Profile* profile); |
| |
| // Sets flag to opt-in user into Finch experiment. |
| void ForceFinchBookmarkExperimentIfNeeded( |
| PrefService* local_state, |
| BookmarksExperimentState bookmarks_experiment_state); |
| |
| // Returns true if enhanced bookmarks experiment is running. |
| // Experiment could run by Chrome sync or by Finch. |
| // Note that this doesn't necessarily mean that enhanced bookmarks |
| // is enabled, e.g., user can opt out using a flag. |
| bool IsEnhancedBookmarksExperimentEnabled( |
| about_flags::FlagsStorage* flags_storage); |
| |
| #if defined(OS_ANDROID) |
| // Returns true if enhanced bookmark salient image prefetching is enabled. |
| // This can be controlled by field trial. |
| bool IsEnhancedBookmarkImageFetchingEnabled(const PrefService* user_prefs); |
| |
| // Returns true if enhanced bookmarks is enabled. |
| bool IsEnhancedBookmarksEnabled(const PrefService* user_prefs); |
| |
| #endif |
| |
| // Returns true when flag enable-dom-distiller is set or enabled from Finch. |
| bool IsEnableDomDistillerSet(); |
| |
| // Returns true when flag enable-sync-articles is set or enabled from Finch. |
| bool IsEnableSyncArticlesSet(); |
| |
| #endif // CHROME_BROWSER_BOOKMARKS_ENHANCED_BOOKMARKS_FEATURES_H_ |