[Sync] Move SyncPrefs into sync_driver component

components/sync_driver/pref_names.h

Index: components/sync_driver/pref_names.h
diff --git a/components/sync_driver/pref_names.h b/components/sync_driver/pref_names.h
new file mode 100644
index 0000000000000000000000000000000000000000..61594c9b6200516a8cea740e56964ace41677304
--- /dev/null
+++ b/components/sync_driver/pref_names.h
@@ -0,0 +1,66 @@
+// Copyright 2014 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.
+
+// Constants for the names of various sync preferences, for easier changing.
+
+#include "build/build_config.h"
+
+namespace sync_driver {
+
+namespace prefs {
+
+extern const char kEnhancedBookmarksExperimentEnabled[];
+extern const char kEnhancedBookmarksExtensionId[];
+
+extern const char kSyncLastSyncedTime[];
+extern const char kSyncHasAuthError[];
+extern const char kSyncHasSetupCompleted[];
+extern const char kSyncKeepEverythingSynced[];
+
+extern const char kSyncAppList[];
+extern const char kSyncAppNotifications[];
+extern const char kSyncAppSettings[];
+extern const char kSyncApps[];
+extern const char kSyncAutofillProfile[];
+extern const char kSyncAutofill[];
+extern const char kSyncBookmarks[];
+extern const char kSyncDictionary[];
+extern const char kSyncExtensionSettings[];
+extern const char kSyncExtensions[];
+extern const char kSyncFaviconImages[];
+extern const char kSyncFaviconTracking[];
+extern const char kSyncHistoryDeleteDirectives[];
+extern const char kSyncManagedUserSettings[];
+extern const char kSyncManagedUserSharedSettings[];
+extern const char kSyncManagedUsers[];
+extern const char kSyncArticles[];
+extern const char kSyncPasswords[];
+extern const char kSyncPreferences[];
+extern const char kSyncPriorityPreferences[];
+extern const char kSyncSearchEngines[];
+extern const char kSyncSessions[];
+extern const char kSyncSyncedNotificationAppInfo[];
+extern const char kSyncSyncedNotifications[];
+extern const char kSyncTabs[];
+extern const char kSyncThemes[];
+extern const char kSyncTypedUrls[];
+
+extern const char kSyncManaged[];
+extern const char kSyncSuppressStart[];
+
+extern const char kSyncUsingSecondaryPassphrase[];
+extern const char kSyncEncryptionBootstrapToken[];
+extern const char kSyncKeystoreEncryptionBootstrapToken[];
+
+extern const char kSyncAcknowledgedSyncTypes[];
+
+extern const char kSyncSessionsGUID[];
+
+#if defined(OS_CHROMEOS)
+extern const char kSyncSpareBootstrapToken[];
+#endif  // defined(OS_CHROMEOS)
+
+}  // namespace prefs
+
+}  // namespace sync_driver