Remove kDistroDict from Preferences.

chrome/common/pref_names.h

 // 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.
 
 // Constants for the names of various preferences, for easier changing.
 
 #ifndef CHROME_COMMON_PREF_NAMES_H_
 #define CHROME_COMMON_PREF_NAMES_H_
 
 #include <stddef.h>
 
 #include "build/build_config.h"
 #include "chrome/common/features.h"
 #include "extensions/features/features.h"
 #include "media/media_features.h"
 #include "ppapi/features/features.h"
+#include "rlz/features/features.h"
 
 namespace prefs {
 
 // Profile prefs. Please add Local State prefs below instead.
 #if defined(OS_CHROMEOS) && BUILDFLAG(ENABLE_APP_LIST)
 extern const char kArcApps[];
 extern const char kArcBackupRestoreEnabled[];
 extern const char kArcDataRemoveRequested[];
 extern const char kArcEnabled[];
 extern const char kArcPolicyCompliant[];
@@ skipping 28 matching lines @@
 extern const char kSupervisedUserManualURLs[];
 extern const char kSupervisedUserSafeSites[];
 extern const char kSupervisedUserSecondCustodianEmail[];
 extern const char kSupervisedUserSecondCustodianName[];
 extern const char kSupervisedUserSecondCustodianProfileImageURL[];
 extern const char kSupervisedUserSecondCustodianProfileURL[];
 extern const char kSupervisedUserSharedSettings[];
 extern const char kSupervisedUserWhitelists[];
 extern const char kURLsToRestoreOnStartup[];
 
+#if BUILDFLAG(ENABLE_RLZ)
+// Integer. RLZ ping delay in seconds.

[grt (UTC plus 2), 2017/02/24 07:42:21]

nit: remove comment for consistency with surrounding code

[gab, 2017/02/28 19:54:45]

Done.

+extern const char kRlzPingDelay[];
+#endif  // BUILDFLAG(ENABLE_RLZ)
+
 // For OS_CHROMEOS we maintain the kApplicationLocale property in both local
 // state and the user's profile.  The global property determines the locale of
 // the login screen, while the user's profile determines their personal locale
 // preference.
 extern const char kApplicationLocale[];
 #if defined(OS_CHROMEOS)
 extern const char kApplicationLocaleBackup[];
 extern const char kApplicationLocaleAccepted[];
 extern const char kOwnerLocale[];
 #endif
@@ skipping 820 matching lines @@
 extern const char kBookmarksBubbleIOSPromoDismissed[];
 extern const char kNumberBookmarksFootNoteIOSPromoShown[];
 extern const char kBookmarksFootNoteIOSPromoDismissed[];
 extern const char kNumberHistoryPageIOSPromoShown[];
 extern const char kHistoryPageIOSPromoDismissed[];
 #endif
 
 }  // namespace prefs
 
 #endif  // CHROME_COMMON_PREF_NAMES_H_