Eliminate all code related to the AutomaticProfileResetter.

chrome/common/pref_names.cc

 // 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.
 
 #include "chrome/common/pref_names.h"
 
 #include "base/basictypes.h"
 #include "chrome/common/pref_font_webkit_names.h"
 
 namespace prefs {
@@ skipping 1177 matching lines @@
 
 // Enable notifications for new devices on the local network that can be
 // registered to the user's account, e.g. Google Cloud Print printers.
 const char kLocalDiscoveryNotificationsEnabled[] =
     "local_discovery.notifications_enabled";
 
 // A timestamp (stored in base::Time::ToInternalValue format) of the last time
 // a preference was reset.
 const char kPreferenceResetTime[] = "prefs.preference_reset_time";
 
+// OBSOLETE. The AutomaticProfileResetter service has been removed. We keep the
+// name here for now so we can clear out legacy values.
 // String that indicates if the Profile Reset prompt has already been shown to
 // the user. Used both in user preferences and local state, in the latter, it is
 // actually a dictionary that maps profile keys to before-mentioned strings.
+// TODO(engedy): Remove this and usages in M42 or later. See crbug.com/398813.
 const char kProfileResetPromptMemento[] = "profile.reset_prompt_memento";
 
 // The GCM channel's enabled state.
 const char kGCMChannelEnabled[] = "gcm.channel_enabled";
 
 // How many Service Workers are registered with the Push API (could be zero).
 const char kPushMessagingRegistrationCount[] =
     "gcm.push_messaging_registration_count";
 
 // Whether Easy Unlock is enabled.
@@ skipping 1079 matching lines @@
 // "mapped_title" entries, detailing the bookmark target URL (if any), the title
 // given by the PartnerBookmarksProvider and either the user-visible renamed
 // title or an empty string if the bookmark node was removed.
 const char kPartnerBookmarkMappings[] = "partnerbookmarks.mappings";
 #endif
 
 // Whether DNS Quick Check is disabled in proxy resolution.
 const char kQuickCheckEnabled[] = "proxy.quick_check_enabled";
 
 }  // namespace prefs