Fix issue with login items getting recreated.

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 2151 matching lines @@
     "profile.managed_popups_allowed_for_urls";
 const char kManagedPopupsBlockedForUrls[] =
     "profile.managed_popups_blocked_for_urls";
 const char kManagedNotificationsAllowedForUrls[] =
     "profile.managed_notifications_allowed_for_urls";
 const char kManagedNotificationsBlockedForUrls[] =
     "profile.managed_notifications_blocked_for_urls";
 const char kManagedAutoSelectCertificateForUrls[] =
     "profile.managed_auto_select_certificate_for_urls";
 
-// Set to true if the user created a login item so we should not modify it when
-// uninstalling background apps.
-const char kUserCreatedLoginItem[] = "background_mode.user_created_login_item";
-
+#if defined(OS_MACOSX)
 // Set to true if the user removed our login item so we should not create a new
 // one when uninstalling background apps.
 const char kUserRemovedLoginItem[] = "background_mode.user_removed_login_item";
 
+// Set to true if Chrome already created a login item, so there's no need to
+// create another one.
+const char kChromeCreatedLoginItem[] =
+  "background_mode.chrome_created_login_item";
+
+// Set to true once we've initialized kChromeCreatedLoginItem for the first
+// time.
+const char kMigratedLoginItemPref[] =
+  "background_mode.migrated_login_item_pref";
+#endif
+
 // Set to true if background mode is enabled on this browser.
 const char kBackgroundModeEnabled[] = "background_mode.enabled";
 
 // Set to true if hardware acceleration mode is enabled on this browser.
 const char kHardwareAccelerationModeEnabled[] =
   "hardware_acceleration_mode.enabled";
 
 // List of protocol handlers.
 const char kRegisteredProtocolHandlers[] =
   "custom_handlers.registered_protocol_handlers";
@@ skipping 186 matching lines @@
 // the time of the last ping.
 extern const char kAppListLaunchCount[] = "app_list.launch_count";
 extern const char kLastAppListLaunchPing[] = "app_list.last_launch_ping";
 
 // The number of times the an app was launched from the app launcher since last
 // ping and the time of the last ping.
 extern const char kAppListAppLaunchCount[] = "app_list.app_launch_count";
 extern const char kLastAppListAppLaunchPing[] = "app_list.last_app_launch_ping";
 
 }  // namespace prefs