Handful of related instant changes:

chrome/common/pref_names.cc

 // Copyright (c) 2010 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"
 
 namespace prefs {
 
 // *************** PROFILE PREFS ***************
 // These are attached to the user profile
@@ skipping 194 matching lines @@
 
 // Is the cookie prompt expanded?
 const char kCookiePromptExpanded[] = "cookieprompt.expanded";
 
 // Boolean pref indicating whether the instant confirm dialog has been shown.
 const char kInstantConfirmDialogShown[] = "instant.confirm_dialog_shown";
 
 // Boolean pref indicating if instant is enabled.
 const char kInstantEnabled[] = "instant.enabled";
 
+// Boolean pref indicating if instant was ever enabled.
+const char kInstantEnabledOnce[] = "instant.enabled_once";
+
+// Time when instant was last enabled.
+const char kInstantEnabledTime[] = "instant.enabled_time";
+
+// Used to maintain instant promo keys. See PromoCounter for details of subkeys
+// that are used.
+const char kInstantPromo[] = "instant.promo";
+
+// Type of instant. This is one of the enums defined in InstantController::TYPE.
+const char kInstantType[] = "instant.type";
+
 #if defined(USE_NSS) || defined(USE_OPENSSL)
 // Prefs for SSLConfigServicePref.  Currently, these are only present on
 // and used by NSS/OpenSSL using OSes.
 const char kCertRevocationCheckingEnabled[] = "ssl.rev_checking.enabled";
 const char kSSL2Enabled[] = "ssl.ssl2.enabled";
 const char kSSL3Enabled[] = "ssl.ssl3.enabled";
 const char kTLS1Enabled[] = "ssl.tls1.enabled";
 #endif
 
 #if defined(OS_CHROMEOS)
@@ skipping 854 matching lines @@
 // String specifying the proxy server. For a specification of the expected
 // syntax see net::ProxyConfig::ProxyRules::ParseFromString().
 const char kProxyServer[] = "proxy.server";
 // URL to the proxy .pac file.
 const char kProxyPacUrl[] = "proxy.pac_url";
 // String containing proxy bypass rules. For a specification of the
 // expected syntax see net::ProxyBypassRules::ParseFromString().
 const char kProxyBypassList[] = "proxy.bypass_list";
 
 }  // namespace prefs