Add a notice about other forms of history to the CBD dialog

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/macros.h"
 #include "build/build_config.h"
 #include "chrome/common/pref_font_webkit_names.h"
 
@@ skipping 862 matching lines @@
 const char kDeleteCache[] = "browser.clear_data.cache";
 const char kDeleteCookies[] = "browser.clear_data.cookies";
 const char kDeletePasswords[] = "browser.clear_data.passwords";
 const char kDeleteFormData[] = "browser.clear_data.form_data";
 const char kDeleteHostedAppsData[] = "browser.clear_data.hosted_apps_data";
 const char kDeauthorizeContentLicenses[] =
     "browser.clear_data.content_licenses";
 const char kDeleteTimePeriod[] = "browser.clear_data.time_period";
 const char kLastClearBrowsingDataTime[] =
     "browser.last_clear_browsing_data_time";
+const char kClearBrowsingDataHistoryNoticeShownTimes[] =
+    "browser.clear_data.history_notice_shown_times";
 
 // Boolean pref to define the default values for using spellchecker.
 const char kEnableContinuousSpellcheck[] = "browser.enable_spellchecking";
 
 // Boolean pref to define the default setting for "block offensive words".
 // The old key value is kept to avoid unnecessary migration code.
 const char kSpeechRecognitionFilterProfanities[] =
     "browser.speechinput_censor_results";
 
 // Boolean controlling whether history saving is disabled.
@@ skipping 1298 matching lines @@
 const char kMediaRouterEnableCloudServices[] =
     "media_router.cloudservices.enabled";
 #endif  // defined(GOOGLE_CHROME_BUILD)
 // Whether or not the Media Router first run flow has been acknowledged by the
 // user.
 const char kMediaRouterFirstRunFlowAcknowledged[] =
     "media_router.firstrunflow.acknowledged";
 #endif
 
 }  // namespace prefs