[ImportantSites] Implementing dialog level blacklisting and blacklist expiration

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/features.h"
 #include "chrome/common/pref_font_webkit_names.h"
@@ skipping 50 matching lines @@
 // If set to true profiles are created in ephemeral mode and do not store their
 // data in the profile folder on disk but only in memory.
 const char kForceEphemeralProfiles[] = "profile.ephemeral_mode";
 
 // A boolean specifying whether the New Tab page is the home page or not.
 const char kHomePageIsNewTabPage[] = "homepage_is_newtabpage";
 
 // This is the URL of the page to load when opening new tabs.
 const char kHomePage[] = "homepage";
 
+// Stores information about the important sites dialog, including the time and
+// frequency it has been ignored.
+const char kImportantSitesDialogHistory[] = "important_sites_dialog";
+
 #if defined(OS_WIN)
 // This is a timestamp of the last time this profile was reset by a third party
 // tool. On Windows, a third party tool may set a registry value that will be
 // compared to this value and if different will result in a profile reset
 // prompt. See triggered_profile_resetter.h for more information.
 const char kLastProfileResetTimestamp[] = "profile.last_reset_timestamp";
 #endif
 
 // The URL to open the new tab page to. Only set by Group Policy.
 const char kNewTabPageLocationOverride[] = "newtab_page_location_override";
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 // default search engine, if it is the Google search engine.
 const char kGoogleDSEGeolocationSetting[] = "google_dse_geolocation_setting";
 
 // A dictionary of manifest URLs of Web Share Targets to a dictionary containing
 // attributes of its share_target field found in its manifest. Each key in the
 // dictionary is the name of the attribute, and the value is the corresponding
 // value.
 const char kWebShareVisitedTargets[] = "profile.web_share.visited_targets";
 
 }  // namespace prefs