Update the web store promo to be clearer and configurable at run-time.

chrome/common/pref_names.h

 // Copyright (c) 2011 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.
 
 // Constants for the names of various preferences, for easier changing.
 
 #ifndef CHROME_COMMON_PREF_NAMES_H_
 #define CHROME_COMMON_PREF_NAMES_H_
 #pragma once
 
@@ skipping 362 matching lines @@
 extern const char kNTPMostVisitedURLsBlacklist[];
 extern const char kNTPMostVisitedPinnedURLs[];
 extern const char kNTPPromoResourceCache[];
 extern const char kNTPPromoResourceCacheUpdate[];
 extern const char kNTPPromoResourceServer[];
 extern const char kNTPDateResourceServer[];
 extern const char kNTPShownSections[];
 extern const char kNTPPrefVersion[];
 extern const char kNTPCustomLogoStart[];
 extern const char kNTPCustomLogoEnd[];
+extern const char kNTPPromoVersion[];
+extern const char kNTPPromoLocale[];
 extern const char kNTPPromoStart[];
 extern const char kNTPPromoEnd[];
 extern const char kNTPPromoLine[];
 extern const char kNTPPromoClosed[];
 extern const char kNTPPromoGroup[];
 extern const char kNTPPromoGroupTimeSlice[];
 extern const char kNTPPromoBuild[];
+extern const char kNTPWebStorePromoLastId[];
+extern const char kNTPWebStorePromoId[];
+extern const char kNTPWebStorePromoHeader[];
+extern const char kNTPWebStorePromoButton[];
+extern const char kNTPWebStorePromoLink[];
+extern const char kNTPWebStorePromoExpire[];
 
 extern const char kGpuBlacklist[];
 extern const char kGpuBlacklistUpdate[];
 
 extern const char kDevToolsDisabled[];
 extern const char kDevToolsOpenDocked[];
 extern const char kDevToolsSplitLocation[];
 extern const char kSyncSessions[];
 
 extern const char kSyncLastSyncedTime[];
@@ skipping 72 matching lines @@
 extern const char kAuthNegotiateDelegateWhitelist[];
 extern const char kGSSAPILibraryName[];
 
 extern const char kKnownBackgroundPages[];
 
 extern const char kRegisteredProtocolHandlers[];
 
 }  // namespace prefs
 
 #endif  // CHROME_COMMON_PREF_NAMES_H_