Delete dead AppsPromo code

chrome/common/pref_names.h

 // 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.
 
 // Constants for the names of various preferences, for easier changing.
 
 #ifndef CHROME_COMMON_PREF_NAMES_H_
 #define CHROME_COMMON_PREF_NAMES_H_
 #pragma once
 
 #include <stddef.h>
 
 #include "build/build_config.h"
 
 namespace prefs {
 
 // Profile prefs. Please add Local State prefs below instead.
-extern const char kAppsPromoCounter[];
 extern const char kDefaultApps[];
 extern const char kDefaultAppsInstalled[];
 extern const char kHomePageIsNewTabPage[];
 extern const char kHomePage[];
 extern const char kHomePageChanged[];
 extern const char kIsGooglePlusUser[];
 extern const char kSessionExitedCleanly[];
 extern const char kRestoreOnStartup[];
 extern const char kURLsToRestoreOnStartup[];
 extern const char kRestoreOnStartupMigrated[];
@@ skipping 502 matching lines @@
 extern const char kNtpPromoInitialSegment[];
 extern const char kNtpPromoIncrement[];
 extern const char kNtpPromoGroupTimeSlice[];
 extern const char kNtpPromoGroupMax[];
 extern const char kNtpPromoViews[];
 extern const char kNtpPromoViewsMax[];
 extern const char kNtpPromoPlatform[];
 extern const char kNtpPromoBuild[];
 extern const char kNtpPromoGplusRequired[];
 extern const char kNtpWebStoreEnabled[];
-extern const char kNtpWebStorePromoLastId[];
-extern const char kNtpWebStorePromoId[];
-extern const char kNtpWebStorePromoHeader[];
-extern const char kNtpWebStorePromoButton[];
-extern const char kNtpWebStorePromoLink[];
-extern const char kNtpWebStorePromoLogo[];
-extern const char kNtpWebStorePromoLogoSource[];
-extern const char kNtpWebStorePromoExpire[];
-extern const char kNtpWebStorePromoUserGroup[];
 extern const char kNtpAppPageNames[];
-extern const char kNtpHideWebStorePromo[];
 
 extern const char kDevToolsDisabled[];
 extern const char kDevToolsOpenDocked[];
 extern const char kDevToolsDockSide[];
 extern const char kDevToolsHSplitLocation[];
 extern const char kDevToolsVSplitLocation[];
 extern const char kDevToolsEditedFiles[];
 
 extern const char kSyncLastSyncedTime[];
 extern const char kSyncHasSetupCompleted[];
@@ skipping 176 matching lines @@
 extern const char kNetworkProfileWarningsLeft[];
 extern const char kNetworkProfileLastWarningTime[];
 
 #if defined(OS_MACOSX)
 extern const char kMacLeopardObsoleteInfobarLastShown[];
 #endif  // defined(OS_MACOSX)
 
 }  // namespace prefs
 
 #endif  // CHROME_COMMON_PREF_NAMES_H_