Add webui handler for promotions on Android NTP.

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_
 
 #include <stddef.h>
@@ skipping 509 matching lines @@
 extern const char kNtpPromoResourceCache[];
 extern const char kNtpPromoResourceCacheUpdate[];
 extern const char kNtpPromoResourceServer[];
 extern const char kNtpDateResourceServer[];
 extern const char kNtpShownBookmarksFolder[];
 extern const char kNtpShownPage[];
 extern const char kNtpCustomLogoStart[];
 extern const char kNtpCustomLogoEnd[];
 extern const char kNtpPromoVersion[];
 extern const char kNtpPromoLocale[];
+extern const char kNtpPromoDesktopSessionFound[];
 extern const char kNtpWebStoreEnabled[];
 extern const char kNtpAppPageNames[];
 
 extern const char kDevToolsDisabled[];
 extern const char kDevToolsOpenDocked[];
 extern const char kDevToolsDockSide[];
 extern const char kDevToolsHSplitLocation[];
 extern const char kDevToolsVSplitLocation[];
 extern const char kDevToolsEditedFiles[];
 
@@ skipping 191 matching lines @@
 #endif
 
 extern const char kInManagedMode[];
 
 extern const char kNetworkProfileWarningsLeft[];
 extern const char kNetworkProfileLastWarningTime[];
 
 }  // namespace prefs
 
 #endif  // CHROME_COMMON_PREF_NAMES_H_