Fix android build bustage caused by r150622.

chrome/browser/extensions/extension_service.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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_
 
 #include <list>
 #include <map>
 #include <set>
@@ skipping 839 matching lines @@
 
   // Contains an entry for each warning that shall be currently shown.
   ExtensionWarningSet extension_warnings_;
 
   extensions::ProcessMap process_map_;
 
   AppShortcutManager app_shortcut_manager_;
 
   scoped_ptr<ExtensionErrorUI> extension_error_ui_;
 
+#if defined(ENABLE_EXTENSIONS)
   scoped_ptr<extensions::ExtensionActionStorageManager>
       extension_action_storage_manager_;
+#endif
 
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            InstallAppsWithUnlimtedStorage);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            InstallAppsAndCheckStorageProtection);
   DISALLOW_COPY_AND_ASSIGN(ExtensionService);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_