Revert 72238 because this commit seems to have caused perms check on Linux Bu...

chrome/common/extensions/extension_constants.h

 // Copyright (c) 2010 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_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_
 #pragma once
 
 #include "base/basictypes.h"
 
@@ skipping 250 matching lines @@
 
   // The buckets used in the apps promo histogram.
   enum AppsPromoBuckets {
     PROMO_LAUNCH_APP,
     PROMO_LAUNCH_WEB_STORE,
     PROMO_CLOSE,
     PROMO_EXPIRE,
     PROMO_SEEN,
     PROMO_BUCKET_BOUNDARY
   };
-
-#if defined(OS_CHROMEOS)
-  // The directory path on a ChromeOS device where accessibility extensions are
-  // stored.
-  extern const char* kAccessExtensionPath;
-#endif
 }  // extension_misc
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_