Fix threading bugs in product label UI.

chrome/common/url_constants.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.
 
 // Contains constants for known URLs and portions thereof.
 
 #ifndef CHROME_COMMON_URL_CONSTANTS_H_
 #define CHROME_COMMON_URL_CONSTANTS_H_
 
 #include <string>
@@ skipping 280 matching lines @@
 extern const char kChromeUINetworkMenu[];
 extern const char kChromeUIWrenchMenu[];
 
 extern const char kEULAPathFormat[];
 extern const char kOemEulaURLPath[];
 extern const char kOnlineEulaURLPath[];
 
 extern const char kChromeOSCreditsPath[];
 
 extern const char kChromeOSAssetHost[];
-extern const char kChromeOSAssetPath[];
 #endif
 
 #if (defined(OS_LINUX) && defined(TOOLKIT_VIEWS)) || defined(USE_AURA)
 extern const char kChromeUITabModalConfirmDialogHost[];
 #endif
 
 #if defined(ENABLE_WEBRTC)
 extern const char kChromeUIWebRtcLogsHost[];
 #endif
 
@@ skipping 232 matching lines @@
 // The URL for the 32-bit Mac deprecation help center article
 extern const char kMac32BitDeprecationURL[];
 #endif
 
 // The URL for the "Learn more" link the the Easy Unlock settings.
 extern const char kEasyUnlockLearnMoreUrl[];
 
 }  // namespace chrome
 
 #endif  // CHROME_COMMON_URL_CONSTANTS_H_