Fix the Learn More link for Printing in CrOS.

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 <stddef.h>
@@ skipping 560 matching lines @@
 #endif
 
 #if defined(OS_CHROMEOS)
 extern const char kCrosScheme[];
 #endif
 
 #if defined(OS_ANDROID)
 extern const char kAndroidAppScheme[];
 #endif
 
+#if defined(OS_CHROMEOS)
+// "Learn more" URL for the Printing section under Options.
+extern const char kCrosPrintingLearnMoreURL[];
+#endif
+
 // "Learn more" URL for the Cloud Print section under Options.
 extern const char kCloudPrintLearnMoreURL[];
 
 // "Learn more" URL for the Cloud Print Preview No Destinations Promotion.
 extern const char kCloudPrintNoDestinationsLearnMoreURL[];
 
 // The URL for the "Learn more" link the the Easy Unlock settings.
 extern const char kEasyUnlockLearnMoreUrl[];
 
 // Parameters that get appended to force SafeSearch.
@@ skipping 32 matching lines @@
 extern const char kChooserUsbOverviewURL[];
 
 #if defined(OS_CHROMEOS)
 // The URL for EOL notification
 extern const char kEolNotificationURL[];
 #endif
 
 }  // namespace chrome
 
 #endif  // CHROME_COMMON_URL_CONSTANTS_H_