MD Settings: add missing Mac-only "tab to links" pref

chrome/browser/extensions/api/settings_private/prefs_util.cc

 // Copyright 2015 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.
 
 #include "chrome/browser/extensions/api/settings_private/prefs_util.h"
 
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "chrome/browser/extensions/settings_api_helpers.h"
@@ skipping 103 matching lines @@
   (*s_whitelist)[::prefs::kWebKitFixedFontFamily] =
       settings_private::PrefType::PREF_TYPE_STRING;
   (*s_whitelist)[::prefs::kWebKitSansSerifFontFamily] =
       settings_private::PrefType::PREF_TYPE_STRING;
   (*s_whitelist)[::prefs::kWebKitSerifFontFamily] =
       settings_private::PrefType::PREF_TYPE_STRING;
   (*s_whitelist)[::prefs::kWebKitStandardFontFamily] =
       settings_private::PrefType::PREF_TYPE_STRING;
   (*s_whitelist)[::prefs::kDefaultCharset] =
       settings_private::PrefType::PREF_TYPE_STRING;
+#if defined(OS_MACOSX)
+  (*s_whitelist)[::prefs::kWebkitTabsToLinks] =
+      settings_private::PrefType::PREF_TYPE_BOOLEAN;
+#endif
 
   // On startup.
   (*s_whitelist)[::prefs::kRestoreOnStartup] =
       settings_private::PrefType::PREF_TYPE_NUMBER;
   (*s_whitelist)[::prefs::kURLsToRestoreOnStartup] =
       settings_private::PrefType::PREF_TYPE_LIST;
 
   // Downloads settings.
   (*s_whitelist)[::prefs::kDownloadDefaultDirectory] =
       settings_private::PrefType::PREF_TYPE_STRING;
@@ skipping 643 matching lines @@
       ExtensionPrefValueMapFactory::GetForBrowserContext(profile_)
           ->GetExtensionControllingPref(pref_object.key);
   if (extension_id.empty())
     return nullptr;
 
   return ExtensionRegistry::Get(profile_)->GetExtensionById(
       extension_id, ExtensionRegistry::ENABLED);
 }
 
 }  // namespace extensions