Consolidated enhanced bookmarks experiment logic in one place.

chrome/browser/extensions/external_component_loader.cc

 // Copyright (c) 2013 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/external_component_loader.h"
 
 #include "chrome/browser/bookmarks/enhanced_bookmarks_features.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/search/hotword_service_factory.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
@@ skipping 24 matching lines @@
                     extension_urls::GetWebstoreUpdateUrl().spec());
 
   if (HotwordServiceFactory::IsHotwordAllowed(profile_)) {
     std::string hotwordId = extension_misc::kHotwordExtensionId;
     prefs_->SetString(hotwordId + ".external_update_url",
                       extension_urls::GetWebstoreUpdateUrl().spec());
   }
 
   UpdateBookmarksExperimentState(profile_->GetPrefs(),
                                  g_browser_process->local_state(),
-                                 IsUserSignedin(profile_));
+                                 IsUserSignedin(profile_),
+                                 kBookmarksExperimentEnabledFromSyncUnknown);
   std::string ext_id;
   if (GetBookmarksExperimentExtensionID(profile_->GetPrefs(), &ext_id) &&
       !ext_id.empty()) {
     prefs_->SetString(ext_id + ".external_update_url",
                       extension_urls::GetWebstoreUpdateUrl().spec());
   }
 
   LoadFinished();
 }
 
 }  // namespace extensions