Implement the Windows desktop search redirection feature.

chrome/browser/search_engines/template_url_service_factory.cc

Index: chrome/browser/search_engines/template_url_service_factory.cc
diff --git a/chrome/browser/search_engines/template_url_service_factory.cc b/chrome/browser/search_engines/template_url_service_factory.cc
index 71229429c8a42ea38222da451328b9f0daf91eff..df8fd09671bf2b037236f8eec5702f9beb1d7c26 100644
--- a/chrome/browser/search_engines/template_url_service_factory.cc
+++ b/chrome/browser/search_engines/template_url_service_factory.cc
@@ -20,13 +20,10 @@
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/search_engines/default_search_manager.h"
+#include "components/search_engines/desktop_search_utils.h"
 #include "components/search_engines/search_engines_pref_names.h"
 #include "components/search_engines/template_url_service.h"
 
-#if defined(OS_WIN)
-#include "components/search_engines/desktop_search_win.h"
-#endif  // defined(OS_WIN)
-
 #if defined(ENABLE_RLZ)
 #include "components/rlz/rlz_tracker.h"
 #endif
@@ -84,9 +81,7 @@ void TemplateURLServiceFactory::RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* registry) {
   DefaultSearchManager::RegisterProfilePrefs(registry);
   TemplateURLService::RegisterProfilePrefs(registry);
-#if defined(OS_WIN)
-  RegisterWindowsDesktopSearchRedirectionPref(registry);
-#endif
+  RegisterDesktopSearchRedirectionPref(registry);
 }
 
 content::BrowserContext* TemplateURLServiceFactory::GetBrowserContextToUse(