Remove duplicated user_prefs::TestingPrefServiceSyncable

components/search_engines/default_search_pref_migration_unittest.cc

Index: components/search_engines/default_search_pref_migration_unittest.cc
diff --git a/components/search_engines/default_search_pref_migration_unittest.cc b/components/search_engines/default_search_pref_migration_unittest.cc
index 5de070b29106d7011029803f96145590ebb10c15..292fb384ecbbfdd928fd44c6cbb566e7333e0740 100644
--- a/components/search_engines/default_search_pref_migration_unittest.cc
+++ b/components/search_engines/default_search_pref_migration_unittest.cc
@@ -16,12 +16,12 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
-#include "components/pref_registry/testing_pref_service_syncable.h"
 #include "components/search_engines/default_search_manager.h"
 #include "components/search_engines/search_engines_pref_names.h"
 #include "components/search_engines/template_url.h"
 #include "components/search_engines/template_url_prepopulate_data.h"
 #include "components/search_engines/template_url_service.h"
+#include "components/sync_preferences/testing_pref_service_syncable.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
@@ -42,7 +42,7 @@ class DefaultSearchPrefMigrationTest : public testing::Test {
   PrefService* pref_service() { return &prefs_; }
 
  private:
-  user_prefs::TestingPrefServiceSyncable prefs_;
+  sync_preferences::TestingPrefServiceSyncable prefs_;
   std::unique_ptr<DefaultSearchManager> default_search_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(DefaultSearchPrefMigrationTest);