Remove duplicated user_prefs::TestingPrefServiceSyncable

extensions/browser/api_unittest.h

 // Copyright 2014 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.
 
 #ifndef EXTENSIONS_BROWSER_API_UNITTEST_H_
 #define EXTENSIONS_BROWSER_API_UNITTEST_H_
 
 #include <memory>
 #include <string>
 
 #include "base/memory/ref_counted.h"
-#include "components/pref_registry/testing_pref_service_syncable.h"
+#include "components/sync_preferences/testing_pref_service_syncable.h"
 #include "extensions/browser/extensions_test.h"
 
 namespace base {
 class Value;
 class DictionaryValue;
 class ListValue;
 }
 
 namespace content {
 class TestBrowserThreadBundle;
@@ skipping 57 matching lines @@
   // This will EXPECT-fail if any result is returned from the function.
   std::string RunFunctionAndReturnError(UIThreadExtensionFunction* function,
                                         const std::string& args);
 
   // Run the function and ignore any result.
   void RunFunction(UIThreadExtensionFunction* function,
                    const std::string& args);
 
  private:
   std::unique_ptr<content::TestBrowserThreadBundle> thread_bundle_;
-  user_prefs::TestingPrefServiceSyncable testing_pref_service_;
+  sync_preferences::TestingPrefServiceSyncable testing_pref_service_;
 
   // The WebContents used to associate a RenderViewHost with API function calls,
   // or null.
   std::unique_ptr<content::WebContents> contents_;
 
   // The Extension used when running API function calls.
   scoped_refptr<Extension> extension_;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_UNITTEST_H_