Cleanup: Remove unneeded includes of pref_names.h

chrome/browser/autofill/personal_data_manager_unittest.cc

 // Copyright (c) 2010 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 <string>
 
 #include "base/basictypes.h"
 #include "base/message_loop.h"
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/autofill/autofill_common_test.h"
 #include "chrome/browser/autofill/autofill_profile.h"
 #include "chrome/browser/autofill/form_structure.h"
 #include "chrome/browser/autofill/personal_data_manager.h"
 #include "chrome/browser/browser_thread.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/password_manager/encryptor.h"
 #include "chrome/common/guid.h"
 #include "chrome/common/notification_details.h"
 #include "chrome/common/notification_observer_mock.h"
 #include "chrome/common/notification_registrar.h"
 #include "chrome/common/notification_source.h"
 #include "chrome/common/notification_type.h"
-#include "chrome/common/pref_names.h"
 #include "chrome/test/testing_profile.h"
 #include "webkit/glue/form_data.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using webkit_glue::FormData;
 
 ACTION(QuitUIMessageLoop) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   MessageLoop::current()->Quit();
@@ skipping 1345 matching lines @@
 
   // Expect that the newer information is saved.  In this case the year is
   // added to the existing credit card.
   CreditCard expected2;
   autofill_test::SetCreditCardInfo(&expected2,
       "L1", "Biggie Smalls", "4111111111111111", "01", "2011");
   const std::vector<CreditCard*>& results2 = personal_data_->credit_cards();
   ASSERT_EQ(1U, results2.size());
   EXPECT_EQ(0, expected2.Compare(*results2[0]));
 }