Move remaining Autofill code to //components/autofill.

chrome/browser/autofill/validation.h

-// 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.
-
-#ifndef CHROME_BROWSER_AUTOFILL_VALIDATION_H_
-#define CHROME_BROWSER_AUTOFILL_VALIDATION_H_
-
-#include "base/string16.h"
-
-namespace autofill {
-
-// Returns true if |text| looks like a valid credit card number.
-// Uses the Luhn formula to validate the number.
-bool IsValidCreditCardNumber(const string16& text);
-
-// Returns true if |text| looks like a valid credit card security code.
-bool IsValidCreditCardSecurityCode(const string16& text);
-
-// Returns true if |text| looks like a valid e-mail address.
-bool IsValidEmailAddress(const string16& text);
-
-// Returns true if |text| looks like a valid zip code.
-// Valid for US zip codes only.
-bool IsValidZip(const string16& text);
-
-}  // namespace autofill
-
-#endif  // CHROME_BROWSER_AUTOFILL_VALIDATION_H_