Componentize several Autofill unit tests.

components/autofill/core/browser/autofill_test_utils.h

 // Copyright 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 COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_TEST_UTILS_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_TEST_UTILS_H_
 
 #include "base/memory/scoped_ptr.h"
 
 class PrefService;
 
-namespace content {
-class BrowserContext;
-}
-
 namespace autofill {
 
 class AutofillProfile;
 class CreditCard;
 struct FormData;
 struct FormFieldData;
 
 // Common utilities shared amongst Autofill tests.
 namespace test {
 
@@ skipping 60 matching lines @@
 // A unit testing utility that is common to a number of the Autofill unit
 // tests.  |SetCreditCardInfo| provides a quick way to populate a credit card
 // with c-strings.
 void SetCreditCardInfo(CreditCard* credit_card,
     const char* name_on_card, const char* card_number,
     const char* expiration_month, const char* expiration_year);
 
 // TODO(isherman): We should do this automatically for all tests, not manually
 // on a per-test basis: http://crbug.com/57221
 // Disables or mocks out code that would otherwise reach out to system services.
-void DisableSystemServices(content::BrowserContext* browser_context);
+void DisableSystemServices(PrefService* prefs);
 
 }  // namespace test
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_TEST_UTILS_H_