Eliminate BrowserThread dependency from WebDataAutofillServiceTest.

components/autofill/core/browser/phone_number_i18n_unittest.cc

 // 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.
 
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/autofill/core/browser/phone_number_i18n.h"
-#include "content/public/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/libphonenumber/src/phonenumber_api.h"
 
 using base::ASCIIToUTF16;
 using base::UTF8ToUTF16;
-using content::BrowserThread;
 
 namespace autofill {
 
 using i18n::NormalizePhoneNumber;
 using i18n::ParsePhoneNumber;
 using i18n::ConstructPhoneNumber;
 using i18n::PhoneNumbersMatch;
 
 TEST(PhoneNumberI18NTest, NormalizePhoneNumber) {
   // "Large" digits.
@@ skipping 356 matching lines @@
                                  "en-US"));
 
   // Different numbers don't match.
   EXPECT_FALSE(PhoneNumbersMatch(ASCIIToUTF16("14158889999"),
                                  ASCIIToUTF16("1415888"),
                                  "US",
                                  "en-US"));
 }
 
 }  // namespace autofill