Update uses of UTF conversions in chrome_frame/, chromeos/, components/ to use the base:: namespace.

components/autofill/core/browser/validation_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/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "components/autofill/core/browser/validation.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+using base::ASCIIToUTF16;
+
 namespace autofill {
 namespace {
 
 struct ExpirationDate {
   const char* year;
   const char* month;
 };
 
 struct IntExpirationDate {
   const int year;
@@ skipping 170 matching lines @@
       ASCIIToUTF16(kVisaCVC), ASCIIToUTF16(kAmericanExpressCard)));
   EXPECT_FALSE(autofill::IsValidCreditCardSecurityCode(
       ASCIIToUTF16(kAmericanExpressCVC), ASCIIToUTF16(kVisaCard)));
   EXPECT_TRUE(autofill::IsValidCreditCardSecurityCode(
       ASCIIToUTF16(kVisaCVC), ASCIIToUTF16(kInvalidNumbers[0])));
   EXPECT_FALSE(autofill::IsValidCreditCardSecurityCode(
       ASCIIToUTF16(kAmericanExpressCVC), ASCIIToUTF16(kInvalidNumbers[0])));
 }
 
 }  // namespace autofill