Move StringToUpperASCII to base namespace

components/autofill/core/browser/autofill_country.cc

Index: components/autofill/core/browser/autofill_country.cc
diff --git a/components/autofill/core/browser/autofill_country.cc b/components/autofill/core/browser/autofill_country.cc
index 265c876f7fa568a92dae049130f75a4624dbde77..c62fce8099eed6cbd603d0e06dedff8db9a40536 100644
--- a/components/autofill/core/browser/autofill_country.cc
+++ b/components/autofill/core/browser/autofill_country.cc
@@ -937,7 +937,8 @@ CountryNames::~CountryNames() {
 const std::string CountryNames::GetCountryCode(const base::string16& country,
                                                const std::string& locale) {
   // First, check common country names, including 2- and 3-letter country codes.
-  std::string country_utf8 = base::UTF16ToUTF8(StringToUpperASCII(country));
+  std::string country_utf8 = base::UTF16ToUTF8(
+      base::StringToUpperASCII(country));
   std::map<std::string, std::string>::const_iterator result =
       common_names_.find(country_utf8);
   if (result != common_names_.end())