Move StringToUpperASCII and LowerCaseEqualsASCII to the base namespace

net/http/http_auth_handler_mock.cc

Index: net/http/http_auth_handler_mock.cc
diff --git a/net/http/http_auth_handler_mock.cc b/net/http/http_auth_handler_mock.cc
index 52990eef923ab6ba7ece9f67b4dd7d3a753a749c..d5f049ae756e7e51d7c4fa4d70070eae5de13fc3 100644
--- a/net/http/http_auth_handler_mock.cc
+++ b/net/http/http_auth_handler_mock.cc
@@ -83,7 +83,7 @@ HttpAuth::AuthorizationResult HttpAuthHandlerMock::HandleAnotherChallenge(
   // challenge for a non connection based scheme, assume it's a rejection.
   if (!is_connection_based() || challenge->base64_param().empty())
     return HttpAuth::AUTHORIZATION_RESULT_REJECT;
-  if (!LowerCaseEqualsASCII(challenge->scheme(), "mock"))
+  if (!base::LowerCaseEqualsASCII(challenge->scheme(), "mock"))
     return HttpAuth::AUTHORIZATION_RESULT_INVALID;
   return HttpAuth::AUTHORIZATION_RESULT_ACCEPT;
 }