Move LowerCaseEqualsASCII to base namespace

net/http/http_auth_gssapi_posix.cc

Index: net/http/http_auth_gssapi_posix.cc
diff --git a/net/http/http_auth_gssapi_posix.cc b/net/http/http_auth_gssapi_posix.cc
index 9b902af1728e36d427802ddb503f3e61c336ab3b..388cc640a42cc097657eaf4915fd32aadbd2b89a 100644
--- a/net/http/http_auth_gssapi_posix.cc
+++ b/net/http/http_auth_gssapi_posix.cc
@@ -688,8 +688,8 @@ void HttpAuthGSSAPI::Delegate() {
 HttpAuth::AuthorizationResult HttpAuthGSSAPI::ParseChallenge(
     HttpAuthChallengeTokenizer* tok) {
   // Verify the challenge's auth-scheme.
-  if (!LowerCaseEqualsASCII(tok->scheme(),
-                            base::StringToLowerASCII(scheme_).c_str()))
+  if (!base::LowerCaseEqualsASCII(tok->scheme(),
+                                  base::StringToLowerASCII(scheme_).c_str()))
     return HttpAuth::AUTHORIZATION_RESULT_INVALID;
 
   std::string encoded_auth_token = tok->base64_param();