Move StringToUpperASCII and LowerCaseEqualsASCII to the base namespace

net/http/http_auth_handler_basic.cc

Index: net/http/http_auth_handler_basic.cc
diff --git a/net/http/http_auth_handler_basic.cc b/net/http/http_auth_handler_basic.cc
index 48371389d1a279a6769d90f6fd4be22d2e62f181..58d657c39c3f0a5872fc978abaab9467ceca5b18 100644
--- a/net/http/http_auth_handler_basic.cc
+++ b/net/http/http_auth_handler_basic.cc
@@ -40,7 +40,7 @@ bool ParseRealm(const HttpAuthChallengeTokenizer& tokenizer,
   realm->clear();
   HttpUtil::NameValuePairsIterator parameters = tokenizer.param_pairs();
   while (parameters.GetNext()) {
-    if (!LowerCaseEqualsASCII(parameters.name(), "realm"))
+    if (!base::LowerCaseEqualsASCII(parameters.name(), "realm"))
       continue;
 
     if (!net::ConvertToUtf8AndNormalize(parameters.value(), kCharsetLatin1,
@@ -63,7 +63,7 @@ bool HttpAuthHandlerBasic::Init(HttpAuthChallengeTokenizer* challenge) {
 bool HttpAuthHandlerBasic::ParseChallenge(
     HttpAuthChallengeTokenizer* challenge) {
   // Verify the challenge's auth-scheme.
-  if (!LowerCaseEqualsASCII(challenge->scheme(), "basic"))
+  if (!base::LowerCaseEqualsASCII(challenge->scheme(), "basic"))
     return false;
 
   std::string realm;