Move StringToUpperASCII and LowerCaseEqualsASCII to the base namespace

chrome/browser/supervised_user/supervised_user_url_filter.cc

Index: chrome/browser/supervised_user/supervised_user_url_filter.cc
diff --git a/chrome/browser/supervised_user/supervised_user_url_filter.cc b/chrome/browser/supervised_user/supervised_user_url_filter.cc
index b1a98f18085af44590d35631054168f44b5c75f0..652bdecb347711506484277cb5351bd2eb0b9ab6 100644
--- a/chrome/browser/supervised_user/supervised_user_url_filter.cc
+++ b/chrome/browser/supervised_user/supervised_user_url_filter.cc
@@ -110,7 +110,7 @@ bool FilterBuilder::AddPattern(const std::string& pattern, int site_id) {
 }
 
 void FilterBuilder::AddHostnameHash(const std::string& hash, int site_id) {
-  contents_->hash_site_map.insert(std::make_pair(StringToUpperASCII(hash),
+  contents_->hash_site_map.insert(std::make_pair(base::StringToUpperASCII(hash),
                                                  site_id));
 }