Move StringToUpperASCII and LowerCaseEqualsASCII to the base namespace

chrome/browser/net/firefox_proxy_settings.cc

Index: chrome/browser/net/firefox_proxy_settings.cc
diff --git a/chrome/browser/net/firefox_proxy_settings.cc b/chrome/browser/net/firefox_proxy_settings.cc
index ba7fe94f87053b115c3d2fa0cca55e069ccc9401..408b8caae37dca151851eb46b50688880b3fda05 100644
--- a/chrome/browser/net/firefox_proxy_settings.cc
+++ b/chrome/browser/net/firefox_proxy_settings.cc
@@ -106,8 +106,8 @@ bool ParsePrefFile(const base::FilePath& pref_file,
                                     stop_value - start_value - 1);
     base::TrimWhitespace(value, base::TRIM_ALL, &value);
     // Value could be a boolean.
-    bool is_value_true = LowerCaseEqualsASCII(value, "true");
-    if (is_value_true || LowerCaseEqualsASCII(value, "false")) {
+    bool is_value_true = base::LowerCaseEqualsASCII(value, "true");
+    if (is_value_true || base::LowerCaseEqualsASCII(value, "false")) {
       prefs->SetBoolean(key, is_value_true);
       continue;
     }