Move LowerCaseEqualsASCII to 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 7b135b9fcffdb941980d1f1a941d6d8a251a09a2..39dd5f19d971f3b07cb3869cd298b5ef71235e98 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;
     }