Move StringToLowerASCII to base namespace

google_apis/gaia/gaia_auth_util.cc

Index: google_apis/gaia/gaia_auth_util.cc
diff --git a/google_apis/gaia/gaia_auth_util.cc b/google_apis/gaia/gaia_auth_util.cc
index 287cd469827c78308af731074b09c6ccb5e9f5f6..eba0d7b6724b85b5ae24f7ef4dbbaec7ebf7b2f9 100644
--- a/google_apis/gaia/gaia_auth_util.cc
+++ b/google_apis/gaia/gaia_auth_util.cc
@@ -35,7 +35,7 @@ std::string CanonicalizeEmailImpl(const std::string& email_address,
       base::RemoveChars(parts[0], ".", &parts[0]);
   }
 
-  std::string new_email = StringToLowerASCII(JoinString(parts, at));
+  std::string new_email = base::StringToLowerASCII(JoinString(parts, at));
   VLOG(1) << "Canonicalized " << email_address << " to " << new_email;
   return new_email;
 }
@@ -53,7 +53,7 @@ std::string CanonicalizeEmail(const std::string& email_address) {
 std::string CanonicalizeDomain(const std::string& domain) {
   // Canonicalization of domain names means lower-casing them. Make sure to
   // update this function in sync with Canonicalize if this ever changes.
-  return StringToLowerASCII(domain);
+  return base::StringToLowerASCII(domain);
 }
 
 std::string SanitizeEmail(const std::string& email_address) {