Update uses of UTF conversions in chrome_frame/, chromeos/, components/ to use the base:: namespace.

components/webdata/encryptor/encryptor_mac.mm

Index: components/webdata/encryptor/encryptor_mac.mm
diff --git a/components/webdata/encryptor/encryptor_mac.mm b/components/webdata/encryptor/encryptor_mac.mm
index 089bf6c96f59572eb321b71e7f7e7607a2d1862b..de384db260458db7b7ab4d419343200849f31e7d 100644
--- a/components/webdata/encryptor/encryptor_mac.mm
+++ b/components/webdata/encryptor/encryptor_mac.mm
@@ -71,7 +71,7 @@ crypto::SymmetricKey* GetEncryptionKey() {
 
 bool Encryptor::EncryptString16(const base::string16& plaintext,
                                 std::string* ciphertext) {
-  return EncryptString(UTF16ToUTF8(plaintext), ciphertext);
+  return EncryptString(base::UTF16ToUTF8(plaintext), ciphertext);
 }
 
 bool Encryptor::DecryptString16(const std::string& ciphertext,
@@ -80,7 +80,7 @@ bool Encryptor::DecryptString16(const std::string& ciphertext,
   if (!DecryptString(ciphertext, &utf8))
     return false;
 
-  *plaintext = UTF8ToUTF16(utf8);
+  *plaintext = base::UTF8ToUTF16(utf8);
   return true;
 }