Update some uses of UTF conversions in chrome/browser to use the base:: namespace.

chrome/browser/ui/gtk/crypto_module_password_dialog_gtk.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/crypto_module_password_dialog.h"
 
 #include <gtk/gtk.h>
 
 #include "base/basictypes.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 52 matching lines @@
       dialog_,
       l10n_util::GetStringUTF8(
           IDS_CRYPTO_MODULE_AUTH_DIALOG_OK_BUTTON_LABEL).c_str(),
       GTK_STOCK_OK,
       GTK_RESPONSE_ACCEPT);
   gtk_widget_set_can_default(ok_button, TRUE);
   gtk_dialog_set_default_response(GTK_DIALOG(dialog_), GTK_RESPONSE_ACCEPT);
 
   // Select an appropriate text for the reason.
   std::string text;
-  const base::string16& hostname16 = UTF8ToUTF16(hostname);
-  const base::string16& slot16 = UTF8ToUTF16(slot_name);
+  const base::string16& hostname16 = base::UTF8ToUTF16(hostname);
+  const base::string16& slot16 = base::UTF8ToUTF16(slot_name);
   switch (reason) {
     case chrome::kCryptoModulePasswordKeygen:
       text = l10n_util::GetStringFUTF8(
           IDS_CRYPTO_MODULE_AUTH_DIALOG_TEXT_KEYGEN, slot16, hostname16);
       break;
     case chrome::kCryptoModulePasswordCertEnrollment:
       text = l10n_util::GetStringFUTF8(
           IDS_CRYPTO_MODULE_AUTH_DIALOG_TEXT_CERT_ENROLLMENT,
           slot16,
           hostname16);
@@ skipping 75 matching lines @@
     bool retry,
     CryptoModulePasswordReason reason,
     const std::string& hostname,
     gfx::NativeWindow parent,
     const CryptoModulePasswordCallback& callback) {
   (new CryptoModulePasswordDialog(
        slot_name, retry, reason, hostname, parent, callback))->Show();
 }
 
 }  // namespace chrome