Views Textfield fixes and cleanup.

chrome/browser/chromeos/options/passphrase_textfield.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/chromeos/options/passphrase_textfield.h"
 
 #include "base/strings/utf_string_conversions.h"
 
 namespace chromeos {
 
 PassphraseTextfield::PassphraseTextfield()
-    : Textfield(views::Textfield::STYLE_OBSCURED),
+    : Textfield(),
       show_fake_(false),
       changed_(true) {
+  SetTextInputType(ui::TEXT_INPUT_TYPE_PASSWORD);
 }
 
 void PassphraseTextfield::SetShowFake(bool show_fake) {
   show_fake_ = show_fake;
   if (show_fake_)
     SetFakePassphrase();
   else
     ClearFakePassphrase();
 }
 
@@ skipping 21 matching lines @@
   SetText(fake_passphrase);
   changed_ = false;
 }
 
 void PassphraseTextfield::ClearFakePassphrase() {
   SetText(base::string16());
   changed_ = true;
 }
 
 }  // namespace chromeos