Remove error bubble on typing new password

chrome/browser/chromeos/login/existing_user_view.cc

 // Copyright (c) 2010 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/login/existing_user_view.h"
 
 #include "app/l10n_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/login/user_controller.h"
 #include "chrome/browser/chromeos/login/textfield_with_margin.h"
@@ skipping 98 matching lines @@
       user_controller_->OnLogin("", UTF16ToUTF8(password_field_->text()));
   } else {
     user_controller_->ClearErrors();
     return false;
   }
   return true;
 }
 
 void ExistingUserView::ContentsChanged(views::Textfield* sender,
                                        const string16& new_contents) {
+  if (!new_contents.empty())
+    user_controller_->ClearErrors();
 }
 
 void ExistingUserView::EnableInputControls(bool enabled) {
   password_field_->SetEnabled(enabled);
 }
 
 void ExistingUserView::ClearAndFocusControls() {
   ClearAndFocusPassword();
 }
 
@@ skipping 15 matching lines @@
 
 gfx::Rect ExistingUserView::GetMainInputScreenBounds() const {
   return password_field_->GetScreenBounds();
 }
 
 void ExistingUserView::OnLocaleChanged() {
   RecreateFields();
 }
 
 }  // namespace chromeos