Disable non Latin keyboard layout on Lock screen and Sign-in screen.

chrome/browser/ui/webui/options/chromeos/cros_language_options_handler_unittest.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/webui/options/language_options_handler.h"
 
 #include <string>
 
 #include "base/values.h"
 #include "chrome/browser/chromeos/input_method/input_method_configuration.h"
@@ skipping 32 matching lines @@
                                 const std::string& raw_layout,
                                 const std::string& language_code) {
     std::vector<std::string> layouts;
     layouts.push_back(raw_layout);
     std::vector<std::string> languages;
     languages.push_back(language_code);
     return InputMethodDescriptor(id,
                                  "",  // name
                                  layouts,
                                  languages,
+                                 true,  // use on login screen.
                                  GURL());  // options page url
   }
 };
 
 }  // namespace
 
 TEST_F(CrosLanguageOptionsHandlerTest, GetInputMethodList) {
   InputMethodDescriptors descriptors = CreateInputMethodDescriptors();
   scoped_ptr<ListValue> list(
       chromeos::options::CrosLanguageOptionsHandler::GetInputMethodList(
@@ skipping 55 matching lines @@
   for (size_t i = 0; i < list->GetSize(); ++i) {
     base::DictionaryValue* dict;
     ASSERT_TRUE(list->GetDictionary(i, &dict));
     std::string code;
     ASSERT_TRUE(dict->GetString("code", &code));
     EXPECT_NE("is", code)
         << "Icelandic is an example language which has input method "
         << "but can't use it as UI language.";
   }
 }