Extract input_method_whitelist.{h|cc} from c/b/chromeos. (2nd try)

chrome/browser/chromeos/input_method/input_method_whitelist_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 "base/logging.h"
-#include "chrome/browser/chromeos/input_method/input_method_whitelist.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace chromeos {
-namespace input_method {
-
-namespace {
-
-class InputMethodWhitelistTest : public testing::Test {
- protected:
-  const InputMethodWhitelist whitelist_;
-};
-
-}  // namespace
-
-TEST_F(InputMethodWhitelistTest, TestInputMethodIdIsWhitelisted) {
-  EXPECT_TRUE(whitelist_.InputMethodIdIsWhitelisted("mozc"));
-  EXPECT_TRUE(whitelist_.InputMethodIdIsWhitelisted("xkb:us:dvorak:eng"));
-  EXPECT_FALSE(whitelist_.InputMethodIdIsWhitelisted("mozc,"));
-  EXPECT_FALSE(whitelist_.InputMethodIdIsWhitelisted("mozc,xkb:us:dvorak:eng"));
-  EXPECT_FALSE(whitelist_.InputMethodIdIsWhitelisted("not-supported-id"));
-  EXPECT_FALSE(whitelist_.InputMethodIdIsWhitelisted(","));
-  EXPECT_FALSE(whitelist_.InputMethodIdIsWhitelisted(""));
-}
-
-}  // namespace input_method
-}  // namespace chromeos