Extract input_method_whitelist.{h|cc} from c/b/chromeos.

chromeos/ime/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 "chromeos/ime/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