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

chrome/browser/chromeos/input_method/input_method_whitelist.h

-// 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.
-
-#ifndef CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_WHITELIST_H_
-#define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_WHITELIST_H_
-
-#include <set>
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-
-namespace chromeos {
-namespace input_method {
-
-class InputMethodDescriptor;
-typedef std::vector<InputMethodDescriptor> InputMethodDescriptors;
-
-//
-class InputMethodWhitelist {
- public:
-  InputMethodWhitelist();
-  ~InputMethodWhitelist();
-
-  // Returns true if |input_method_id| is whitelisted.
-  bool InputMethodIdIsWhitelisted(const std::string& input_method_id) const;
-
-  // Returns all input methods that are supported, including ones not active.
-  // This function never returns NULL. Note that input method extensions are not
-  // included in the result.
-  scoped_ptr<InputMethodDescriptors> GetSupportedInputMethods() const;
-
- private:
-  std::set<std::string> supported_input_methods_;
-
-  DISALLOW_COPY_AND_ASSIGN(InputMethodWhitelist);
-};
-
-}  // namespace input_method
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_WHITELIST_H_