cleanup: Split ibus_controller.h into 5 headers

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_
+#pragma once
+
+#include <set>
+#include <string>
+#include <vector>
+
+#include "base/basictypes.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 true if |xkb_layout| is supported.
+  bool XkbLayoutIsSupported(const std::string& xkb_layout) const;
+
+  // Returns all input methods that are supported, including ones not active.
+  // Caller has to delete the returned list. This function never returns NULL.
+  // Note that input method extensions are not included in the result.
+  InputMethodDescriptors* GetSupportedInputMethods() const;
+
+ private:
+  std::set<std::string> supported_input_methods_;
+  std::set<std::string> supported_layouts_;
+
+  DISALLOW_COPY_AND_ASSIGN(InputMethodWhitelist);
+};
+
+}  // namespace input_method
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_WHITELIST_H_