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diff --git a/chrome/browser/ui/toolbar/encoding_menu_controller.h b/chrome/browser/ui/toolbar/encoding_menu_controller.h
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+++ b/chrome/browser/ui/toolbar/encoding_menu_controller.h
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+// Copyright (c) 2010 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_UI_TOOLBAR_ENCODING_MENU_CONTROLLER_H_
+#define CHROME_BROWSER_UI_TOOLBAR_ENCODING_MENU_CONTROLLER_H_
+#pragma once
+
+#include <utility>
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"  // For DISALLOW_COPY_AND_ASSIGN
+#include "base/gtest_prod_util.h"
+#include "base/string16.h"
+
+class Profile;
+
+// Cross-platform logic needed for the encoding menu.
+// For now, we don't need to track state so all methods are static.
+class EncodingMenuController {
+  FRIEND_TEST_ALL_PREFIXES(EncodingMenuControllerTest, EncodingIDsBelongTest);
+  FRIEND_TEST_ALL_PREFIXES(EncodingMenuControllerTest, IsItemChecked);
+
+ public:
+  typedef std::pair<int, string16> EncodingMenuItem;
+  typedef std::vector<EncodingMenuItem> EncodingMenuItemList;
+
+ public:
+  EncodingMenuController() {}
+
+  // Given a command ID, does this command belong to the encoding menu?
+  bool DoesCommandBelongToEncodingMenu(int id);
+
+  // Returns true if the given encoding menu item (specified by item_id)
+  // is checked.  Note that this header is included from objc, where the name
+  // "id" is reserved.
+  bool IsItemChecked(Profile* browser_profile,
+                     const std::string& current_tab_encoding,
+                     int item_id);
+
+  // Fills in a list of menu items in the order they should appear in the menu.
+  // Items whose ids are 0 are separators.
+  void GetEncodingMenuItems(Profile* profile,
+                            EncodingMenuItemList* menuItems);
+
+ private:
+  // List of all valid encoding GUI IDs.
+  static const int kValidEncodingIds[];
+  const int* ValidGUIEncodingIDs();
+  int NumValidGUIEncodingIDs();
+
+  DISALLOW_COPY_AND_ASSIGN(EncodingMenuController);
+};
+
+#endif  // CHROME_BROWSER_UI_TOOLBAR_ENCODING_MENU_CONTROLLER_H_