[ios clean] Creates ToolsMenu model.

ios/clean/chrome/browser/ui/tools/tools_menu_model.h

+// Copyright 2017 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 IOS_CLEAN_CHROME_BROWSER_UI_TOOLS_TOOLS_MENU_MODEL_H_
+#define IOS_CLEAN_CHROME_BROWSER_UI_TOOLS_TOOLS_MENU_MODEL_H_
+
+#import <Foundation/Foundation.h>
+
+// Total number of possible menu items.
+const int kToolsMenuNumberOfItems = 16;
+
+// Struct for a single MenuModelItem.
+struct MenuModelItem {
+  // Item Title ID.
+  int title_id;
+  // Item Accessibility ID.
+  // TODO(crbug.com/682880): Move tools_menu_constants.h file to shared/.
+  NSString* accessibility_id;
+  // The ToolbarType on which the item is visible.
+  int toolbar_types;
+  // |visibility| is applied if a menu item is included for a given
+  // |toolbar_types|. A value of 0 means the menu item is always visible for
+  // the given |toolbar_types|.
+  int visibility;
+  // The selector name which will be called on the dispatcher, when the
+  // item is selected.
+  NSString* selector;
+};
+
+// Menu items can be marked as visible or not when Incognito is enabled.
+// The following bits are used for |visibility| field in |MenuModelItem|.
+typedef NS_OPTIONS(NSUInteger, ItemVisible) {
+  // clang-format off
+  ItemVisibleAlways            = 0,
+  ItemVisibleIncognitoOnly     = 1 << 0,
+  ItemVisibleNotIncognitoOnly  = 1 << 1,
+  // clang-format on
+};
+
+// Flags for different toolbar types.
+typedef NS_OPTIONS(NSUInteger, ToolbarType) {
+  // clang-format off
+  ToolbarTypeNone            = 0,
+  ToolbarTypeWeb             = 1 << 0,
+  ToolbarTypeSwitcher        = 1 << 1,
+  ToolbarTypeAll             = ToolbarTypeWeb | ToolbarTypeSwitcher,
+  // clang-format on
+};
+
+// All possible items.
+extern const MenuModelItem itemsModelList[kToolsMenuNumberOfItems];
+
+#endif  // IOS_CLEAN_CHROME_BROWSER_UI_TOOLS_TOOLS_MENU_MODEL_H_