[ios] Creates ToolsMenuConstants file

ios/chrome/browser/ui/tools_menu/tools_menu_model.mm

 // 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.
 
 #include "ios/chrome/browser/ui/tools_menu/tools_menu_model.h"
 
 #include "components/reading_list/core/reading_list_switches.h"
 #include "components/strings/grit/components_strings.h"
 #include "ios/chrome/browser/experimental_flags.h"
 #include "ios/chrome/browser/ui/commands/ios_command_ids.h"
 #import "ios/chrome/browser/ui/tools_menu/reading_list_menu_view_item.h"
+#include "ios/chrome/browser/ui/tools_menu/tools_menu_constants.h"
 #include "ios/chrome/browser/ui/ui_util.h"
 #include "ios/chrome/grit/ios_strings.h"
 #include "ios/public/provider/chrome/browser/chrome_browser_provider.h"
 #import "ios/public/provider/chrome/browser/user_feedback/user_feedback_provider.h"
+#include "ios/web/public/user_agent.h"
+
+// TODO(crbug.com/678047) Remove this switch when request mobile site
+// functionality is implemented.
+#define HIDE_REQUEST_MOBILE_SITE_CELL
 
 // Menu items can be marked as visible or not when Incognito is enabled.
 // The following bits are used for |visibility| field in |MenuItemInfo|.
 const NSInteger kVisibleIncognitoOnly = 1 << 0;
 const NSInteger kVisibleNotIncognitoOnly = 1 << 1;
 
 // Declare all the possible items.
 const MenuItemInfo itemInfoList[] = {
     // clang-format off
   { IDS_IOS_TOOLS_MENU_NEW_TAB,           kToolsMenuNewTabId,
@@ skipping 39 matching lines @@
   { IDS_IOS_TOOLS_MENU_SETTINGS,          kToolsMenuSettingsId,
     IDC_OPTIONS,                          ToolbarTypeAll,
     0,                                    nil },
   { IDS_IOS_TOOLS_MENU_HELP_MOBILE,           kToolsMenuHelpId,
     IDC_HELP_PAGE_VIA_MENU,               ToolbarTypeWebAll,
     0,                                    nil },
     // clang-format on
 };
 
 bool ToolsMenuItemShouldBeVisible(const MenuItemInfo& item,
-                                  bool incognito,
-                                  ToolbarType toolbarType) {
+                                  ToolbarType toolbarType,
+                                  ToolsMenuConfiguration* configuration) {
   if (!(item.toolbar_types & toolbarType))
     return false;
 
-  if (incognito && (item.visibility & kVisibleNotIncognitoOnly))
+  if (configuration.inIncognito && (item.visibility & kVisibleNotIncognitoOnly))
     return false;
 
-  if (!incognito && (item.visibility & kVisibleIncognitoOnly))
+  if (!configuration.inIncognito && (item.visibility & kVisibleIncognitoOnly))
     return false;
 
   switch (item.title_id) {
     case IDS_IOS_TOOLBAR_SHOW_TABS:
       return IsIPadIdiom();
     case IDS_IOS_TOOLS_MENU_READER_MODE:
       return experimental_flags::IsReaderModeEnabled();
     case IDS_IOS_TOOLS_MENU_READING_LIST:
       return reading_list::switches::IsReadingListEnabled();
     case IDS_IOS_TOOLS_MENU_SUGGESTIONS:
       return experimental_flags::IsSuggestionsUIEnabled();
     case IDS_IOS_OPTIONS_REPORT_AN_ISSUE:
-      return !ios::GetChromeBrowserProvider()
-                  ->GetUserFeedbackProvider()
-                  ->IsUserFeedbackEnabled();
+      return ios::GetChromeBrowserProvider()
+          ->GetUserFeedbackProvider()
+          ->IsUserFeedbackEnabled();
+    // TODO(crbug.com/696676): Talk to UI/UX people to decide the correct
+    // behavior of "Requestion Desktop/Mobile Site" (e.g. Whether user agent
+    // flag should stick when going backward and which cell should be visible
+    // when navigating to native pages).
+    case IDS_IOS_TOOLS_MENU_REQUEST_DESKTOP_SITE:
+#ifdef HIDE_REQUEST_MOBILE_SITE_CELL
+      return true;
+#else
+      return (configuration.userAgentType != web::UserAgentType::DESKTOP);
+#endif
+    case IDS_IOS_TOOLS_MENU_REQUEST_MOBILE_SITE:
+// TODO(crbug.com/678047) Remove this switch when request mobile site
+// functionality is implemented.
+#ifdef HIDE_REQUEST_MOBILE_SITE_CELL
+      return false;
+#else
+      return (configuration.userAgentType == web::UserAgentType::DESKTOP);
+#endif
     default:
       return true;
   }
 }