Implement request mobile site.

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

Index: ios/chrome/browser/ui/tools_menu/tools_menu_view_controller.mm
diff --git a/ios/chrome/browser/ui/tools_menu/tools_menu_view_controller.mm b/ios/chrome/browser/ui/tools_menu/tools_menu_view_controller.mm
index 6b8b3ba6f6fef5e54b45b5e9d20184de4ef206eb..2d578f37271ff693aea227262310b41fd0b4e48f 100644
--- a/ios/chrome/browser/ui/tools_menu/tools_menu_view_controller.mm
+++ b/ios/chrome/browser/ui/tools_menu/tools_menu_view_controller.mm
@@ -37,10 +37,6 @@
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/l10n/l10n_util_mac.h"
 
-// TODO(crbug.com/678047) Remove this switch when request mobile site
-// functionality is implemented.
-#define HIDE_REQUEST_MOBILE_SITE_CELL
-
 using ios::material::TimingFunction;
 
 namespace {
@@ -273,12 +269,6 @@ - (void)initializeMenuWithConfiguration:(ToolsMenuConfiguration*)configuration {
       break;
     case web::UserAgentType::DESKTOP:
       [self setItemEnabled:YES withTag:IDC_REQUEST_MOBILE_SITE];
-
-// TODO(crbug.com/678047) Remove this switch when request mobile site
-// functionality is implemented.
-#ifdef HIDE_REQUEST_MOBILE_SITE_CELL
-      [self setItemEnabled:NO withTag:IDC_REQUEST_DESKTOP_SITE];
-#endif
       break;
   }