Remove ContextMenuController.

ios/chrome/browser/BUILD.gn

 # Copyright 2015 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.
 
 import("//build/config/features.gni")
 import("//ios/web/js_compile.gni")
 import("//third_party/protobuf/proto_library.gni")
 
 declare_args() {
   google_test_gaia_client_id = ""
@@ skipping 450 matching lines @@
     "ui/commands/open_url_command.h",
     "ui/commands/open_url_command.mm",
     "ui/commands/reading_list_add_command.h",
     "ui/commands/reading_list_add_command.mm",
     "ui/commands/set_up_for_testing_command.h",
     "ui/commands/set_up_for_testing_command.mm",
     "ui/commands/show_mail_composer_command.h",
     "ui/commands/show_mail_composer_command.mm",
     "ui/commands/show_signin_command.h",
     "ui/commands/show_signin_command.mm",
-    "ui/context_menu/context_menu_controller.h",
-    "ui/context_menu/context_menu_controller.mm",
     "ui/context_menu/context_menu_coordinator.h",
     "ui/context_menu/context_menu_coordinator.mm",
-    "ui/context_menu/context_menu_holder.h",
-    "ui/context_menu/context_menu_holder.mm",
-    "ui/context_menu/context_menu_provider.h",
     "ui/file_locations.h",
     "ui/file_locations.mm",
     "ui/image_util.h",
     "ui/image_util.mm",
     "ui/keyboard/UIKeyCommand+Chrome.h",
     "ui/keyboard/UIKeyCommand+Chrome.mm",
     "ui/keyboard/hardware_keyboard_watcher.h",
     "ui/keyboard/hardware_keyboard_watcher.mm",
     "ui/native_content_controller.h",
     "ui/native_content_controller.mm",
@@ skipping 313 matching lines @@
     "//ios/public/provider/chrome/browser:test_support",
     "//ios/web",
     "//net:test_support",
     "//sync",
     "//testing/gmock",
     "//testing/gtest",
     "//ui/base",
     "//url",
   ]
 }