Add "Open with <ARC-app-name>" items to the context menu

ash/renderer_context_menu/open_with_menu_controller.cc

+// Copyright 2016 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 "ash/renderer_context_menu/open_with_menu_controller.h"
+
+namespace ash {
+
+OpenWithMenuController::OpenWithMenuController() : delegate_(nullptr) {}
+
+void OpenWithMenuController::SetDelegate(Delegate* delegate) {
+  delegate_ = delegate;
+}
+
+RenderViewContextMenuObserver* OpenWithMenuController::CreateMenu(
+    RenderViewContextMenuProxy* proxy,
+    int menu_id_start,
+    size_t num_menu_items,
+    int sub_menu_id_start,
+    size_t num_sub_menu_items) {
+  if (!delegate_)
+    return nullptr;
+  return delegate_->CreateMenu(proxy, menu_id_start, num_menu_items,
+                               sub_menu_id_start, num_sub_menu_items);
+}
+
+}  // namespace ash