Add the Play Store app search to the launcher.

chrome/browser/ui/app_list/playstore_app_context_menu.cc

+// 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 "chrome/browser/ui/app_list/playstore_app_context_menu.h"
+
+#include <string>
+
+#include "chrome/browser/ui/app_list/app_context_menu_delegate.h"
+#include "chrome/grit/generated_resources.h"
+
+PlayStoreAppContextMenu::PlayStoreAppContextMenu(
+    app_list::AppContextMenuDelegate* delegate,
+    Profile* profile,
+    AppListControllerDelegate* controller)
+    : app_list::AppContextMenu(delegate, profile, std::string(), controller) {}
+
+PlayStoreAppContextMenu::~PlayStoreAppContextMenu() = default;
+
+void PlayStoreAppContextMenu::BuildMenu(ui::SimpleMenuModel* menu_model) {
+  // App Info item.
+  menu_model->AddItemWithStringId(INSTALL, IDS_APP_CONTEXT_MENU_INSTALL);
+}
+
+bool PlayStoreAppContextMenu::IsCommandIdEnabled(int command_id) const {
+  switch (command_id) {
+    case INSTALL:
+      return true;
+    default:
+      return app_list::AppContextMenu::IsCommandIdEnabled(command_id);
+  }
+}
+
+void PlayStoreAppContextMenu::ExecuteCommand(int command_id, int event_flags) {
+  switch (command_id) {
+    case INSTALL:
+      delegate()->ExecuteLaunchCommand(event_flags);
+      break;
+    default:
+      app_list::AppContextMenu::ExecuteCommand(command_id, event_flags);
+  }
+}