MD Settings: Add Google Play Store (Arc++) section

chrome/browser/ui/webui/settings/chromeos/android_apps_handler.h

+// 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.
+
+#ifndef CHROME_BROWSER_UI_WEBUI_SETTINGS_CHROMEOS_ANDROID_APPS_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_SETTINGS_CHROMEOS_ANDROID_APPS_HANDLER_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "base/scoped_observer.h"
+#include "chrome/browser/ui/app_list/arc/arc_app_list_prefs.h"
+#include "chrome/browser/ui/webui/settings/settings_page_ui_handler.h"
+
+class Profile;
+
+namespace base {
+class DictionaryValue;
+}
+
+namespace chromeos {
+namespace settings {
+
+class AndroidAppsHandler : public ::settings::SettingsPageUIHandler,
+                           public ArcAppListPrefs::Observer {
+ public:
+  explicit AndroidAppsHandler(Profile* profile);
+  ~AndroidAppsHandler() override;
+
+  // SettingsPageUIHandler

[michaelpg, 2016/12/01 20:15:34]

nit: " overrides." like below

[stevenjb, 2016/12/02 00:39:19]

I changed the copied code below. Preferences vary, but I prefer short.
'overrides' is redundant.

+  void RegisterMessages() override;
+  void OnJavascriptAllowed() override;
+  void OnJavascriptDisallowed() override;
+
+  // ArcAppListPrefs::Observer overrides.
+  void OnAppReadyChanged(const std::string& app_id, bool ready) override;
+  void OnAppRemoved(const std::string& app_id) override;
+  void OnAppRegistered(const std::string& app_id,
+                       const ArcAppListPrefs::AppInfo& app_info) override;
+
+ private:
+  std::unique_ptr<base::DictionaryValue> BuildAndroidAppsInfo();
+  void OnAppChanged(const std::string& app_id);
+  void HandleGetAndroidAppsInfo(const base::ListValue* args);
+  void SendAndroidAppsInfo();
+  void ShowAndroidAppsSettings(const base::ListValue* args);
+
+  ScopedObserver<ArcAppListPrefs, ArcAppListPrefs::Observer>
+      arc_prefs_observer_;
+  Profile* profile_;  // unowned
+  base::WeakPtrFactory<AndroidAppsHandler> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(AndroidAppsHandler);
+};
+
+}  // namespace settings
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_UI_WEBUI_SETTINGS_CHROMEOS_ANDROID_APPS_HANDLER_H_