VR: Add a native UI element scene manager

chrome/browser/android/vr_shell/ui_scene_manager.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_ANDROID_VR_SHELL_UI_SCENE_MANAGER_H_
+#define CHROME_BROWSER_ANDROID_VR_SHELL_UI_SCENE_MANAGER_H_
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "base/values.h"
+
+namespace vr_shell {
+
+class UiScene;
+
+class UiSceneManager {
+ public:
+  explicit UiSceneManager(UiScene* scene);
+  ~UiSceneManager();
+
+  base::WeakPtr<UiSceneManager> GetWeakPtr();
+
+  void UpdateScene(std::unique_ptr<base::ListValue> commands);
+
+  void SetWebVRSecureOrigin(bool secure);
+  void SetWebVRMode(bool web_vr);
+
+ private:
+  UiScene* scene_;
+
+  bool web_vr_mode_ = false;
+  bool secure_origin_ = false;
+
+  base::WeakPtrFactory<UiSceneManager> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(UiSceneManager);
+};
+
+}  // namespace vr_shell
+
+#endif  // CHROME_BROWSER_ANDROID_VR_SHELL_UI_SCENE_MANAGER_H_