VR: System indicator rework.

chrome/browser/android/vr_shell/ui_elements/system_indicator.h

+// 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.
+
+#ifndef CHROME_BROWSER_ANDROID_VR_SHELL_UI_ELEMENTS_SYSTEM_INDICATOR_H_
+#define CHROME_BROWSER_ANDROID_VR_SHELL_UI_ELEMENTS_SYSTEM_INDICATOR_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "chrome/browser/android/vr_shell/ui_elements/textured_element.h"
+#include "ui/gfx/vector_icon_types.h"
+
+namespace vr_shell {
+
+class UiTexture;
+
+class SystemIndicator : public TexturedElement {
+ public:
+  explicit SystemIndicator(int preferred_width,
+                           float heigh_meters,
+                           const gfx::VectorIcon& icon,
+                           int string_id);
+  ~SystemIndicator() override;
+
+ protected:
+  void UpdateElementSize() override;
+
+ private:
+  UiTexture* GetTexture() const override;
+  std::unique_ptr<UiTexture> texture_;
+  float height_meters_;
+
+  DISALLOW_COPY_AND_ASSIGN(SystemIndicator);
+};
+
+}  // namespace vr_shell
+
+#endif  // CHROME_BROWSER_ANDROID_VR_SHELL_UI_ELEMENTS_SYSTEM_INDICATOR_H_