[vr] Clicking on the security icon should prompt the user to bail out of VR

chrome/browser/android/vr_shell/textures/exit_prompt_texture.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_TEXTURES_EXIT_PROMPT_TEXTURE_H_
+#define CHROME_BROWSER_ANDROID_VR_SHELL_TEXTURES_EXIT_PROMPT_TEXTURE_H_
+
+#include "base/macros.h"
+#include "chrome/browser/android/vr_shell/textures/ui_texture.h"
+#include "ui/gfx/geometry/rect_f.h"
+
+namespace gfx {
+class PointF;
+}  // namespace gfx
+
+namespace vr_shell {
+
+struct ColorScheme;
+
+class ExitPromptTexture : public UiTexture {
+ public:
+  ExitPromptTexture();
+  ~ExitPromptTexture() override;
+  gfx::Size GetPreferredTextureSize(int width) const override;
+  gfx::SizeF GetDrawnSize() const override;
+
+  void SetPrimaryButtonHovered(bool hovered);
+  void SetPrimaryButtonPressed(bool pressed);
+  void SetSecondaryButtonHovered(bool hovered);
+  void SetSecondaryButtonPressed(bool pressed);
+
+  virtual bool HitsSecondaryButton(const gfx::PointF& position) const;
+  virtual bool HitsPrimaryButton(const gfx::PointF& position) const;
+
+ private:
+  void Draw(SkCanvas* sk_canvas, const gfx::Size& texture_size) override;
+
+  SkColor GetButtonColor(bool primary) const;
+  float ToPixels(float meters) const;
+  gfx::PointF PercentToPixels(const gfx::PointF& percent) const;
+  const ColorScheme& color_scheme() const;
+
+  gfx::RectF secondary_button_rect_;
+  gfx::RectF primary_button_rect_;
+  gfx::SizeF size_;
+
+  bool primary_hovered_ = false;
+  bool primary_pressed_ = false;
+  bool secondary_hovered_ = false;
+  bool secondary_pressed_ = false;
+
+  DISALLOW_COPY_AND_ASSIGN(ExitPromptTexture);
+};
+
+}  // namespace vr_shell
+
+#endif  // CHROME_BROWSER_ANDROID_VR_SHELL_TEXTURES_EXIT_PROMPT_TEXTURE_H_