Rendering Insecure WebVR Warnings into a texture with Skia.

chrome/browser/android/vr_shell/textures/ui_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_UI_TEXTURE_H_
+#define CHROME_BROWSER_ANDROID_VR_SHELL_TEXTURES_UI_TEXTURE_H_
+
+#include <memory>
+
+#include "third_party/skia/include/core/SkSurface.h"
+#include "ui/gfx/geometry/size.h"
+
+namespace cc {
+class PaintFlags;
+}  // namespace cc
+
+namespace gfx {
+class Canvas;
+}  // namespace gfx
+
+namespace vr_shell {
+
+class UITexture {
+ public:
+  UITexture(int texture_handle, int texture_size);
+  virtual ~UITexture();
+
+  void DrawAndLayout();
+  void Flush();
+  gfx::Size size() const { return size_; }
+
+ protected:
+  virtual void Draw(gfx::Canvas* canvas) = 0;
+  virtual void SetSize() = 0;
+  void DrawText(gfx::Canvas* canvas,
+                const std::string& text,
+                const cc::PaintFlags& flags,
+                float max_width,
+                bool v_centered);
+
+  int texture_handle_;
+  int texture_size_;
+  gfx::Size size_;
+  sk_sp<SkSurface> surface_;
+};
+
+}  // namespace vr_shell
+
+#endif  // CHROME_BROWSER_ANDROID_VR_SHELL_TEXTURES_UI_TEXTURE_H_