Convert Ozone cast to directly create GLSurfaces.

ui/ozone/platform/cast/gl_surface_cast.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 UI_OZONE_PLATFORM_CAST_GL_SURFACE_CAST_H_
+#define UI_OZONE_PLATFORM_CAST_GL_SURFACE_CAST_H_
+
+#include "base/macros.h"
+#include "ui/gfx/geometry/size.h"
+#include "ui/gfx/native_widget_types.h"
+#include "ui/gfx/overlay_transform.h"
+#include "ui/gfx/swap_result.h"
+#include "ui/gl/gl_image.h"
+#include "ui/gl/gl_surface_egl.h"
+
+namespace ui {
+
+class SurfaceFactoryCast;
+
+class GLSurfaceCast : public gl::NativeViewGLSurfaceEGL {
+ public:
+  GLSurfaceCast(gfx::AcceleratedWidget widget, SurfaceFactoryCast* parent);
+
+  // gl::GLSurface:
+  gfx::SwapResult SwapBuffers() override;
+  bool Resize(const gfx::Size& size,
+              float scale_factor,
+              bool has_alpha) override;
+  bool ScheduleOverlayPlane(int z_order,
+                            gfx::OverlayTransform transform,
+                            gl::GLImage* image,
+                            const gfx::Rect& bounds_rect,
+                            const gfx::RectF& crop_rect) override;
+  EGLConfig GetConfig() override;
+
+ protected:
+  ~GLSurfaceCast() override;
+
+  gfx::AcceleratedWidget widget_;
+  SurfaceFactoryCast* parent_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(GLSurfaceCast);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_CAST_GL_SURFACE_CAST_H_