Add initial GpuMemoryBufferSurfaceTexture implementation.

ui/gl/gl_image_surface_texture.h

+// Copyright 2014 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_GL_GL_IMAGE_SURFACE_TEXTURE_H_
+#define UI_GL_GL_IMAGE_SURFACE_TEXTURE_H_
+
+#include "ui/gl/gl_image.h"
+
+#include "base/memory/ref_counted.h"
+
+namespace gfx {
+
+class SurfaceTexture;
+
+class GL_EXPORT GLImageSurfaceTexture : public GLImage {
+ public:
+  explicit GLImageSurfaceTexture(gfx::Size size);
+
+  bool Initialize(gfx::GpuMemoryBufferHandle buffer);
+
+  // Overridden from GLImage:
+  virtual void Destroy() OVERRIDE;
+  virtual gfx::Size GetSize() OVERRIDE;
+  virtual bool BindTexImage(unsigned target) OVERRIDE;
+  virtual void ReleaseTexImage(unsigned target) OVERRIDE {}
+  virtual void WillUseTexImage() OVERRIDE {}
+  virtual void DidUseTexImage() OVERRIDE {}
+  virtual void WillModifyTexImage() OVERRIDE {}
+  virtual void DidModifyTexImage() OVERRIDE {}
+
+ protected:
+  virtual ~GLImageSurfaceTexture();
+
+ private:
+  scoped_refptr<SurfaceTexture> surface_texture_;
+  gfx::Size size_;
+  int texture_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(GLImageSurfaceTexture);
+};
+
+}  // namespace gfx
+
+#endif  // UI_GL_GL_IMAGE_SURFACE_TEXTURE_H_