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diff --git a/o3d/command_buffer/service/render_surface_gl.h b/o3d/command_buffer/service/render_surface_gl.h
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+/*
+ * Copyright 2009, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#ifndef GPU_COMMAND_BUFFER_SERVICE_CROSS_GL_RENDER_SURFACE_GL_H__
+#define GPU_COMMAND_BUFFER_SERVICE_CROSS_GL_RENDER_SURFACE_GL_H__
+
+// This file contains the definition of the OpenGL versions of
+// render surface-related resource classes.
+
+#include "command_buffer/service/texture_gl.h"
+#include "command_buffer/service/resource.h"
+
+namespace command_buffer {
+namespace o3d {
+
+class RenderSurfaceGL : public RenderSurface {
+ public:
+  RenderSurfaceGL(int width,
+                  int height,
+                  int mip_level,
+                  int side,
+                  TextureGL *texture);
+  virtual ~RenderSurfaceGL() {}
+
+  static RenderSurfaceGL* Create(int width,
+                                 int height,
+                                 int mip_level,
+                                 int side,
+                                 TextureGL *texture);
+  TextureGL* texture() {
+    return texture_;
+  }
+
+  int width() {
+    return width_;
+  }
+
+  int height() {
+    return height_;
+  }
+
+  int mip_level() {
+    return mip_level_;
+  }
+
+  int side() {
+    return side_;
+  }
+ private:
+  unsigned int width_;
+  unsigned int height_;
+  unsigned int mip_level_;
+  unsigned int side_;
+  TextureGL* texture_;
+  DISALLOW_COPY_AND_ASSIGN(RenderSurfaceGL);
+};
+
+class RenderDepthStencilSurfaceGL : public RenderDepthStencilSurface {
+ public:
+  RenderDepthStencilSurfaceGL(int width,
+                              int height);
+  virtual ~RenderDepthStencilSurfaceGL() {}
+
+  static RenderDepthStencilSurfaceGL* Create(
+    int width,
+    int height);
+
+  GLuint depth_buffer() const {
+    return render_buffers_[0];
+  }
+
+  GLuint stencil_buffer() const {
+    return render_buffers_[1];
+  }
+
+ private:
+  // Handles to the depth and stencil render-buffers, respectively.
+  GLuint render_buffers_[2];
+  unsigned int width_;
+  unsigned int height_;
+  DISALLOW_COPY_AND_ASSIGN(RenderDepthStencilSurfaceGL);
+};
+
+}  // namespace o3d
+}  // namespace command_buffer
+
+#endif  // GPU_COMMAND_BUFFER_SERVICE_WIN_GL_RENDER_SURFACE_GL_H__
+