Convert Ozone GL OSMesa implementation.

ui/ozone/platform/drm/gpu/gbm_surface_factory.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_OZONE_PLATFORM_DRM_GPU_GBM_SURFACE_FACTORY_H_
 #define UI_OZONE_PLATFORM_DRM_GPU_GBM_SURFACE_FACTORY_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 35 matching lines @@
       gfx::BufferFormat format,
       gfx::BufferUsage usage) override;
   scoped_refptr<NativePixmap> CreateNativePixmapFromHandle(
       gfx::AcceleratedWidget widget,
       gfx::Size size,
       gfx::BufferFormat format,
       const gfx::NativePixmapHandle& handle) override;
 
  private:
   std::unique_ptr<GLOzone> egl_implementation_;
+  std::unique_ptr<GLOzone> osmesa_implementation_;
 
   base::ThreadChecker thread_checker_;
 
   DrmThreadProxy* drm_thread_proxy_;
 
   std::map<gfx::AcceleratedWidget, GbmSurfaceless*> widget_to_surface_map_;
 
   DISALLOW_COPY_AND_ASSIGN(GbmSurfaceFactory);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRM_GPU_GBM_SURFACE_FACTORY_H_