O2D: Fix graphical artifacting with transparent images caused by using non-pr...

core/cross/cairo/texture_cairo.h

 /*
- * Copyright 2010, Google Inc.
+ * Copyright 2011, 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
@@ skipping 79 matching lines @@
   // Overridden from Texture2D
   virtual RenderSurface::Ref PlatformSpecificGetRenderSurface(int mip_level);
 
   // Returns the implementation-specific texture handle for this texture.
   virtual void* GetTextureHandle() const;
 
  private:
   // Initializes the Texture2D.
   TextureCairo(ServiceLocator* service_locator,
                cairo_surface_t* image_surface,
-               cairo_t* image_surface_context,
                Texture::Format format,
                int levels,
                int width,
                int height,
                bool enable_render_surfaces);
 
   // The 2d renderer object to be used by client.
   RendererCairo* renderer_;
   // The Cairo image for this texture.
   cairo_surface_t* image_surface_;
-  // A Cairo drawing context for updating this image.
-  cairo_t* image_surface_context_;
 };
 
 }  // namespace o2d
 
 }  // namespace o3d
 
 #endif  // O3D_CORE_CROSS_CAIRO_TEXTURE_CAIRO_H_