[REVIEW-3-5][CHERRY-PICKED-3-5] Fix fdo#45219 wrong transparency for animated objects.

[Radek Doulik]

Hi Thorsten,

looks good, cherry picked an pushed.

Cheers
Radek

On Fri, 2012-03-16 at 18:26 +0100, Thorsten Behrens wrote:
> Hi there,
> 
>   http://cgit.freedesktop.org/libreoffice/core/commit/?id=2c7e061997202df9e602e209cf40c61606582e8e
> 
> fixes the most obvious glitch in fdo#45219 - multiple paints of the
> same sprite on top of each other, killing the hue for transparent
> objects.
> 
> (std::unique in this case _needs_ to eliminate duplicate, but
> otherwise equal-under-SpriteWeakOrder entries. Also, std::unique
> wants a BinaryPredicate, not a StrictWeakOrder. Note further that
> the used rtl::Reference does have a working operator==)
> 
> Cheers,
> 
> -- Thorsten
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