[Merge] lp:~unity-team/qtubuntu/DPR into lp:qtubuntu

[Daniel d'Andrada]

Review: Needs Fixing

In src/ubuntumirclient/window.cpp

"""
    // Window manager can give us a final size different from what we asked for
    // so let's check what we ended up getting
    {
        MirSurfaceParameters parameters;
        mir_surface_get_parameters(d->surface, &parameters);

        geometry.setWidth(divideAndRoundUp(parameters.width, devicePixelRatio()));
        geometry.setHeight(divideAndRoundUp(parameters.height, devicePixelRatio()));

        DLOG("[ubuntumirclient QPA] created surface has pixel size (%d, %d) and device-pixel size (%d, %d)",
                parameters.width, parameters.height, geometry.width(), geometry.height());
    }

    // Assume that the buffer size matches the surface size at creation time
    d->bufferSize = geometry.size();
"""

Here bufferSize will be initialized with a scaled size, but it should have the real size.
So bufferSize initialization should probably moved above the line "// Window manager can give us a final size different[...]".
-- 
https://code.launchpad.net/~unity-team/qtubuntu/DPR/+merge/257515
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