gdiplus: fix GdipFillRectangleI no effect on memory DC whose window origin point has changed

[Marvin]

Hi,

While running your changed tests on Windows, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?
Full results can be found at
https://testbot.winehq.org/JobDetails.pl?Key=10695

Your paranoid android.


=== w7u (32 bit graphics) ===
graphics.c:5575: Test failed: Expected the color of memory bitmap is blue!graphics: 4645 tests executed (0 marked as todo, 1 failure), 0 skipped.