Unreviewed; new chromium GPU test baselines.

        These tests required rebaselining after the skia roll in
        http://src.chromium.org/viewvc/chrome?view=rev&revision=70835.

        * platform/chromium-gpu-linux/fast/canvas/canvas-text-alignment-expected.checksum:
        * platform/chromium-gpu-linux/fast/canvas/canvas-text-alignment-expected.png:
        * platform/chromium-gpu-linux/fast/canvas/fillrect_gradient-expected.checksum:
        * platform/chromium-gpu-linux/fast/canvas/fillrect_gradient-expected.png:
        * platform/chromium-gpu-win/fast/canvas/canvas-text-alignment-expected.checksum:
        * platform/chromium-gpu-win/fast/canvas/canvas-text-alignment-expected.png:
        * platform/chromium-gpu-win/fast/canvas/canvas-text-alignment-expected.txt:
        * platform/chromium-gpu-win/fast/canvas/fillrect_gradient-expected.checksum:
        * platform/chromium-gpu-win/fast/canvas/fillrect_gradient-expected.png:
        * platform/chromium-gpu-win/fast/canvas/fillrect_gradient-expected.txt:
        * platform/chromium-gpu-win/fast/canvas/gradient-add-second-start-end-stop-expected.checksum:
        * platform/chromium-gpu-win/fast/canvas/gradient-add-second-start-end-stop-expected.png:
        * platform/chromium-gpu-win/fast/canvas/gradient-add-second-start-end-stop-expected.txt:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@75509 268f45cc-cd09-0410-ab3c-d52691b4dbfc