Unreviewed; test expectations update.

        Add new results for new tests introduced in r75097.

        * platform/chromium-mac/fast/gradients/css3-repeating-linear-gradients-expected.checksum: Added.
        * platform/chromium-mac/fast/gradients/css3-repeating-linear-gradients-expected.png: Added.
        * platform/chromium-win/fast/gradients/css3-repeating-linear-gradients-expected.checksum: Added.
        * platform/chromium-win/fast/gradients/css3-repeating-linear-gradients-expected.png: Added.
        * platform/chromium/test_expectations.txt:
        


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@75221 268f45cc-cd09-0410-ab3c-d52691b4dbfc