Updated baselines for two SVG tests.  These tests have been passing for a while, but the expectations were either stale or completely wrong.

* platform/chromium-cg-mac-leopard/svg/custom/use-elementInstance-event-target-expected.png: Added.
* platform/chromium-cg-mac-snowleopard/svg/W3C-SVG-1.1/struct-image-02-b-expected.png: Added.
* platform/chromium-cg-mac-snowleopard/svg/custom/use-elementInstance-event-target-expected.png: Added.
* platform/chromium-linux/svg/W3C-SVG-1.1/struct-image-02-b-expected.png: Added.
* platform/chromium-mac-leopard/svg/custom/use-elementInstance-event-target-expected.png: Added.
* platform/chromium-mac-snowleopard/svg/W3C-SVG-1.1/struct-image-02-b-expected.png: Added.
* platform/chromium-mac-snowleopard/svg/custom/use-elementInstance-event-target-expected.png: Added.
* platform/chromium-win/svg/W3C-SVG-1.1/struct-image-02-b-expected.png:
* platform/chromium-win/svg/W3C-SVG-1.1/struct-image-02-b-expected.txt:
* platform/chromium/test_expectations.txt:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@100944 268f45cc-cd09-0410-ab3c-d52691b4dbfc