[Chromium] Unreviewed gardening - rebaseline a handful of image tests for chromium-mac-lion.
[Chromium] Unreviewed gardening - rebaseline a handful of image tests for chromium-mac-lion.

* platform/chromium-mac-lion/platform/chromium/compositing/layout-width-change-expected.png: Added.
* platform/chromium-mac-lion/platform/chromium/compositing/video-frame-size-change-expected.png: Added.
* platform/chromium-mac-lion/tables/mozilla_expected_failures/core/backgrounds-expected.png: Added.
* platform/chromium-mac-lion/tables/mozilla_expected_failures/core/captions1-expected.png: Added.
* platform/chromium-mac-lion/tables/mozilla_expected_failures/core/captions2-expected.png: Added.
* platform/chromium-mac-lion/tables/mozilla_expected_failures/core/captions3-expected.png: Added.
* platform/chromium-mac-lion/tables/mozilla_expected_failures/marvin/backgr_border-table-cell-expected.png: Added.
* platform/chromium-mac-lion/tables/mozilla_expected_failures/marvin/backgr_border-table-column-group-expected.png: Added.

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@134076 bbb929c8-8fbe-4397-9dbb-9b2b20218538
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