Add test suppression for http/tests/security/shape-image-cors.html.
Add test suppression for http/tests/security/shape-image-cors.html.

TBR=yhirano
BUG=431778

Review URL: https://codereview.chromium.org/713073002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@185052 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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