Mark flaky tests for arm.

Makes the whole test-api a non-tree-closer on arm.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23961006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16665 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Revert "Increase test timeout on slow architectures."

This reverts commit 200c7cbdbc90ec2001ee4e0da7470cb508585e0d.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23475036

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16666 ce2b1a6d-e550-0410-aec6-3dcde31c8c00