With the new mode --ignore-flaky-tests=unexpected in run_webkit_tests.py, test expectations are extended based on bot results from test results server.

When a bot result for a test is unexpected, the expectations for this test are extended with the result.

The group of builders to examine is specified with the new option --ignore-builder-category. This option can now also be used together with the existing modes, in order to choose a different set or builders (currently available: layout or deps builders).

Review URL: https://chromiumcodereview.appspot.com/16309010

git-svn-id: svn://svn.chromium.org/blink/trunk@152719 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Unreviewed gardening (CSS3 Text Decoration)

Cleaned up now passing getComputedStyle tests.

TBR=jchaffraix@chromium.org
BUG=251157

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=152653

Review URL: https://codereview.chromium.org/17415003

git-svn-id: svn://svn.chromium.org/blink/trunk@152720 bbb929c8-8fbe-4397-9dbb-9b2b20218538