Disable several plugin tests while the test plugin is fixed.
Disable several plugin tests while the test plugin is fixed.

BUG=363099,371084
TBR=mkwst@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/659013002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@183789 bbb929c8-8fbe-4397-9dbb-9b2b20218538

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk