Insert errors in the flakiness dashboard before the body element.
Insert errors in the flakiness dashboard before the body element.

This ensures that dashboards that set document.body.innerHTML
don't clobber the error or have the error go below the content.

TBR=jparent@chromium.org

Review URL: https://codereview.chromium.org/16557006

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@151956 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs