Use the non-deprecated way to set the button labels
Use the non-deprecated way to set the button labels

Use label="" instead of the textContent

R=ojan@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/469423005

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@180312 bbb929c8-8fbe-4397-9dbb-9b2b20218538

nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra