Gardening: inspector-protocol/runtime-getProperties.html expectations

TBR=eustas@chromium.org
BUG=276262

Review URL: https://codereview.chromium.org/23068012

git-svn-id: svn://svn.chromium.org/blink/trunk@156389 bbb929c8-8fbe-4397-9dbb-9b2b20218538