Adjusting TestExpectations for object-embedding-svg-delayed-size-negotiation-2.htm

BUG=392626
TBR=ojan@chromium.org

Review URL: https://codereview.chromium.org/377413004

git-svn-id: svn://svn.chromium.org/blink/trunk@177766 bbb929c8-8fbe-4397-9dbb-9b2b20218538