Rebaseline unload-hyperlink-targeted.html for r175416

https://src.chromium.org/viewvc/blink?view=rev&revision=175416

BUG=none
TBR=peter@chromium.org

Review URL: https://codereview.chromium.org/315423002

git-svn-id: svn://svn.chromium.org/blink/trunk@175613 bbb929c8-8fbe-4397-9dbb-9b2b20218538