Editing: Minor cleanup/Removal of redundant function call

Minor code cleanup and removal of redundant upstream() call.

All layout tests executed.

Review URL: https://codereview.chromium.org/74693003

git-svn-id: svn://svn.chromium.org/blink/trunk@162222 bbb929c8-8fbe-4397-9dbb-9b2b20218538