Revert of https://codereview.chromium.org/75133007/
Reason for revert: regressed performance test

TBR=ojan@chromium.org
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/103373008

git-svn-id: svn://svn.chromium.org/blink/trunk@164024 bbb929c8-8fbe-4397-9dbb-9b2b20218538