Add a setting for enabling region based columns.

The intention is to enable this if the --enable-experimental-webkit-features
command line switch is specified. That needs to be done from the top-level
chromium repo, and there'll be a separate patch for that.

BUG=242905

Review URL: https://chromiumcodereview.appspot.com/15744005

git-svn-id: svn://svn.chromium.org/blink/trunk@152304 bbb929c8-8fbe-4397-9dbb-9b2b20218538
3 files changed
tree: 8e9a53b412d67e2b90e3dbdbd51fae4e890b7122
  1. third_party/