GitLab

Use gfx::CrossProduct() instead of defining a new static function.

BUG=

Review URL: https://codereview.chromium.org/444983002

Cr-Commit-Position: refs/heads/master@{#288372}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@288372 0039d316-1c4b-4281-b951-d872f2087c98