GitLab

Ozone is actually creating the VSyncProvider. The caller will also take
ownership of the VSyncProvider. Updating the method definition to better reflect
the intent.

BUG=

Review URL: https://codereview.chromium.org/102563005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243688 0039d316-1c4b-4281-b951-d872f2087c98