Remove GetMonitorInfoWrapper, which is no longer needed.

We always use ASH on Windows, so the code in the wrapper does not have any effect. This removes the wrapper and updates the callers to use the unwrapped Windows API verison.

R=shrikant@chromium.org
BUG=247430

Review URL: https://codereview.chromium.org/137353002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247204 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 247204