Fixes the issue with omnibox suggestions, etc not showing up on non AURA trunk on Windows.

In the client size changed notification, we were adjusting for the inset adjustment which we do in the
WM_NCCALCSIZE handling without checking whether this adjustment was applied in the first place
leading to the windows not showing up.

BUG=296820,296836
R=scottmg@chromium.org, sky@chromium.org, scottmg, sky

Review URL: https://codereview.chromium.org/24353005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225067 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 225067