Multi-profiles intro dialog modified to fit the mock.

BUG=230862

Review URL: https://codereview.chromium.org/137143007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247286 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 247286
Disabling NaClBrowserTestNewlib.Bad on windows because it is flaky 

BUG=338444
TBR=ncbray@chromium.org

Review URL: https://codereview.chromium.org/147583003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247287 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 247287