Mojo: Fix our copyright notices.

Apparently, our current notice doesn't have the "(c)". Maybe if I fix it
in enough places, we'll stop copying-and-pasting in the (old)
now-incorrect notice.

(Also do some other drive-by comment/whitespace fixes.)

R=sky@chromium.org, davemoore@chromium.org
NOTRY=True

Review URL: https://codereview.chromium.org/86483006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237186 0039d316-1c4b-4281-b951-d872f2087c98
Move some static methods into InfoBar from the global namespace.

BUG=none
TEST=none
R=sky@chromium.org

Review URL: https://codereview.chromium.org/85383008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237187 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237186
SVN changes up to revision 237187