FileAPI: Update outdated comments on ChildProcessSecurityPolicy


BUG=n/a
TEST=n/a

Review URL: https://codereview.chromium.org/52463005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232102 0039d316-1c4b-4281-b951-d872f2087c98
When showing a popup, correctly mark it as focused.

BUG=305988
R=marja@chromium.org

Review URL: https://codereview.chromium.org/52683002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232103 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 232102
SVN changes up to revision 232103