Cleanup: Make the PrintingContext::UpdatePrintSettings code more consistent across platfroms.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/6932021

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@84154 0039d316-1c4b-4281-b951-d872f2087c98
3 files changed