Fix print preview workflow to reflect settings of selected printer.

BUG=95110
TEST=none


Review URL: http://codereview.chromium.org/7831041

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@102242 0039d316-1c4b-4281-b951-d872f2087c98
const MockPrinterPage* MockPrinter::GetPrintedPage(unsigned int pageno) const {
  if (pages_.size() > pageno)
    return pages_[pageno];
  else
    return NULL;
}

const MockPrinterPage* MockPrinter::GetPrintedPage(unsigned int pageno) const {
  if (pages_.size() > pageno)
    return pages_[pageno];
  else
    return NULL;
}
