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
void PrintWebViewHelper::OnInitiatePrintPreview() {
  DCHECK(is_preview_);
  WebFrame* frame;
  if (GetPrintFrame(&frame)) {
    print_preview_context_.InitWithFrame(frame);
    RequestPrintPreview();
  }
}

void PrintWebViewHelper::OnInitiatePrintPreview() {
  DCHECK(is_preview_);
  WebFrame* frame;
  if (GetPrintFrame(&frame)) {
    print_preview_context_.InitWithFrame(frame);
    RequestPrintPreview();
  }
}
