[Print Preview]: Added code to support pdf fit to page functionality.

BUG=85132
TEST=none


Review URL: https://chromiumcodereview.appspot.com/10083060

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@137498 0039d316-1c4b-4281-b951-d872f2087c98
void PrintPreviewMessageHandler::OnPrintPreviewFailed(int document_cookie) {
  StopWorker(document_cookie);

  PrintPreviewUI* print_preview_ui = GetPrintPreviewUI();
  if (!print_preview_ui)
    return;
  print_preview_ui->OnPrintPreviewFailed();
}

void PrintPreviewMessageHandler::OnPrintPreviewFailed(int document_cookie) {
  StopWorker(document_cookie);

  PrintPreviewUI* print_preview_ui = GetPrintPreviewUI();
  if (!print_preview_ui)
    return;
  print_preview_ui->OnPrintPreviewFailed();
}
