For "Dangerous" file type, no user gesture will bypass the download warning.

BUG=170569
Review URL: https://codereview.chromium.org/12039015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@178072 0039d316-1c4b-4281-b951-d872f2087c98
void ChromeDownloadManagerDelegate::OpenDownload(DownloadItem* download) {
  platform_util::OpenItem(download->GetFullPath());
}

void ChromeDownloadManagerDelegate::OpenDownload(DownloadItem* download) {
  platform_util::OpenItem(download->GetFullPath());
}
