Revert 143656 - Add an IPC channel between the NaCl loader process and the renderer.
BUG=116317
TEST=ppapi, nacl tests, manual testing for experimental IPC proxy.
Review URL: https://chromiumcodereview.appspot.com/10641016

TBR=bbudge@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10625007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@143665 0039d316-1c4b-4281-b951-d872f2087c98
const FileDownloader* Plugin::FindFileDownloader(
    PP_Resource url_loader) const {
  const FileDownloader* file_downloader = NULL;
  if (url_loader == nexe_downloader_.url_loader()) {
    file_downloader = &nexe_downloader_;
  } else {
    std::set<FileDownloader*>::const_iterator it = url_downloaders_.begin();
    while (it != url_downloaders_.end()) {
      if (url_loader == (*it)->url_loader()) {
        file_downloader = (*it);
        break;
      }
      ++it;
    }
  }
  return file_downloader;
}

const FileDownloader* Plugin::FindFileDownloader(
    PP_Resource url_loader) const {
  const FileDownloader* file_downloader = NULL;
  if (url_loader == nexe_downloader_.url_loader()) {
    file_downloader = &nexe_downloader_;
  } else {
    std::set<FileDownloader*>::const_iterator it = url_downloaders_.begin();
    while (it != url_downloaders_.end()) {
      if (url_loader == (*it)->url_loader()) {
        file_downloader = (*it);
        break;
      }
      ++it;
    }
  }
  return file_downloader;
}
