Make NotifyHeadersComplete the last call in the function.

BUG=82903
Review URL: http://codereview.chromium.org/7038017

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@85719 0039d316-1c4b-4281-b951-d872f2087c98
void BlobURLRequestJob::AdvanceItem() {
  CloseStream();

  item_index_++;
  current_item_offset_ = 0;
}

void BlobURLRequestJob::AdvanceItem() {
  CloseStream();

  item_index_++;
  current_item_offset_ = 0;
}
