mDocument->UnblockOnload();
mDocument->UnblockOnload(PR_FALSE);
PresShell::DoneRemovingReflowCommands(){  // We want to unblock here even if we're destroying, since onload  // can well fire with no presentation in sight.  So just check  // whether we actually blocked onload.  if (mRCCreatedDuringLoad == 0 && mDocumentOnloadBlocked) {    mDocument->UnblockOnload();    mDocumentOnloadBlocked = PR_FALSE;  }}