mPresShell->FlushPendingNotifications(PR_FALSE);
mPresShell->FlushPendingNotifications(Flush_OnlyReflow);
void nsSVGOuterSVGFrame::InitiateReflow(){  mNeedsReflow = PR_FALSE;    // Generate a reflow command to reflow ourselves  nsHTMLReflowCommand *reflowCmd;  NS_NewHTMLReflowCommand(&reflowCmd, this, eReflowType_ReflowDirty);  if (!reflowCmd) {    NS_ERROR("error creating reflow command object");    return;  }    mPresShell->AppendReflowCommand(reflowCmd);  mPresShell->FlushPendingNotifications(PR_FALSE);  }