Clear out some minor TODOs.

BUG=none

Review URL: https://codereview.chromium.org/1047063002

Cr-Commit-Position: refs/heads/master@{#322959}
bool AutofillDialogViews::IsDialogButtonEnabled(ui::DialogButton button) const {
  return delegate_->IsDialogButtonEnabled(button);
}

bool AutofillDialogViews::IsDialogButtonEnabled(ui::DialogButton button) const {
  return delegate_->IsDialogButtonEnabled(button);
}
